* Interaction Survival8.sps.

* Written by PSKL on 17/04/03.

* Produce tables of order statistics of survival curves for selective interactions between descriptive variables.
* This analysis uses random censoring instead of weighting to allow for reattendance probabilities.
* For processing and storage space reasons, no plots are produced, only order statistics, standard errors and confidence intervals.
* This is an extended version of Interaction Survival.sps.

Get file = 'D:\Longitudinal Data\Longitudinal Analysis Master 1991 to 2001.sav'.

* Restrict to remove cases with just root filling or tunnel resto.

select if (not any(maintrt,1411,1501)).

* Consolidate the age groupings.

Recode patagegr
 (1 thru 2 =1)
 (3=2)
 (4=3)
 (5=4)
 (6=5)
 (7 thru 8 =6)
into patageg2.

Variable Labels patageg2 'Patient age (years)'.

Value labels patageg2
 1 '18 to 29'
 2 '30 to 39'
 3 '40 to 49'
 4 '50 to 59'
 5 '60 to 69'
 6 '70 or older'.

* Group Teeth.

Recode tooth
 (1 thru 3 =1)
 (4 thru 5 =2)
 (6 thru 8 =3)
 into toothtyp.

Variable labels toothtyp 'Tooth type'.

Value labels toothtyp
 1 'Incisor and canine'
 2 'Premolar'
 3 'Molar'.

* Censor the proportion prreatt of all non-returners at the end of the observation period (instead of earlier).

Set seed = 17042003.

select if (recid=1).
compute random=uniform(1).
if (reint=0 and random<prreatt) time=yrmoda(2001,12,31)-yrmoda(1899,12,31)- doplacn.

* Save a restricted set of variables.

save outfile='D:\temp1.sav'
 /keep patidn toothtyp claimidn maintrt yearplac dentage counqual intgrp feesgrp
 patageg2 reint time.

* Prepare for split file analysis.

Get file='D:\temp1.sav'.

sort cases by toothtyp.

split file by toothtyp.

KM
  time  by yearplac /STATUS=reint(1)
    /strata = maintrt
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:05:59
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File Tooth type
N of Rows in Working Data File 491404
Syntax KM
time by yearplac /STATUS=reint(1)
/strata = maintrt
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:17.63




TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3736.00      3170.00      2364.00      1861.00      1468.00      1239.00       990.00
 Standard Error        .            .            .         364.69       351.12       240.51       159.17       121.03       120.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              724.00       570.00       396.00       311.00       184.00
 Standard Error      89.65        65.71        48.41        31.23          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3372.00      2570.00      2021.00      1492.00      1216.00       929.00       818.00
 Standard Error        .            .            .         376.94       299.48       219.20       147.61        99.17        63.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              667.00       484.00       367.00       221.00       105.00
 Standard Error      74.47        62.38        48.56        41.59          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2804.00      2168.00      1798.00      1425.00      1229.00       992.00
 Standard Error        .            .            .            .         275.81       192.04       159.17       109.72       112.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              770.00       573.00       428.00       298.00       154.00
 Standard Error      84.28        68.39        49.99        41.54          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2205.00      1814.00      1513.00      1238.00      1032.00       863.00
 Standard Error        .            .            .            .         199.20       164.07       139.93       108.57       102.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              635.00       469.00       383.00       219.00       149.00
 Standard Error      96.69        53.97        51.50        39.59          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2196.00      1891.00      1561.00      1327.00      1010.00
 Standard Error        .            .            .            .            .         245.40       199.94       173.79       144.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              806.00       579.00       441.00       199.00       113.00
 Standard Error     117.32        93.95        84.74        61.85          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1624.00      1335.00      1102.00       853.00
 Standard Error        .            .            .            .            .            .         162.04       158.51       130.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              653.00       459.00       320.00       196.00       121.00
 Standard Error     101.39        82.35        57.35        37.51          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1605.00      1289.00      1093.00       898.00
 Standard Error        .            .            .            .            .            .         163.78       124.01       127.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              664.00       492.00       389.00       266.00       175.00
 Standard Error     116.81        69.60        49.21        38.99          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1302.00      1096.00       865.00       721.00
 Standard Error        .            .            .            .            .            .         148.36       136.84       115.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              538.00       393.00       315.00       190.00       107.00
 Standard Error      99.40        56.58        49.76        49.60          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .         972.00       655.00       549.00
 Standard Error        .            .            .            .            .            .            .         153.63        93.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              382.00       269.00       203.00       134.00        80.00
 Standard Error      90.02        52.70        35.93        27.50          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              407.00       289.00       193.00       146.00        57.00
 Standard Error        .          56.83        35.62        30.57          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         252.00       168.00        78.00
 Standard Error        .            .            .          42.75          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3367.00      3091.00      2513.00      2087.00      1945.00      1745.00      1535.00
 Standard Error        .            .            .         443.90       532.67       368.55       199.61       215.93       394.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1228.00       702.00       555.00       284.00       189.00
 Standard Error     364.86       285.31       163.59       117.28          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3255.00      2429.00      2192.00      1903.00      1705.00      1613.00
 Standard Error        .            .            .            .         575.58       257.72       231.90       152.37       223.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1252.00       973.00       747.00       632.00       234.00
 Standard Error     277.24       202.48       123.68       154.99          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2069.00      1925.00      1280.00      1161.00
 Standard Error        .            .            .            .            .            .         422.50       443.12       168.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1005.00       715.00       450.00       373.00       224.00
 Standard Error     282.35       260.54       156.85        85.07          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2733.00      2530.00      2102.00      1818.00      1737.00
 Standard Error        .            .            .            .            .         487.47       457.07       308.23       385.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1127.00      1019.00       770.00       345.00       189.00
 Standard Error     399.06       243.31       270.06       202.84          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1827.00      1739.00      1484.00      1242.00       917.00
 Standard Error        .            .            .            .            .         219.59       325.76       300.72       233.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              765.00       655.00       489.00       338.00       258.00
 Standard Error     139.85       119.07       137.85        81.17          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1764.00      1608.00      1364.00      1147.00
 Standard Error        .            .            .            .            .            .         294.03       236.71       207.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1080.00       684.00       385.00       231.00       174.00
 Standard Error     273.46       352.52       220.70        75.49          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1235.00      1092.00
 Standard Error        .            .            .            .            .            .            .            .         205.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              914.00       877.00       484.00       322.00       194.00
 Standard Error     178.97       258.97       242.66       110.42          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1218.00       560.00       291.00       105.00        27.00
 Standard Error        .         451.48       203.84       102.69          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              804.00       540.00       302.00       264.00       141.00
 Standard Error        .         250.27       144.53        69.72          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         661.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              661.00       426.00       259.00       182.00       157.00
 Standard Error     293.09       144.66       107.38        79.46          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         132.00        66.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3253.00      2645.00      2162.00      1718.00      1365.00      1119.00
 Standard Error        .            .            .            .          64.46        53.61        44.58        32.17        24.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              890.00       686.00       518.00       356.00       187.00
 Standard Error      20.56        16.09        12.60        10.43          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3102.00      2529.00      2051.00      1658.00      1343.00      1050.00
 Standard Error        .            .            .            .          61.65        50.01        39.35        32.44        25.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              846.00       643.00       473.00       314.00       175.00
 Standard Error      19.23        16.08        12.48         9.37          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3015.00      2443.00      2005.00      1658.00      1338.00      1054.00
 Standard Error        .            .            .            .          61.18        46.45        38.09        33.16        27.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       607.00       440.00       278.00       163.00
 Standard Error      21.75        16.41        12.90         9.01          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2565.00      2109.00      1686.00      1351.00      1052.00
 Standard Error        .            .            .            .            .          51.70        43.41        34.82        27.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              825.00       613.00       432.00       270.00       155.00
 Standard Error      21.30        17.43        13.36         9.02          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2499.00      1968.00      1596.00      1308.00      1038.00
 Standard Error        .            .            .            .            .          53.83        38.09        30.98        26.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       605.00       423.00       263.00       161.00
 Standard Error      21.28        17.35        13.58         8.62          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1733.00      1385.00      1084.00
 Standard Error        .            .            .            .            .            .            .          35.91        28.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              849.00       635.00       441.00       274.00       158.00
 Standard Error      22.02        18.31        14.21         9.32          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1637.00      1253.00      1006.00
 Standard Error        .            .            .            .            .            .            .          34.30        23.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              792.00       594.00       412.00       261.00       139.00
 Standard Error      19.97        16.74        12.95         8.85          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1239.00       928.00
 Standard Error        .            .            .            .            .            .            .            .          26.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              724.00       526.00       371.00       225.00       119.00
 Standard Error      19.18        15.25        11.50         8.12          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         963.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              712.00       536.00       374.00       225.00       136.00
 Standard Error      19.96        14.49        11.61         7.51          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         538.00       364.00       207.00       117.00
 Standard Error        .            .          12.50         7.75          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         232.00       127.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3881.00      3054.00      2540.00      2126.00      1734.00      1420.00      1175.00       932.00
 Standard Error        .            .         162.00       112.15        96.56        82.36        63.20        52.17        44.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              735.00       574.00       399.00       257.00       163.00
 Standard Error      33.92        29.11        24.19        14.96          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3197.00      2680.00      2234.00      1834.00      1568.00      1214.00      1024.00
 Standard Error        .            .            .         111.63        96.53        75.21        67.30        56.89        39.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              817.00       661.00       469.00       306.00       172.00
 Standard Error      33.69        28.67        26.17        18.05          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2777.00      2408.00      2027.00      1669.00      1296.00      1032.00
 Standard Error        .            .            .            .          83.10        80.05        77.56        64.23        49.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              778.00       603.00       457.00       292.00       175.00
 Standard Error      38.02        25.86        21.95        16.40          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2555.00      2141.00      1772.00      1454.00      1179.00       990.00
 Standard Error        .            .            .            .          83.08        70.71        59.72        44.93        38.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              763.00       555.00       386.00       263.00       149.00
 Standard Error      37.01        29.48        20.09        13.64          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2421.00      1893.00      1582.00      1308.00      1091.00       888.00
 Standard Error        .            .            .            .          90.60        62.13        51.54        42.11        39.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              672.00       522.00       350.00       216.00       142.00
 Standard Error      32.37        25.85        21.86        12.35          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1737.00      1456.00      1229.00       983.00       783.00
 Standard Error        .            .            .            .            .          60.88        56.26        49.60        40.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              602.00       468.00       321.00       203.00       119.00
 Standard Error      31.31        25.74        21.07        13.96          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1623.00      1241.00      1005.00       799.00
 Standard Error        .            .            .            .            .            .          72.05        49.55        38.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              642.00       497.00       368.00       232.00       158.00
 Standard Error      30.49        25.34        21.56        14.30          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1127.00       890.00       710.00
 Standard Error        .            .            .            .            .            .            .          47.91        35.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       434.00       292.00       191.00       124.00
 Standard Error      27.81        25.76        19.88        11.47          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         906.00       706.00
 Standard Error        .            .            .            .            .            .            .            .          38.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              551.00       418.00       320.00       196.00       102.00
 Standard Error      29.69        22.28        18.68        15.27          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              598.00       462.00       343.00       210.00       146.00
 Standard Error        .          24.84        21.88        13.32          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         340.00       196.00        98.00
 Standard Error        .            .            .          20.73          .



TOOTHTYP:      1.00   Incisor and canine
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                 2968    1288     1680      56.60
  YEARPLAC     1991.00                              414     203      211      50.97
  YEARPLAC     1992.00                              377     195      182      48.28
  YEARPLAC     1993.00                              390     188      202      51.79
  YEARPLAC     1994.00                              321     163      158      49.22
  YEARPLAC     1995.00                              246     104      142      57.72
  YEARPLAC     1996.00                              258     113      145      56.20
  YEARPLAC     1997.00                              256     106      150      58.59
  YEARPLAC     1998.00                              204      86      118      57.84
  YEARPLAC     1999.00                              180      66      114      63.33
  YEARPLAC     2000.00                              173      47      126      72.83
  YEARPLAC     2001.00                              149      17      132      88.59

MAINTRT     Two surface amalgam, not MO or DO       653     245      408      62.48
  YEARPLAC     1991.00                               82      41       41      50.00
  YEARPLAC     1992.00                              105      49       56      53.33
  YEARPLAC     1993.00                               55      23       32      58.18
  YEARPLAC     1994.00                               64      25       39      60.94
  YEARPLAC     1995.00                               70      31       39      55.71
  YEARPLAC     1996.00                               61      23       38      62.30
  YEARPLAC     1997.00                               52      18       34      65.38
  YEARPLAC     1998.00                               39      10       29      74.36
  YEARPLAC     1999.00                               39      10       29      74.36
  YEARPLAC     2000.00                               49      11       38      77.55
  YEARPLAC     2001.00                               37       4       33      89.19

MAINTRT     Composite resin                       95805   33680    62125      64.85
  YEARPLAC     1991.00                             9083    4263     4820      53.07
  YEARPLAC     1992.00                             9118    4312     4806      52.71
  YEARPLAC     1993.00                             8510    3932     4578      53.80
  YEARPLAC     1994.00                             8528    3704     4824      56.57
  YEARPLAC     1995.00                             8297    3517     4780      57.61
  YEARPLAC     1996.00                             8329    3164     5165      62.01
  YEARPLAC     1997.00                             8565    3068     5497      64.18
  YEARPLAC     1998.00                             8698    2839     5859      67.36
  YEARPLAC     1999.00                             9052    2466     6586      72.76
  YEARPLAC     2000.00                             8978    1761     7217      80.39
  YEARPLAC     2001.00                             8647     654     7993      92.44

MAINTRT     Glass ionomer                         23345    9542    13803      59.13
  YEARPLAC     1991.00                             2210    1131     1079      48.82
  YEARPLAC     1992.00                             2419    1185     1234      51.01
  YEARPLAC     1993.00                             2614    1192     1422      54.40
  YEARPLAC     1994.00                             2720    1293     1427      52.46
  YEARPLAC     1995.00                             2533    1194     1339      52.86
  YEARPLAC     1996.00                             1955     893     1062      54.32
  YEARPLAC     1997.00                             1941     803     1138      58.63
  YEARPLAC     1998.00                             1875     711     1164      62.08
  YEARPLAC     1999.00                             1801     614     1187      65.91
  YEARPLAC     2000.00                             1732     384     1348      77.83
  YEARPLAC     2001.00                             1545     142     1403      90.81

Overall                                          122771   44755    78016      63.55


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Single surface amalgam

               Statistic        df       Significance

 Log Rank          19.69        10          .0323





TOOTHTYP:      1.00   Incisor and canine
 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Two surface amalgam, not MO or DO

               Statistic        df       Significance

 Log Rank           6.70        10          .7538


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Composite resin

               Statistic        df       Significance

 Log Rank          75.96        10          .0000


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Glass ionomer

               Statistic        df       Significance

 Log Rank          90.85        10          .0000




 Log Rank Statistic and (Significance)
 For MAINTRT  = Single surface amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       1.21
             ( .2720)

  1993.00        .34      .45
             ( .5577) ( .5012)

  1994.00       2.82      .13     1.34
             ( .0928) ( .7158) ( .2463)

  1995.00        .00     1.17      .17     2.27
             ( .9931) ( .2798) ( .6791) ( .1317)

  1996.00        .44      .23      .18      .72      .22
             ( .5092) ( .6309) ( .6727) ( .3964) ( .6364)

  1997.00        .45      .19      .47      .33      .46      .02
             ( .5030) ( .6616) ( .4934) ( .5653) ( .4982) ( .8790)

  1998.00       4.62      .63     4.14      .71     4.16     1.27     1.57
             ( .0316) ( .4264) ( .0419) ( .3980) ( .0414) ( .2594) ( .2095)

  1999.00       8.55     2.58     8.12     3.34     6.83     2.96     3.74      .61
             ( .0035) ( .1083) ( .0044) ( .0675) ( .0090) ( .0855) ( .0532) ( .4338)

  2000.00       5.06     2.42     5.48     1.54     4.05     1.35     1.90      .14      .61
             ( .0245) ( .1201) ( .0192) ( .2153) ( .0442) ( .2451) ( .1685) ( .7081) ( .4357)

  2001.00       5.58     1.17     4.62     1.47     1.07      .57     2.65      .24      .56      .44
             ( .0181) ( .2796) ( .0316) ( .2253) ( .3002) ( .4508) ( .1035) ( .6217) ( .4561) ( .5065)





TOOTHTYP:      1.00   Incisor and canine
 Log Rank Statistic and (Significance)
 For MAINTRT  = Two surface amalgam, not MO or DO

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .38
             ( .5356)

  1993.00        .22      .02
             ( .6353) ( .8917)

  1994.00        .18      .09      .04
             ( .6673) ( .7647) ( .8464)

  1995.00        .57      .84      .40     1.53
             ( .4500) ( .3583) ( .5257) ( .2162)

  1996.00        .27      .78      .06      .75      .16
             ( .6040) ( .3771) ( .8076) ( .3851) ( .6925)

  1997.00        .31      .80      .00      .73      .22      .06
             ( .5805) ( .3724) ( .9889) ( .3924) ( .6363) ( .8042)

  1998.00        .06      .23      .28      .05      .51      .21      .41
             ( .8049) ( .6339) ( .5984) ( .8194) ( .4749) ( .6476) ( .5201)

  1999.00        .19     1.04      .19      .78      .02      .08      .09      .10
             ( .6658) ( .3079) ( .6650) ( .3779) ( .8829) ( .7715) ( .7682) ( .7519)

  2000.00       1.40     6.00     1.10     2.32     1.43      .63     1.15      .28      .19
             ( .2366) ( .0143) ( .2947) ( .1279) ( .2324) ( .4265) ( .2836) ( .5974) ( .6647)

  2001.00        .60     3.11     1.55     1.02     1.91      .14      .53      .00      .19      .00
             ( .4368) ( .0777) ( .2133) ( .3126) ( .1674) ( .7076) ( .4646) ( .9963) ( .6605) ( .9698)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Composite resin

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       4.08
             ( .0434)

  1993.00       6.88      .84
             ( .0087) ( .3604)

  1994.00       2.27      .02     1.49
             ( .1322) ( .8840) ( .2215)

  1995.00       7.68     1.18      .00      .94
             ( .0056) ( .2770) ( .9733) ( .3310)

  1996.00        .19     1.44     4.35     1.23     6.73
             ( .6604) ( .2309) ( .0369) ( .2671) ( .0095)

  1997.00       7.20     1.67      .50     1.47      .00     3.42
             ( .0073) ( .1962) ( .4793) ( .2251) ( .9774) ( .0643)

  1998.00      17.96     8.64     5.98     6.43     3.42    11.01      .83
             ( .0000) ( .0033) ( .0145) ( .0112) ( .0643) ( .0009) ( .3634)

  1999.00      34.71    14.97     8.88     8.90     7.12    15.36     3.09      .66
             ( .0000) ( .0001) ( .0029) ( .0029) ( .0076) ( .0001) ( .0790) ( .4163)

  2000.00      52.88    27.06    11.70    12.14     9.04    16.93     5.78      .46      .35
             ( .0000) ( .0000) ( .0006) ( .0005) ( .0026) ( .0000) ( .0162) ( .4981) ( .5519)




  2001.00      53.64    24.75     9.81     6.86     5.64     8.38     3.29      .61      .17     3.33
             ( .0000) ( .0000) ( .0017) ( .0088) ( .0175) ( .0038) ( .0699) ( .4337) ( .6783) ( .0679)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Glass ionomer

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       1.81
             ( .1780)

  1993.00       4.65      .76
             ( .0311) ( .3835)

  1994.00        .05     1.43     3.17
             ( .8154) ( .2321) ( .0749)

  1995.00       2.25     8.70    14.31     2.82
             ( .1338) ( .0032) ( .0002) ( .0932)

  1996.00      10.56    22.05    31.57    12.99     2.22
             ( .0012) ( .0000) ( .0000) ( .0003) ( .1358)

  1997.00       2.03     8.58    13.75     3.26      .06     2.98
             ( .1538) ( .0034) ( .0002) ( .0709) ( .8119) ( .0841)

  1998.00      11.71    23.24    27.04    14.07     3.91      .17     1.47
             ( .0006) ( .0000) ( .0000) ( .0002) ( .0479) ( .6818) ( .2258)

  1999.00      20.07    38.48    34.83    26.09    10.04     2.42     4.65      .03
             ( .0000) ( .0000) ( .0000) ( .0000) ( .0015) ( .1199) ( .0310) ( .8725)

  2000.00       6.16    22.23    13.56     5.73     1.03      .08      .40     1.60     2.20
             ( .0131) ( .0000) ( .0002) ( .0167) ( .3094) ( .7739) ( .5250) ( .2063) ( .1379)

  2001.00       9.05    17.83    13.58     6.23     1.04      .12     4.31      .09      .01      .88
             ( .0026) ( .0000) ( .0002) ( .0125) ( .3077) ( .7278) ( .0380) ( .7596) ( .9172) ( .3479)







TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3032.00      2424.00      2028.00      1546.00
 Standard Error        .            .            .            .            .            .         149.92       125.77       110.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1205.00       951.00       676.00       435.00       244.00
 Standard Error      73.80        60.29        51.68        35.25          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3107.00      2381.00      1909.00      1519.00
 Standard Error        .            .            .            .            .            .         175.48       119.34        91.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1216.00       836.00       611.00       385.00       188.00
 Standard Error      84.59        67.78        44.86        34.31          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3111.00      2405.00      1798.00      1356.00
 Standard Error        .            .            .            .            .            .         198.10       151.75       107.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1056.00       721.00       491.00       299.00       174.00
 Standard Error      81.43        66.79        42.98        26.90          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2778.00      2138.00      1775.00      1464.00
 Standard Error        .            .            .            .            .            .         160.66       104.77        93.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1154.00       862.00       626.00       417.00       207.00
 Standard Error      82.08        66.23        48.01        37.70          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2112.00      1695.00      1330.00
 Standard Error        .            .            .            .            .            .            .         128.85       101.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       827.00       586.00       319.00       174.00
 Standard Error      74.17        61.15        59.95        39.03          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2066.00      1663.00
 Standard Error        .            .            .            .            .            .            .            .         136.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1212.00       840.00       497.00       324.00       168.00
 Standard Error     123.62        96.60        61.73        31.31          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1617.00      1282.00
 Standard Error        .            .            .            .            .            .            .            .          94.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1015.00       765.00       580.00       358.00       179.00
 Standard Error      77.91        58.69        48.21        39.67          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1280.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1011.00       782.00       530.00       362.00       180.00
 Standard Error      72.74        66.82        51.58        35.69          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1041.00       711.00       448.00       275.00       166.00
 Standard Error        .          86.34        55.90        30.60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         627.00       434.00       287.00       173.00
 Standard Error        .            .          46.49        29.49          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         287.00       156.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3780.00      3065.00      2176.00      1793.00      1472.00      1269.00       979.00       708.00
 Standard Error        .            .         649.82       516.77       273.14       241.91       184.97       208.17       137.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       492.00       354.00       224.00       145.00
 Standard Error      91.41        74.15        70.86        46.84          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2973.00      2491.00      2240.00      2106.00      1621.00      1197.00       961.00
 Standard Error        .            .            .         296.66       162.43       308.90       333.39       292.79       195.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              658.00       441.00       369.00       231.00       112.00
 Standard Error     167.19        85.35        63.26        60.45          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2962.00      2436.00      1800.00      1410.00      1298.00       970.00       683.00       588.00
 Standard Error        .            .         523.81       455.05       237.87       175.36       253.88       153.75        79.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              459.00       376.00       258.00       167.00        76.00
 Standard Error      74.02        71.47        54.53        44.94          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2703.00      2439.00      1872.00      1524.00      1331.00       956.00
 Standard Error        .            .            .            .         357.71       357.05       212.35       238.25       281.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              615.00       518.00       364.00       199.00       143.00
 Standard Error     158.61        82.07        86.17        54.59          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2196.00      1922.00      1645.00      1260.00      1026.00       929.00       742.00
 Standard Error        .            .            .         233.85       299.95       265.31       166.01       144.93       126.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              612.00       496.00       400.00       308.00       137.00
 Standard Error      97.29        78.22        72.04        78.87          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        1951.00      1555.00      1196.00      1018.00       763.00       624.00       529.00
 Standard Error        .            .            .         303.91       238.43       206.30       170.08        93.10        80.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              423.00       338.00       202.00       161.00        91.00
 Standard Error      69.32        80.32        54.54        27.33          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1686.00       847.00       798.00       621.00
 Standard Error        .            .            .            .            .            .         376.90       109.37       147.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              476.00       322.00       190.00       161.00        64.00
 Standard Error     111.05        99.16        56.03        34.06          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1270.00       811.00       599.00
 Standard Error        .            .            .            .            .            .            .         246.62       127.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              490.00       394.00       209.00       182.00       127.00
 Standard Error     118.37        97.22        60.83        21.01          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         942.00       765.00
 Standard Error        .            .            .            .            .            .            .            .         163.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              593.00       463.00       363.00       233.00       121.00
 Standard Error     125.38        86.00        84.88        77.03          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .         609.00       588.00       506.00
 Standard Error        .            .            .            .            .            .            .          64.12        41.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              483.00       367.00       235.00       140.00        96.00
 Standard Error      87.00        97.60        75.53        41.09          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         169.00        62.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3978.00      3197.00      2596.00      2127.00      1651.00
 Standard Error        .            .            .            .            .         105.42        79.52        66.83        56.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1275.00       963.00       728.00       468.00       238.00
 Standard Error      42.74        31.01        24.58        20.07          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3363.00      2773.00      2198.00      1805.00
 Standard Error        .            .            .            .            .            .          86.81        68.79        51.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1420.00      1061.00       749.00       478.00       242.00
 Standard Error      46.14        37.76        28.84        20.49          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3241.00      2627.00      2078.00      1697.00
 Standard Error        .            .            .            .            .            .          87.17        67.76        52.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1314.00       997.00       680.00       462.00       225.00
 Standard Error      44.69        36.74        27.29        19.11          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2728.00      2248.00      1836.00      1437.00
 Standard Error        .            .            .            .            .            .          67.91        59.15        46.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1154.00       867.00       602.00       373.00       189.00
 Standard Error      36.53        32.03        25.20        17.31          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2331.00      1932.00      1549.00
 Standard Error        .            .            .            .            .            .            .          59.55        55.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1165.00       929.00       647.00       436.00       218.00
 Standard Error      41.42        31.47        26.34        18.78          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1871.00      1505.00
 Standard Error        .            .            .            .            .            .            .            .          51.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1158.00       867.00       615.00       381.00       184.00
 Standard Error      43.04        33.39        26.28        19.13          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1479.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1148.00       854.00       603.00       371.00       188.00
 Standard Error      42.86        33.77        26.16        18.84          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1126.00       837.00       607.00       385.00       189.00
 Standard Error        .          33.18        25.30        19.26          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         859.00       569.00       358.00       174.00
 Standard Error        .            .          29.11        19.17          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         642.00       400.00       182.00
 Standard Error        .            .            .          22.16          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         199.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3525.00      2845.00      2385.00      1994.00      1594.00      1260.00
 Standard Error        .            .            .            .         118.55        86.38        78.44        68.90        56.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              953.00       751.00       550.00       358.00       182.00
 Standard Error      41.56        30.67        25.90        20.03          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3565.00      2932.00      2330.00      1933.00      1580.00      1260.00
 Standard Error        .            .            .            .         126.35       100.39        73.00        63.13        50.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1008.00       771.00       556.00       371.00       182.00
 Standard Error      40.64        34.02        26.55        20.47          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2876.00      2366.00      1919.00      1604.00      1237.00
 Standard Error        .            .            .            .            .         101.26        78.12        67.01        59.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              969.00       738.00       551.00       331.00       168.00
 Standard Error      43.58        33.02        28.21        21.84          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2688.00      2209.00      1786.00      1429.00      1178.00
 Standard Error        .            .            .            .            .          95.71        80.16        60.22        49.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              898.00       669.00       496.00       320.00       155.00
 Standard Error      44.94        32.18        24.62        19.92          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2355.00      1903.00      1553.00      1224.00
 Standard Error        .            .            .            .            .            .          85.84        70.01        58.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              956.00       699.00       513.00       345.00       176.00
 Standard Error      48.06        36.93        25.93        20.27          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2015.00      1719.00      1339.00      1116.00
 Standard Error        .            .            .            .            .            .          76.64        64.96        46.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              886.00       689.00       466.00       266.00       131.00
 Standard Error      40.85        36.84        32.07        21.42          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1358.00      1068.00
 Standard Error        .            .            .            .            .            .            .            .          54.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              825.00       612.00       420.00       271.00       148.00
 Standard Error      43.18        34.75        26.02        17.25          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1364.00      1050.00
 Standard Error        .            .            .            .            .            .            .            .          56.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              819.00       602.00       421.00       241.00       125.00
 Standard Error      44.40        35.68        28.67        19.52          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              910.00       621.00       397.00       239.00       104.00
 Standard Error        .          48.14        31.74        20.46          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         639.00       420.00       246.00       119.00
 Standard Error        .            .          33.27        21.58          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         315.00       143.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3724.00      3033.00      2435.00      1874.00      1543.00      1222.00
 Standard Error        .            .            .            .         180.11       159.25       118.16        83.68        68.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              974.00       754.00       547.00       383.00       223.00
 Standard Error      53.45        43.23        33.62        24.29          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3525.00      2827.00      2230.00      1782.00      1435.00      1106.00
 Standard Error        .            .            .            .         178.75       139.61       104.30        86.44        69.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              850.00       653.00       448.00       294.00       173.00
 Standard Error      50.34        40.70        32.38        20.35          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2973.00      2383.00      1964.00      1547.00      1210.00
 Standard Error        .            .            .            .            .         142.55       112.80       101.01        77.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              928.00       598.00       419.00       271.00       154.00
 Standard Error      69.62        52.49        30.02        20.06          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2329.00      1909.00      1436.00      1168.00
 Standard Error        .            .            .            .            .            .         112.29        88.95        66.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       610.00       443.00       278.00       174.00
 Standard Error      59.00        38.83        28.46        19.00          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2100.00      1715.00      1379.00      1150.00
 Standard Error        .            .            .            .            .            .          86.53        65.48        58.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              848.00       609.00       428.00       252.00       161.00
 Standard Error      54.98        39.10        29.10        18.31          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1945.00      1544.00      1234.00
 Standard Error        .            .            .            .            .            .            .          81.14        64.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              946.00       680.00       504.00       365.00       189.00
 Standard Error      56.03        40.40        25.03        21.22          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1521.00      1122.00
 Standard Error        .            .            .            .            .            .            .            .          71.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              832.00       607.00       425.00       269.00       155.00
 Standard Error      50.58        36.23        26.44        17.78          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1416.00      1085.00
 Standard Error        .            .            .            .            .            .            .            .          55.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              839.00       616.00       451.00       295.00       177.00
 Standard Error      43.72        32.76        23.87        17.02          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              827.00       576.00       392.00       223.00       133.00
 Standard Error        .          35.94        25.80        15.93          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         599.00       393.00       239.00       135.00
 Standard Error        .            .          26.34        15.88          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         267.00       147.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3798.00      3038.00      2471.00      1994.00      1595.00      1264.00      1008.00
 Standard Error        .            .            .         192.19       148.20       119.83        97.72        76.20        56.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              799.00       587.00       451.00       271.00       175.00
 Standard Error      47.20        36.48        28.98        20.61          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2674.00      2204.00      1806.00      1455.00      1165.00
 Standard Error        .            .            .            .            .         115.20        96.57        78.38        65.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       674.00       480.00       335.00       182.00
 Standard Error      52.42        40.60        29.37        20.73          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2776.00      2282.00      1918.00      1434.00      1143.00
 Standard Error        .            .            .            .            .         110.58       101.16        88.22        60.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              868.00       630.00       434.00       277.00       168.00
 Standard Error      51.20        39.37        28.50        17.49          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2737.00      2221.00      1763.00      1425.00      1148.00
 Standard Error        .            .            .            .            .         115.31        91.91        67.30        57.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              870.00       606.00       393.00       238.00       146.00
 Standard Error      52.48        41.74        28.61        16.30          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2186.00      1767.00      1420.00      1110.00
 Standard Error        .            .            .            .            .            .          90.48        75.87        55.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              893.00       665.00       475.00       291.00       162.00
 Standard Error      44.83        37.89        29.75        20.73          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1961.00      1574.00      1241.00       977.00
 Standard Error        .            .            .            .            .            .          90.70        73.14        58.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              721.00       554.00       399.00       241.00       133.00
 Standard Error      45.08        31.43        26.75        18.85          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1588.00      1199.00       911.00
 Standard Error        .            .            .            .            .            .            .          81.38        53.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              727.00       533.00       389.00       238.00       153.00
 Standard Error      40.96        33.20        25.98        16.71          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1352.00      1081.00       798.00
 Standard Error        .            .            .            .            .            .            .          64.39        50.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              630.00       459.00       350.00       216.00       138.00
 Standard Error      35.21        26.72        20.76        14.99          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         951.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              735.00       529.00       380.00       245.00       156.00
 Standard Error      44.89        34.52        24.19        16.05          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              594.00       444.00       324.00       189.00        85.00
 Standard Error        .          26.09        21.84        17.12          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         221.00       103.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                10897    3405     7492      68.75
  YEARPLAC     1991.00                             1354     525      829      61.23
  YEARPLAC     1992.00                             1344     519      825      61.38
  YEARPLAC     1993.00                             1247     469      778      62.39
  YEARPLAC     1994.00                             1121     417      704      62.80
  YEARPLAC     1995.00                              976     343      633      64.86
  YEARPLAC     1996.00                              934     277      657      70.34
  YEARPLAC     1997.00                              918     286      632      68.85
  YEARPLAC     1998.00                              881     236      645      73.21
  YEARPLAC     1999.00                              746     164      582      78.02
  YEARPLAC     2000.00                              716     127      589      82.26
  YEARPLAC     2001.00                              660      42      618      93.64

MAINTRT     Two surface amalgam, not MO or DO      1402     639      763      54.42
  YEARPLAC     1991.00                              158      91       67      42.41
  YEARPLAC     1992.00                              164      84       80      48.78
  YEARPLAC     1993.00                              139      80       59      42.45
  YEARPLAC     1994.00                              155      72       83      53.55
  YEARPLAC     1995.00                              127      68       59      46.46
  YEARPLAC     1996.00                              127      71       56      44.09
  YEARPLAC     1997.00                              121      52       69      57.02
  YEARPLAC     1998.00                              134      53       81      60.45
  YEARPLAC     1999.00                               92      29       63      68.48
  YEARPLAC     2000.00                               96      30       66      68.75
  YEARPLAC     2001.00                               89       9       80      89.89

MAINTRT     MO or DO amalgam                      50852   14712    36140      71.07
  YEARPLAC     1991.00                             5518    2145     3373      61.13
  YEARPLAC     1992.00                             5637    2023     3614      64.11
  YEARPLAC     1993.00                             5256    1876     3380      64.31
  YEARPLAC     1994.00                             5109    1903     3206      62.75
  YEARPLAC     1995.00                             4771    1596     3175      66.55
  YEARPLAC     1996.00                             4591    1456     3135      68.29
  YEARPLAC     1997.00                             4431    1255     3176      71.68
  YEARPLAC     1998.00                             4277    1052     3225      75.40
  YEARPLAC     1999.00                             3929     761     3168      80.63
  YEARPLAC     2000.00                             3837     482     3355      87.44
  YEARPLAC     2001.00                             3496     163     3333      95.34

MAINTRT     MOD amalgam                           25546    9069    16477      64.50
  YEARPLAC     1991.00                             2988    1369     1619      54.18
  YEARPLAC     1992.00                             2987    1325     1662      55.64
  YEARPLAC     1993.00                             2707    1159     1548      57.19
  YEARPLAC     1994.00                             2621    1129     1492      56.92
  YEARPLAC     1995.00                             2452     955     1497      61.05
  YEARPLAC     1996.00                             2206     861     1345      60.97
  YEARPLAC     1997.00                             2206     762     1444      65.46
  YEARPLAC     1998.00                             2038     631     1407      69.04
  YEARPLAC     1999.00                             1872     445     1427      76.23
  YEARPLAC     2000.00                             1802     325     1477      81.96
  YEARPLAC     2001.00                             1667     108     1559      93.52

MAINTRT     Composite resin                       22158    6952    15206      68.63
  YEARPLAC     1991.00                             1610     726      884      54.91
  YEARPLAC     1992.00                             1634     732      902      55.20
  YEARPLAC     1993.00                             1555     653      902      58.01
  YEARPLAC     1994.00                             1785     749     1036      58.04
  YEARPLAC     1995.00                             1910     789     1121      58.69
  YEARPLAC     1996.00                             1988     710     1278      64.29
  YEARPLAC     1997.00                             2071     683     1388      67.02
  YEARPLAC     1998.00                             2343     717     1626      69.40
  YEARPLAC     1999.00                             2391     591     1800      75.28
  YEARPLAC     2000.00                             2331     426     1905      81.72
  YEARPLAC     2001.00                             2540     176     2364      93.07



MAINTRT     Glass ionomer                         19834    7066    12768      64.37
  YEARPLAC     1991.00                             1555     760      795      51.13
  YEARPLAC     1992.00                             1773     773     1000      56.40
  YEARPLAC     1993.00                             2023     863     1160      57.34
  YEARPLAC     1994.00                             2127     898     1229      57.78
  YEARPLAC     1995.00                             2041     816     1225      60.02
  YEARPLAC     1996.00                             1745     697     1048      60.06
  YEARPLAC     1997.00                             1722     624     1098      63.76
  YEARPLAC     1998.00                             1822     636     1186      65.09
  YEARPLAC     1999.00                             1747     480     1267      72.52
  YEARPLAC     2000.00                             1741     394     1347      77.37
  YEARPLAC     2001.00                             1538     125     1413      91.87

Overall                                          130689   41843    88846      67.98


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Single surface amalgam

               Statistic        df       Significance

 Log Rank          16.87        10          .0772


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Two surface amalgam, not MO or DO

               Statistic        df       Significance

 Log Rank          10.57        10          .3916


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = MO or DO amalgam

               Statistic        df       Significance

 Log Rank          55.32        10          .0000


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = MOD amalgam

               Statistic        df       Significance

 Log Rank          26.71        10          .0029


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Composite resin

               Statistic        df       Significance

 Log Rank          12.12        10          .2768


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Glass ionomer

               Statistic        df       Significance

 Log Rank          53.93        10          .0000







TOOTHTYP:      2.00   Premolar
 Log Rank Statistic and (Significance)
 For MAINTRT  = Single surface amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .01
             ( .9107)

  1993.00        .60      .40
             ( .4383) ( .5274)

  1994.00        .90      .60      .03
             ( .3435) ( .4370) ( .8727)

  1995.00       2.07     1.01      .17      .03
             ( .1504) ( .3159) ( .6836) ( .8666)

  1996.00        .04      .15     1.48      .91     2.46
             ( .8345) ( .6976) ( .2245) ( .3407) ( .1166)

  1997.00       3.55     2.27      .09      .84      .00     2.62
             ( .0595) ( .1319) ( .7649) ( .3581) ( .9836) ( .1058)

  1998.00       4.68     2.83      .07     2.28      .13     2.34      .01
             ( .0305) ( .0925) ( .7972) ( .1307) ( .7145) ( .1259) ( .9386)

  1999.00       5.55     2.24      .02     2.04      .42     1.19      .07      .04
             ( .0185) ( .1348) ( .8899) ( .1537) ( .5156) ( .2745) ( .7871) ( .8419)

  2000.00      13.83     7.39     1.23     8.44     3.76     1.92     3.99     2.36      .28
             ( .0002) ( .0066) ( .2668) ( .0037) ( .0525) ( .1663) ( .0459) ( .1244) ( .5978)

  2001.00       8.13     1.79      .03     3.88      .30      .13      .46      .53      .00      .00
             ( .0044) ( .1806) ( .8696) ( .0487) ( .5848) ( .7178) ( .4991) ( .4671) ( .9832) ( .9446)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Two surface amalgam, not MO or DO

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .21
             ( .6500)

  1993.00        .93     1.65
             ( .3337) ( .1995)

  1994.00        .47      .13     2.94
             ( .4917) ( .7159) ( .0865)

  1995.00        .31     1.80      .03     2.51
             ( .5755) ( .1795) ( .8523) ( .1132)

  1996.00       2.08     6.59      .30     5.52      .86
             ( .1496) ( .0103) ( .5837) ( .0188) ( .3532)

  1997.00        .01     1.03      .58     1.07      .00     1.65
             ( .9034) ( .3094) ( .4477) ( .2999) ( .9823) ( .1995)

  1998.00        .23     1.28      .26     1.95      .00     1.47      .04
             ( .6324) ( .2582) ( .6071) ( .1631) ( .9568) ( .2248) ( .8500)

  1999.00        .00      .26      .76      .33      .05     2.07     1.07      .47
             ( .9819) ( .6098) ( .3830) ( .5646) ( .8280) ( .1507) ( .3015) ( .4944)

  2000.00       2.39     3.33      .32     3.45     2.78      .04      .25      .75     2.49
             ( .1222) ( .0682) ( .5709) ( .0633) ( .0957) ( .8466) ( .6147) ( .3862) ( .1148)




  2001.00        .40      .36      .00      .21      .75      .21      .38      .12      .33      .28
             ( .5272) ( .5505) ( .9541) ( .6436) ( .3866) ( .6467) ( .5365) ( .7303) ( .5649) ( .5947)


 Log Rank Statistic and (Significance)
 For MAINTRT  = MO or DO amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       2.64
             ( .1040)

  1993.00        .01     2.15
             ( .9246) ( .1427)

  1994.00      13.71    28.12    13.98
             ( .0002) ( .0000) ( .0002)

  1995.00       4.75    12.33     4.26     2.08
             ( .0292) ( .0004) ( .0389) ( .1496)

  1996.00       9.07    18.12     7.61      .16      .50
             ( .0026) ( .0000) ( .0058) ( .6860) ( .4794)

  1997.00       6.57    19.13     7.55      .45      .66      .01
             ( .0103) ( .0000) ( .0060) ( .5024) ( .4177) ( .9386)

  1998.00       8.31    23.80    10.45      .01     1.24      .26      .12
             ( .0039) ( .0000) ( .0012) ( .9420) ( .2659) ( .6103) ( .7339)

  1999.00       6.20    14.34     7.13      .00      .84      .01      .12      .17
             ( .0128) ( .0002) ( .0076) ( .9796) ( .3592) ( .9127) ( .7252) ( .6795)

  2000.00       5.00     6.55     2.41     1.23      .28      .99     1.18      .76     3.26
             ( .0254) ( .0105) ( .1204) ( .2676) ( .5984) ( .3185) ( .2773) ( .3835) ( .0708)

  2001.00       3.78     3.98     2.21      .82     1.22     1.71     2.11      .68     5.07     1.48
             ( .0518) ( .0460) ( .1369) ( .3650) ( .2692) ( .1915) ( .1463) ( .4079) ( .0243) ( .2232)


 Log Rank Statistic and (Significance)
 For MAINTRT  = MOD amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .04
             ( .8336)

  1993.00        .00      .03
             ( .9775) ( .8634)

  1994.00       2.22     3.14     1.70
             ( .1359) ( .0763) ( .1920)

  1995.00        .36      .27      .04     1.15
             ( .5461) ( .6066) ( .8356) ( .2834)

  1996.00       8.96     8.06     5.78     1.32     4.49
             ( .0028) ( .0045) ( .0162) ( .2502) ( .0341)

  1997.00       5.79     6.14     4.57      .34     2.70      .03
             ( .0161) ( .0132) ( .0325) ( .5572) ( .1005) ( .8725)

  1998.00       7.39     9.12     6.27     1.94     4.75      .16      .00
             ( .0066) ( .0025) ( .0123) ( .1632) ( .0292) ( .6852) ( .9709)

  1999.00       1.87     3.97     1.60      .05      .92      .08     1.47     2.01
             ( .1716) ( .0464) ( .2056) ( .8149) ( .3384) ( .7723) ( .2259) ( .1566)




  2000.00      10.01    11.02     7.50     2.48     4.55     1.67      .02      .01      .01
             ( .0016) ( .0009) ( .0062) ( .1156) ( .0330) ( .1957) ( .8941) ( .9079) ( .9126)

  2001.00       2.40     4.81      .62      .19     1.05      .53      .69     1.89     2.77     1.38
             ( .1210) ( .0282) ( .4298) ( .6646) ( .3044) ( .4650) ( .4072) ( .1687) ( .0960) ( .2399)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Composite resin

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       1.42
             ( .2337)

  1993.00        .56      .28
             ( .4536) ( .5988)

  1994.00       1.01      .05      .05
             ( .3148) ( .8252) ( .8269)

  1995.00       4.88      .58     1.75     1.18
             ( .0272) ( .4449) ( .1860) ( .2767)

  1996.00        .02     1.47      .20      .66     4.70
             ( .8885) ( .2253) ( .6531) ( .4151) ( .0301)

  1997.00        .18      .61      .00      .23     2.27      .28
             ( .6724) ( .4358) ( .9733) ( .6285) ( .1318) ( .5972)

  1998.00       3.15      .26     1.30      .10      .00     3.26      .39
             ( .0761) ( .6117) ( .2539) ( .7515) ( .9857) ( .0708) ( .5348)

  1999.00       4.12      .00      .47      .03      .00     2.78      .01      .02
             ( .0423) ( .9719) ( .4927) ( .8619) ( .9904) ( .0954) ( .9252) ( .8856)

  2000.00       9.70      .85      .06      .28      .08     4.25      .02      .65      .24
             ( .0018) ( .3560) ( .8125) ( .5960) ( .7817) ( .0394) ( .8912) ( .4203) ( .6219)

  2001.00      17.93      .89      .06      .56      .01     8.36      .07      .95      .85      .75
             ( .0000) ( .3467) ( .8124) ( .4534) ( .9039) ( .0038) ( .7846) ( .3302) ( .3574) ( .3879)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Glass ionomer

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       3.11
             ( .0779)

  1993.00       2.66      .00
             ( .1028) ( .9992)

  1994.00       1.79      .14      .11
             ( .1808) ( .7126) ( .7395)

  1995.00       1.64      .20      .24      .01
             ( .2008) ( .6518) ( .6276) ( .9132)

  1996.00        .14     4.41     4.67     2.38     2.65
             ( .7127) ( .0357) ( .0306) ( .1226) ( .1037)

  1997.00        .12     5.24     3.80     2.02     2.66      .03
             ( .7297) ( .0221) ( .0514) ( .1555) ( .1032) ( .8648)

  1998.00       5.76    18.48    16.11    14.42    14.80     3.32     2.91
             ( .0164) ( .0000) ( .0001) ( .0001) ( .0001) ( .0684) ( .0881)




  1999.00       1.08     8.30     5.28     4.45     5.63      .08      .07     3.14
             ( .2992) ( .0040) ( .0216) ( .0349) ( .0177) ( .7771) ( .7901) ( .0762)

  2000.00      13.60    27.64    19.16    14.26    23.88     6.18     5.45      .42     5.47
             ( .0002) ( .0000) ( .0000) ( .0002) ( .0000) ( .0129) ( .0196) ( .5184) ( .0193)

  2001.00       4.16    11.20     4.26      .60     4.08      .33      .89      .05      .62     2.57
             ( .0414) ( .0008) ( .0389) ( .4375) ( .0434) ( .5654) ( .3464) ( .8271) ( .4303) ( .1088)







TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3319.00      2672.00      2123.00
 Standard Error        .            .            .            .            .            .            .          75.17        59.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1669.00      1299.00       929.00       627.00       350.00
 Standard Error      44.84        36.59        29.07        20.45          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3514.00      2784.00      2170.00
 Standard Error        .            .            .            .            .            .            .          84.14        66.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1659.00      1230.00       866.00       574.00       329.00
 Standard Error      51.12        39.14        28.29        19.09          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2636.00      2103.00
 Standard Error        .            .            .            .            .            .            .            .          63.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1619.00      1210.00       861.00       547.00       262.00
 Standard Error      51.21        39.30        30.16        22.39          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2591.00      2053.00
 Standard Error        .            .            .            .            .            .            .            .          65.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1558.00      1157.00       812.00       540.00       252.00
 Standard Error      52.12        39.48        28.60        21.46          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        2042.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1591.00      1176.00       862.00       564.00       279.00
 Standard Error      55.38        42.03        30.84        24.11          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        2122.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1672.00      1232.00       903.00       583.00       310.00
 Standard Error      58.06        45.74        33.71        25.38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .        1362.00       936.00       614.00       316.00
 Standard Error        .            .          38.65        26.37          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .        1234.00       865.00       563.00       261.00
 Standard Error        .            .          35.79        26.46          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         866.00       512.00       278.00
 Standard Error        .            .            .          26.74          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         564.00       254.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         254.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3686.00      2918.00      2264.00      1797.00      1421.00
 Standard Error        .            .            .            .            .         195.24       148.61       105.95        91.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1030.00       820.00       634.00       385.00       190.00
 Standard Error      66.11        39.91        38.84        31.67          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2781.00      2274.00      1914.00      1495.00
 Standard Error        .            .            .            .            .            .         113.78        98.85        99.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1067.00       829.00       635.00       408.00       199.00
 Standard Error      73.10        43.71        37.13        31.94          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2721.00      2149.00      1757.00      1468.00
 Standard Error        .            .            .            .            .            .         128.58        87.15        78.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1115.00       864.00       645.00       411.00       197.00
 Standard Error      68.42        49.05        40.92        33.29          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2787.00      2180.00      1672.00      1256.00
 Standard Error        .            .            .            .            .            .         153.09       120.32        88.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              965.00       722.00       501.00       354.00       163.00
 Standard Error      62.02        48.54        34.21        25.86          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2534.00      2124.00      1666.00      1330.00
 Standard Error        .            .            .            .            .            .         125.44       110.42        85.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1022.00       769.00       568.00       364.00       193.00
 Standard Error      70.49        51.30        40.44        30.11          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1777.00      1361.00
 Standard Error        .            .            .            .            .            .            .            .          97.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1086.00       804.00       560.00       362.00       182.00
 Standard Error      72.29        61.50        45.19        31.62          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1709.00      1434.00
 Standard Error        .            .            .            .            .            .            .            .          85.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1091.00       853.00       637.00       420.00       230.00
 Standard Error      75.13        54.11        45.87        34.91          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1079.00       742.00       535.00       353.00       175.00
 Standard Error        .          66.78        41.91        32.22          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              950.00       759.00       573.00       325.00       175.00
 Standard Error        .          49.79        49.26        36.94          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         598.00       362.00       174.00
 Standard Error        .            .            .          38.45          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Two surface amalgam, not MO or DO
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         238.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3846.00      3089.00      2539.00      2127.00      1710.00      1338.00
 Standard Error        .            .            .            .          75.26        53.92        45.11        40.91        30.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1086.00       858.00       635.00       427.00       217.00
 Standard Error      22.04        18.86        15.83        12.67          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3278.00      2693.00      2237.00      1815.00      1449.00
 Standard Error        .            .            .            .            .          58.32        47.43        40.79        33.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1132.00       864.00       636.00       429.00       220.00
 Standard Error      26.61        20.58        15.89        12.49          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3053.00      2521.00      2078.00      1674.00      1337.00
 Standard Error        .            .            .            .            .          54.73        45.89        38.48        31.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1037.00       788.00       581.00       373.00       184.00
 Standard Error      25.10        19.02        15.24        11.94          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2571.00      2084.00      1660.00      1323.00
 Standard Error        .            .            .            .            .            .          50.87        40.73        32.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1026.00       780.00       553.00       365.00       180.00
 Standard Error      25.51        20.21        15.62        11.53          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2524.00      2079.00      1673.00      1358.00
 Standard Error        .            .            .            .            .            .          48.24        39.51        32.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1051.00       782.00       559.00       363.00       182.00
 Standard Error      27.74        21.65        16.31        11.97          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1988.00      1600.00      1311.00
 Standard Error        .            .            .            .            .            .            .          37.72        30.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1030.00       783.00       541.00       356.00       181.00
 Standard Error      26.13        22.02        16.90        11.72          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1602.00      1260.00
 Standard Error        .            .            .            .            .            .            .            .          33.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              971.00       732.00       510.00       325.00       172.00
 Standard Error      25.88        20.50        16.02        10.97          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1353.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1044.00       769.00       534.00       350.00       167.00
 Standard Error      29.19        23.29        16.80        12.15          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1037.00       744.00       523.00       338.00       168.00
 Standard Error        .          23.90        16.74        12.12          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         525.00       309.00       144.00
 Standard Error        .            .            .          13.07          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         341.00       168.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3704.00      2959.00      2432.00      2029.00      1697.00      1360.00      1109.00
 Standard Error        .            .            .         122.35        87.89        67.95        60.05        50.55        37.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              899.00       669.00       494.00       356.00       187.00
 Standard Error      33.52        28.16        19.12        15.54          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3170.00      2637.00      2116.00      1747.00      1411.00      1137.00
 Standard Error        .            .            .            .          96.25        79.96        61.20        50.95        39.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              909.00       689.00       504.00       321.00       171.00
 Standard Error      33.01        27.36        21.88        16.31          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3111.00      2643.00      2101.00      1673.00      1330.00      1091.00
 Standard Error        .            .            .            .          95.13        89.10        68.79        50.09        36.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              881.00       667.00       478.00       291.00       163.00
 Standard Error      32.06        27.88        22.68        15.95          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2530.00      2082.00      1724.00      1412.00      1116.00
 Standard Error        .            .            .            .            .          75.96        61.12        53.31        44.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              873.00       650.00       462.00       294.00       164.00
 Standard Error      35.89        28.84        22.18        15.29          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2102.00      1714.00      1370.00      1091.00
 Standard Error        .            .            .            .            .            .          67.51        55.23        45.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              837.00       610.00       458.00       293.00       153.00
 Standard Error      37.69        27.36        20.28        16.17          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2009.00      1618.00      1268.00      1021.00
 Standard Error        .            .            .            .            .            .          69.21        53.69        42.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              770.00       594.00       408.00       237.00       108.00
 Standard Error      34.32        26.42        22.81        15.96          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1395.00      1083.00
 Standard Error        .            .            .            .            .            .            .            .          45.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              861.00       635.00       461.00       294.00       152.00
 Standard Error      35.97        29.52        22.00        16.71          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1417.00      1168.00
 Standard Error        .            .            .            .            .            .            .            .          45.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              900.00       685.00       475.00       313.00       160.00
 Standard Error      40.01        32.00        24.92        17.22          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              849.00       613.00       429.00       268.00       146.00
 Standard Error        .          32.10        23.29        16.04          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         670.00       422.00       289.00       161.00
 Standard Error        .            .          26.34        15.17          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         333.00       142.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3560.00      2743.00      2321.00      1701.00      1158.00
 Standard Error        .            .            .            .            .         480.60       329.03       362.62       235.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              904.00       664.00       448.00       332.00       203.00
 Standard Error     129.86       117.36        73.70        43.94          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3367.00      2625.00      1846.00      1479.00      1267.00      1098.00
 Standard Error        .            .            .            .         440.84       326.74       158.11       104.99        88.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              916.00       649.00       473.00       245.00       179.00
 Standard Error     108.89        98.60        77.69        46.56          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2835.00      2477.00      1996.00      1595.00      1284.00       979.00
 Standard Error        .            .            .            .         233.05       236.96       194.33       145.93       115.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              836.00       615.00       423.00       262.00       184.00
 Standard Error      81.13        86.93        65.73        35.76          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2291.00      1836.00      1465.00      1259.00      1067.00
 Standard Error        .            .            .            .            .         189.98       132.18        86.73        75.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              891.00       762.00       531.00       335.00       155.00
 Standard Error      59.95        63.89        65.19        47.38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1966.00      1595.00      1135.00       941.00
 Standard Error        .            .            .            .            .            .         163.23       123.95        68.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              755.00       569.00       394.00       256.00       140.00
 Standard Error      63.66        55.95        42.66        29.24          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1793.00      1480.00      1148.00       890.00
 Standard Error        .            .            .            .            .            .         114.38       100.55        68.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              723.00       550.00       382.00       218.00       101.00
 Standard Error      51.89        47.42        40.62        29.03          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1589.00      1244.00       973.00
 Standard Error        .            .            .            .            .            .            .          98.00        67.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              796.00       599.00       396.00       245.00       161.00
 Standard Error      54.35        51.76        40.29        22.28          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1416.00      1100.00       870.00
 Standard Error        .            .            .            .            .            .            .          69.17        59.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              653.00       485.00       363.00       222.00       119.00
 Standard Error      47.76        34.01        27.31        19.76          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         881.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              642.00       455.00       343.00       210.00       105.00
 Standard Error      51.82        32.77        23.72        19.58          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         545.00       349.00       215.00       117.00
 Standard Error        .            .          32.66        19.03          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         193.00        92.00
 Standard Error        .            .            .            .            .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3528.00      2695.00      2315.00      1926.00      1584.00      1339.00      1111.00       852.00
 Standard Error        .            .         191.25       120.94       113.84        88.63        70.00        69.18        64.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              632.00       497.00       370.00       239.00       141.00
 Standard Error      45.27        30.03        25.46        19.72          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2908.00      2203.00      1806.00      1547.00      1282.00      1021.00       840.00
 Standard Error        .            .            .         158.04        93.25        72.47        70.87        57.32        46.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              655.00       511.00       355.00       216.00       114.00
 Standard Error      38.26        31.55        27.49        18.87          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2997.00      2562.00      2085.00      1631.00      1295.00      1009.00       799.00
 Standard Error        .            .            .         122.49       124.16       101.94        77.70        58.40        44.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              619.00       449.00       302.00       191.00       101.00
 Standard Error      37.18        30.25        21.96        14.39          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2614.00      1960.00      1621.00      1256.00       986.00       770.00
 Standard Error        .            .            .            .         127.68        87.18        76.92        56.91        45.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              564.00       414.00       299.00       191.00        94.00
 Standard Error      35.96        25.24        18.43        14.21          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2115.00      1722.00      1369.00      1090.00       878.00       686.00
 Standard Error        .            .            .            .          92.81        76.84        58.51        46.09        37.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              536.00       413.00       301.00       184.00        95.00
 Standard Error      27.79        22.08        18.54        14.14          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1933.00      1534.00      1258.00      1003.00       832.00       618.00
 Standard Error        .            .            .            .          82.32        64.64        50.03        43.35        35.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              501.00       376.00       254.00       164.00        82.00
 Standard Error      24.28        22.61        17.06        12.13          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1551.00      1274.00      1026.00       815.00       646.00
 Standard Error        .            .            .            .            .          61.85        52.55        42.22        34.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              487.00       371.00       239.00       181.00        84.00
 Standard Error      27.24        22.37        15.29        10.43          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1307.00       995.00       818.00       641.00
 Standard Error        .            .            .            .            .            .          55.82        38.92        34.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              488.00       375.00       257.00       180.00        72.00
 Standard Error      26.09        21.03        15.75        12.23          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         871.00       704.00
 Standard Error        .            .            .            .            .            .            .            .          32.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              551.00       405.00       273.00       174.00        70.00
 Standard Error      28.77        24.02        17.77        13.16          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         633.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              482.00       368.00       249.00       177.00        84.00
 Standard Error      26.23        20.36        14.86        10.84          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         273.00       162.00        70.00
 Standard Error        .            .            .          15.01          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                62553   14707    47846      76.49
  YEARPLAC     1991.00                             7689    2489     5200      67.63
  YEARPLAC     1992.00                             7554    2350     5204      68.89
  YEARPLAC     1993.00                             6769    2064     4705      69.51
  YEARPLAC     1994.00                             6469    1895     4574      70.71
  YEARPLAC     1995.00                             5569    1488     4081      73.28
  YEARPLAC     1996.00                             5299    1245     4054      76.51
  YEARPLAC     1997.00                             5306    1053     4253      80.15
  YEARPLAC     1998.00                             4997     893     4104      82.13
  YEARPLAC     1999.00                             4650     679     3971      85.40
  YEARPLAC     2000.00                             4271     408     3863      90.45
  YEARPLAC     2001.00                             3980     143     3837      96.41

MAINTRT     Two surface amalgam, not MO or DO     14625    4530    10095      69.03
  YEARPLAC     1991.00                             1723     688     1035      60.07
  YEARPLAC     1992.00                             1705     685     1020      59.82
  YEARPLAC     1993.00                             1638     644      994      60.68
  YEARPLAC     1994.00                             1534     573      961      62.65
  YEARPLAC     1995.00                             1352     479      873      64.57
  YEARPLAC     1996.00                             1258     400      858      68.20
  YEARPLAC     1997.00                             1212     358      854      70.46
  YEARPLAC     1998.00                             1156     289      867      75.00
  YEARPLAC     1999.00                             1042     232      810      77.74
  YEARPLAC     2000.00                             1048     143      905      86.35
  YEARPLAC     2001.00                              957      39      918      95.92

MAINTRT     MO or DO amalgam                      96235   30504    65731      68.30
  YEARPLAC     1991.00                            10009    4341     5668      56.63
  YEARPLAC     1992.00                            10158    4157     6001      59.08
  YEARPLAC     1993.00                             9919    4077     5842      58.90
  YEARPLAC     1994.00                             9372    3635     5737      61.21
  YEARPLAC     1995.00                             8833    3269     5564      62.99
  YEARPLAC     1996.00                             8446    2937     5509      65.23
  YEARPLAC     1997.00                             8525    2686     5839      68.49
  YEARPLAC     1998.00                             8195    2148     6047      73.79
  YEARPLAC     1999.00                             7758    1676     6082      78.40
  YEARPLAC     2000.00                             7613    1149     6464      84.91
  YEARPLAC     2001.00                             7407     429     6978      94.21

MAINTRT     MOD amalgam                           34749   12375    22374      64.39
  YEARPLAC     1991.00                             3538    1725     1813      51.24
  YEARPLAC     1992.00                             3735    1752     1983      53.09
  YEARPLAC     1993.00                             3528    1596     1932      54.76
  YEARPLAC     1994.00                             3414    1480     1934      56.65
  YEARPLAC     1995.00                             3244    1332     1912      58.94
  YEARPLAC     1996.00                             3157    1246     1911      60.53
  YEARPLAC     1997.00                             3114    1063     2051      65.86
  YEARPLAC     1998.00                             2967     865     2102      70.85
  YEARPLAC     1999.00                             2832     698     2134      75.35
  YEARPLAC     2000.00                             2675     461     2214      82.77
  YEARPLAC     2001.00                             2545     157     2388      93.83

MAINTRT     Composite resin                        9412    2894     6518      69.25
  YEARPLAC     1991.00                              267     112      155      58.05
  YEARPLAC     1992.00                              346     155      191      55.20
  YEARPLAC     1993.00                              391     184      207      52.94
  YEARPLAC     1994.00                              550     244      306      55.64
  YEARPLAC     1995.00                              691     288      403      58.32
  YEARPLAC     1996.00                              861     356      505      58.65
  YEARPLAC     1997.00                              978     356      622      63.60
  YEARPLAC     1998.00                             1271     444      827      65.07
  YEARPLAC     1999.00                             1315     380      935      71.10
  YEARPLAC     2000.00                             1314     253     1061      80.75
  YEARPLAC     2001.00                             1428     122     1306      91.46



MAINTRT     Glass ionomer                         20370    8339    12031      59.06
  YEARPLAC     1991.00                             1255     672      583      46.45
  YEARPLAC     1992.00                             1473     784      689      46.78
  YEARPLAC     1993.00                             1748     871      877      50.17
  YEARPLAC     1994.00                             1848     891      957      51.79
  YEARPLAC     1995.00                             1899     949      950      50.03
  YEARPLAC     1996.00                             1902     948      954      50.16
  YEARPLAC     1997.00                             1957     907     1050      53.65
  YEARPLAC     1998.00                             1996     829     1167      58.47
  YEARPLAC     1999.00                             2139     718     1421      66.43
  YEARPLAC     2000.00                             2112     552     1560      73.86
  YEARPLAC     2001.00                             2041     218     1823      89.32

Overall                                          237944   73349   164595      69.17


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Single surface amalgam

               Statistic        df       Significance

 Log Rank          17.54        10          .0633


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Two surface amalgam, not MO or DO

               Statistic        df       Significance

 Log Rank           4.46        10          .9241


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = MO or DO amalgam

               Statistic        df       Significance

 Log Rank          40.84        10          .0000


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = MOD amalgam

               Statistic        df       Significance

 Log Rank           7.56        10          .6720


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Composite resin

               Statistic        df       Significance

 Log Rank          13.36        10          .2042


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For MAINTRT  = Glass ionomer

               Statistic        df       Significance

 Log Rank          39.86        10          .0000







TOOTHTYP:      3.00   Molar
 Log Rank Statistic and (Significance)
 For MAINTRT  = Single surface amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .50
             ( .4795)

  1993.00        .41      .93
             ( .5227) ( .3360)

  1994.00       2.09     3.12      .18
             ( .1483) ( .0774) ( .6700)

  1995.00       1.58     2.06      .19      .13
             ( .2090) ( .1517) ( .6612) ( .7135)

  1996.00        .00      .00      .62     2.67     1.71
             ( .9656) ( .9745) ( .4310) ( .1025) ( .1906)

  1997.00       1.93     3.43     6.60    11.75     8.48     2.60
             ( .1645) ( .0639) ( .0102) ( .0006) ( .0036) ( .1070)

  1998.00       1.32      .02      .30     1.82      .81      .11     3.16
             ( .2510) ( .8892) ( .5869) ( .1775) ( .3679) ( .7399) ( .0755)

  1999.00       3.95      .51      .09      .60      .23     1.19     3.54      .27
             ( .0469) ( .4761) ( .7616) ( .4375) ( .6327) ( .2762) ( .0600) ( .6053)

  2000.00       4.23      .10      .25      .63      .01      .45     1.67      .03      .99
             ( .0396) ( .7519) ( .6187) ( .4262) ( .9225) ( .5027) ( .1964) ( .8668) ( .3197)

  2001.00      12.15     6.40      .59      .03      .68     3.19     2.67      .37      .10      .06
             ( .0005) ( .0114) ( .4421) ( .8540) ( .4110) ( .0743) ( .1022) ( .5406) ( .7472) ( .8069)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Two surface amalgam, not MO or DO

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .01
             ( .9301)

  1993.00        .31      .27
             ( .5783) ( .6003)

  1994.00        .54      .34      .06
             ( .4642) ( .5592) ( .8052)

  1995.00        .47      .48      .09      .02
             ( .4948) ( .4879) ( .7691) ( .8843)

  1996.00        .00      .37      .01      .47      .41
             ( .9873) ( .5452) ( .9284) ( .4910) ( .5239)

  1997.00        .02      .35      .02     1.09      .51      .03
             ( .8979) ( .5547) ( .8939) ( .2970) ( .4749) ( .8550)

  1998.00        .00      .21      .18     1.39      .32      .09      .08
             ( .9439) ( .6495) ( .6739) ( .2389) ( .5720) ( .7637) ( .7739)

  1999.00       1.19     2.28     3.31      .03      .53     1.12     2.75      .73
             ( .2752) ( .1308) ( .0687) ( .8674) ( .4649) ( .2907) ( .0974) ( .3938)

  2000.00        .11      .37      .48     1.25      .19      .28      .24     1.14      .73
             ( .7436) ( .5427) ( .4863) ( .2636) ( .6667) ( .5969) ( .6254) ( .2859) ( .3915)




  2001.00        .74      .09      .68     2.68     1.29     1.86      .00     2.48     3.20     2.40
             ( .3883) ( .7612) ( .4099) ( .1013) ( .2567) ( .1726) ( .9704) ( .1152) ( .0738) ( .1214)


 Log Rank Statistic and (Significance)
 For MAINTRT  = MO or DO amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       3.61
             ( .0575)

  1993.00        .95     7.15
             ( .3298) ( .0075)

  1994.00        .43     5.78      .10
             ( .5117) ( .0162) ( .7464)

  1995.00       1.25     8.59      .00      .00
             ( .2641) ( .0034) ( .9753) ( .9491)

  1996.00       6.32    14.86     1.33      .94     1.14
             ( .0120) ( .0001) ( .2480) ( .3325) ( .2864)

  1997.00       9.10    21.42     3.38     1.72     2.63      .23
             ( .0026) ( .0000) ( .0660) ( .1892) ( .1051) ( .6325)

  1998.00       1.21     8.21      .00      .14      .04      .64     3.65
             ( .2705) ( .0042) ( .9562) ( .7051) ( .8354) ( .4242) ( .0560)

  1999.00      10.57    13.83      .89      .37      .97      .27     1.51      .23
             ( .0012) ( .0002) ( .3458) ( .5428) ( .3250) ( .6040) ( .2193) ( .6291)

  2000.00      26.17    27.50     5.44     1.79     2.26      .95      .18      .13      .00
             ( .0000) ( .0000) ( .0197) ( .1806) ( .1324) ( .3290) ( .6699) ( .7233) ( .9570)

  2001.00      25.35    31.63     4.14     2.88     1.34     1.29      .09      .17      .01     1.96
             ( .0000) ( .0000) ( .0419) ( .0900) ( .2468) ( .2563) ( .7666) ( .6774) ( .9131) ( .1611)


 Log Rank Statistic and (Significance)
 For MAINTRT  = MOD amalgam

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .59
             ( .4439)

  1993.00        .22      .25
             ( .6376) ( .6182)

  1994.00        .21      .38      .03
             ( .6478) ( .5374) ( .8650)

  1995.00        .13      .38      .00      .02
             ( .7154) ( .5355) ( .9593) ( .9002)

  1996.00       1.45     3.64     1.50     1.90     1.44
             ( .2292) ( .0565) ( .2206) ( .1677) ( .2296)

  1997.00        .27      .00     1.09      .20      .63     4.21
             ( .6048) ( .9788) ( .2975) ( .6557) ( .4289) ( .0402)

  1998.00        .63      .10     2.03      .43     1.49     6.91      .82
             ( .4278) ( .7486) ( .1538) ( .5104) ( .2216) ( .0086) ( .3654)

  1999.00        .86     1.44      .02      .12      .03     2.64      .00      .79
             ( .3550) ( .2309) ( .8833) ( .7331) ( .8521) ( .1039) ( .9806) ( .3736)




  2000.00       2.21     2.47      .78      .38      .00     1.74      .06      .78      .14
             ( .1369) ( .1161) ( .3765) ( .5375) ( .9463) ( .1869) ( .8031) ( .3761) ( .7131)

  2001.00       3.55      .31      .10      .13      .34     6.43      .52      .00     2.07      .59
             ( .0595) ( .5753) ( .7511) ( .7217) ( .5606) ( .0112) ( .4701) ( .9866) ( .1507) ( .4427)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Composite resin

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       1.94
             ( .1637)

  1993.00       3.46      .14
             ( .0628) ( .7055)

  1994.00       3.08      .05      .01
             ( .0792) ( .8244) ( .9138)

  1995.00       2.59      .00      .01      .06
             ( .1076) ( .9635) ( .9163) ( .8102)

  1996.00       4.38      .20      .26      .29      .30
             ( .0363) ( .6516) ( .6116) ( .5913) ( .5847)

  1997.00       2.56      .00      .04      .00      .02     1.09
             ( .1094) ( .9478) ( .8474) ( .9527) ( .8887) ( .2974)

  1998.00       4.89     1.21     1.69     2.70      .81      .42     1.96
             ( .0270) ( .2714) ( .1936) ( .1003) ( .3692) ( .5161) ( .1618)

  1999.00       2.17     3.44      .96     3.88      .58      .01     1.33      .05
             ( .1409) ( .0635) ( .3260) ( .0487) ( .4464) ( .9200) ( .2487) ( .8223)

  2000.00        .82      .66      .32     4.49      .16      .07      .37     1.28     2.71
             ( .3647) ( .4175) ( .5694) ( .0342) ( .6852) ( .7902) ( .5446) ( .2584) ( .0999)

  2001.00       3.60     1.41     1.80     5.23     2.25      .05     1.49      .18      .00      .03
             ( .0576) ( .2343) ( .1796) ( .0222) ( .1339) ( .8277) ( .2218) ( .6691) ( .9616) ( .8705)


 Log Rank Statistic and (Significance)
 For MAINTRT  = Glass ionomer

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .00
             ( .9821)

  1993.00        .16      .14
             ( .6924) ( .7045)

  1994.00        .32      .33      .00
             ( .5713) ( .5660) ( .9885)

  1995.00       3.15     2.34     6.10     4.67
             ( .0761) ( .1263) ( .0135) ( .0307)

  1996.00      10.81     6.87    14.51    10.17     2.01
             ( .0010) ( .0088) ( .0001) ( .0014) ( .1563)

  1997.00       9.37     6.65    11.07     8.72     1.31      .13
             ( .0022) ( .0099) ( .0009) ( .0032) ( .2532) ( .7151)

  1998.00      12.76     9.63     9.16     7.54     1.20      .09      .01
             ( .0004) ( .0019) ( .0025) ( .0060) ( .2741) ( .7653) ( .9025)




  1999.00       6.75     4.29     2.78     1.49      .06     1.90     1.72     2.28
             ( .0094) ( .0384) ( .0955) ( .2230) ( .8012) ( .1680) ( .1901) ( .1314)

  2000.00      10.84    11.84     6.78     3.54     1.15      .08      .00      .01     1.37
             ( .0010) ( .0006) ( .0092) ( .0599) ( .2831) ( .7728) ( .9746) ( .9383) ( .2411)

  2001.00       8.23     5.44     1.30      .90      .70      .30      .16      .12      .01      .35
             ( .0041) ( .0197) ( .2538) ( .3431) ( .4036) ( .5828) ( .6892) ( .7279) ( .9324) ( .5534)





Split file off.

* Analyse interesting subgroups separately.

Temporary.

* Composite resin on incisors and canines.

Select if (toothtyp=1 and maintrt=1421).

KM
  time  by  yearplac/STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:17
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 95805
Syntax KM
time by yearplac/STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:07.45




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3248.00      2812.00      2268.00      1823.00      1442.00
 Standard Error        .            .            .            .            .         134.66       129.49       104.73        80.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1156.00       916.00       688.00       436.00       213.00
 Standard Error      58.78        47.39        42.57        34.14          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3100.00      2450.00      1919.00      1548.00
 Standard Error        .            .            .            .            .            .         153.10       111.11        78.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1247.00       888.00       648.00       419.00       206.00
 Standard Error      71.75        57.57        40.18        30.92          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2774.00      2328.00      1772.00      1441.00
 Standard Error        .            .            .            .            .            .         136.81       117.27        78.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1135.00       889.00       627.00       421.00       200.00
 Standard Error      62.48        53.11        42.78        31.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2818.00      2174.00      1812.00      1405.00
 Standard Error        .            .            .            .            .            .         132.34       103.39        96.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1065.00       803.00       547.00       342.00       161.00
 Standard Error      71.35        54.42        43.31        29.17          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2262.00      1924.00      1535.00      1249.00
 Standard Error        .            .            .            .            .            .         107.79        98.80        74.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              974.00       763.00       567.00       337.00       169.00
 Standard Error      59.49        46.17        43.39        32.16          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1665.00      1326.00
 Standard Error        .            .            .            .            .            .            .            .          85.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1050.00       798.00       550.00       330.00       176.00
 Standard Error      67.76        58.01        46.43        31.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1653.00      1262.00
 Standard Error        .            .            .            .            .            .            .            .          88.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1001.00       791.00       555.00       334.00       144.00
 Standard Error      59.29        50.85        46.56        33.25          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .        1029.00       735.00       437.00       204.00
 Standard Error        .            .          63.34        46.43          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         813.00       553.00       359.00       180.00
 Standard Error        .            .          48.11        31.40          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         508.00       305.00       134.00
 Standard Error        .            .            .          31.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         188.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3414.00      2677.00      2192.00      1688.00      1351.00
 Standard Error        .            .            .            .            .         157.33       123.20       101.96        71.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1064.00       822.00       604.00       400.00       203.00
 Standard Error      55.67        44.28        35.50        28.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2972.00      2548.00      2081.00      1621.00      1233.00
 Standard Error        .            .            .            .            .         116.90       117.16       102.97        76.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              962.00       745.00       575.00       386.00       192.00
 Standard Error      52.49        38.05        30.85        27.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2632.00      2213.00      1835.00      1473.00
 Standard Error        .            .            .            .            .            .         102.51        93.77        87.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1097.00       773.00       557.00       392.00       196.00
 Standard Error      76.93        54.45        33.98        26.38          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2669.00      2245.00      1793.00      1399.00
 Standard Error        .            .            .            .            .            .         114.34       103.22        81.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1098.00       818.00       576.00       362.00       167.00
 Standard Error      63.10        51.26        39.83        29.51          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2054.00      1699.00      1372.00
 Standard Error        .            .            .            .            .            .            .          88.64        82.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       746.00       510.00       323.00       181.00
 Standard Error      71.65        55.55        38.86        25.17          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2058.00      1613.00
 Standard Error        .            .            .            .            .            .            .            .          92.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1286.00      1000.00       674.00       448.00       211.00
 Standard Error      69.52        63.39        50.18        34.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1439.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1104.00       869.00       592.00       356.00       169.00
 Standard Error      64.91        53.37        46.95        31.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1008.00       750.00       495.00       282.00       149.00
 Standard Error        .          55.04        44.08        26.99          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              828.00       618.00       423.00       254.00       153.00
 Standard Error        .          40.71        31.94        19.72          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         491.00       300.00       160.00
 Standard Error        .            .            .          24.11          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         313.00       149.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3960.00      3084.00      2454.00      1997.00      1619.00      1270.00
 Standard Error        .            .            .            .         183.18       132.84       101.49        82.96        65.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1011.00       755.00       552.00       376.00       203.00
 Standard Error      53.15        42.52        31.06        23.35          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3340.00      2652.00      2164.00      1760.00      1430.00      1133.00
 Standard Error        .            .            .            .         148.97       111.22        88.86        73.04        55.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              928.00       722.00       538.00       346.00       182.00
 Standard Error      42.06        37.08        31.15        24.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2819.00      2340.00      1960.00      1631.00      1344.00
 Standard Error        .            .            .            .            .         108.70        86.86        72.67        63.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1061.00       783.00       571.00       354.00       178.00
 Standard Error      60.07        47.15        35.97        27.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2732.00      2242.00      1847.00      1529.00      1170.00
 Standard Error        .            .            .            .            .         114.06        89.53        81.52        73.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              882.00       687.00       515.00       322.00       181.00
 Standard Error      51.65        35.92        31.13        23.42          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2047.00      1673.00      1400.00
 Standard Error        .            .            .            .            .            .            .          76.37        70.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1040.00       749.00       514.00       339.00       177.00
 Standard Error      68.25        49.72        34.68        24.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2057.00      1555.00      1205.00
 Standard Error        .            .            .            .            .            .            .         104.53        68.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              968.00       735.00       535.00       337.00       154.00
 Standard Error      51.29        43.67        34.71        27.72          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1764.00      1260.00
 Standard Error        .            .            .            .            .            .            .            .          93.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              971.00       743.00       510.00       349.00       189.00
 Standard Error      59.76        47.21        35.87        23.57          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1415.00       995.00
 Standard Error        .            .            .            .            .            .            .            .          69.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              766.00       528.00       369.00       228.00       101.00
 Standard Error      48.83        37.41        24.85        18.75          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              882.00       647.00       462.00       294.00       161.00
 Standard Error        .          40.40        30.57        21.65          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         705.00       444.00       229.00       120.00
 Standard Error        .            .          37.30        23.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         330.00       150.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3651.00      2771.00      2323.00      1924.00      1532.00      1244.00      1029.00
 Standard Error        .            .            .         182.65       115.97       107.40        89.01        63.49        49.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              830.00       644.00       477.00       355.00       188.00
 Standard Error      43.12        36.04        26.23        21.66          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3239.00      2654.00      2107.00      1756.00      1462.00      1113.00       920.00
 Standard Error        .            .            .         153.08       120.19        85.49        82.23        67.37        48.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              700.00       574.00       428.00       288.00       175.00
 Standard Error      39.33        27.77        25.31        19.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3212.00      2716.00      2179.00      1834.00      1530.00      1282.00      1075.00       862.00
 Standard Error        .            .         142.74       126.58        91.30        75.35        61.30        54.03        49.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              678.00       504.00       378.00       223.00       160.00
 Standard Error      41.09        31.40        25.97        16.77          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2775.00      2144.00      1735.00      1419.00      1135.00       907.00
 Standard Error        .            .            .            .         146.62       101.18        81.48        66.68        48.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              743.00       539.00       396.00       238.00       141.00
 Standard Error      42.79        36.99        27.85        20.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1935.00      1520.00      1339.00      1140.00       885.00
 Standard Error        .            .            .            .            .          82.07        50.95        59.01        51.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              721.00       553.00       372.00       213.00       151.00
 Standard Error      38.58        37.30        30.92        17.43          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2170.00      1614.00      1333.00      1073.00       847.00
 Standard Error        .            .            .            .            .         101.79        68.00        58.24        48.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              653.00       452.00       313.00       189.00       107.00
 Standard Error      41.97        33.67        23.16        15.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1758.00      1321.00      1062.00       860.00
 Standard Error        .            .            .            .            .            .          83.90        55.39        43.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              677.00       501.00       370.00       227.00       115.00
 Standard Error      38.69        30.06        23.59        18.30          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1113.00       872.00
 Standard Error        .            .            .            .            .            .            .            .          49.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              683.00       533.00       376.00       238.00       123.00
 Standard Error      36.19        30.97        26.22        18.81          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         903.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              658.00       475.00       339.00       204.00       116.00
 Standard Error      45.79        31.53        21.96        16.20          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         485.00       353.00       208.00       119.00
 Standard Error        .            .          23.44        16.29          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         334.00       228.00       173.00
 Standard Error        .            .            .          13.95          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3467.00      2726.00      2129.00      1727.00      1409.00      1168.00       958.00       778.00
 Standard Error        .            .         215.44       160.24       116.23        87.85        69.10        56.91        47.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              618.00       514.00       362.00       233.00       169.00
 Standard Error      34.50        30.92        29.14        17.23          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3221.00      2763.00      2346.00      1818.00      1498.00      1225.00      1052.00       880.00
 Standard Error        .            .         140.13       155.60       132.04        91.79        66.93        50.24        51.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              690.00       538.00       369.00       226.00       133.00
 Standard Error      45.13        38.12        32.32        20.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3127.00      2291.00      1911.00      1562.00      1280.00      1028.00       793.00       662.00
 Standard Error        .            .         205.77       122.92       106.44        88.10        76.37        55.59        40.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              512.00       375.00       295.00       193.00       114.00
 Standard Error      38.49        26.78        20.38        17.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2881.00      2366.00      1957.00      1551.00      1241.00       991.00       725.00
 Standard Error        .            .            .         133.21       124.56       107.48        82.78        73.01        60.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              541.00       406.00       292.00       189.00       118.00
 Standard Error      39.41        29.04        22.06        15.56          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2292.00      1779.00      1437.00      1154.00       952.00       776.00
 Standard Error        .            .            .            .         127.02        93.28        69.21        52.46        48.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              582.00       459.00       329.00       210.00       131.00
 Standard Error      39.55        28.84        24.32        17.04          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2064.00      1643.00      1363.00      1114.00       900.00
 Standard Error        .            .            .            .            .         105.34        80.19        67.75        54.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              722.00       535.00       371.00       244.00       169.00
 Standard Error      47.34        41.41        32.02        17.76          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1501.00      1213.00      1010.00       813.00
 Standard Error        .            .            .            .            .            .          66.60        51.77        43.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              661.00       532.00       379.00       217.00       136.00
 Standard Error      33.30        30.49        30.07        19.71          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1337.00      1040.00       812.00       650.00
 Standard Error        .            .            .            .            .            .          71.68        52.15        42.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              482.00       375.00       259.00       184.00        94.00
 Standard Error      32.50        24.48        18.75        13.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         918.00       712.00
 Standard Error        .            .            .            .            .            .            .            .          39.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              566.00       427.00       319.00       202.00       108.00
 Standard Error      31.11        24.56        19.57        15.81          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              588.00       406.00       274.00       182.00        84.00
 Standard Error        .          33.44        21.05        15.67          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         210.00       105.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2638.00      2143.00      1640.00      1304.00      1126.00       989.00       811.00       720.00
 Standard Error        .         212.72       204.70       169.63       102.74        61.87        60.51        50.58        39.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              587.00       483.00       350.00       197.00       120.00
 Standard Error      37.51        36.85        36.81        25.29          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2421.00      2107.00      1637.00      1323.00      1071.00       926.00       767.00       596.00
 Standard Error        .         164.17       152.60       151.61       107.91        74.47        55.45        58.05        47.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              483.00       372.00       255.00       185.00       105.00
 Standard Error      34.27        32.44        23.57        15.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2252.00      1688.00      1332.00      1040.00       911.00       700.00       587.00
 Standard Error        .            .            .         179.56       125.95        81.83        64.12        57.54        44.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              437.00       350.00       217.00       180.00       100.00
 Standard Error      34.57        32.34        21.86        12.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2489.00      2061.00      1546.00      1215.00      1041.00       882.00       766.00
 Standard Error        .            .            .         183.00       159.75        92.99        59.21        48.04        44.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              615.00       443.00       325.00       220.00       154.00
 Standard Error      50.79        42.11        27.76        18.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2043.00      1573.00      1292.00      1097.00       929.00       708.00
 Standard Error        .            .            .            .         141.30        87.92        65.15        67.16        57.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              575.00       453.00       358.00       213.00       146.00
 Standard Error      39.07        30.34        30.10        22.22          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1829.00      1456.00      1181.00       931.00       749.00
 Standard Error        .            .            .            .            .         114.57        90.07        72.41        54.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              583.00       455.00       353.00       232.00       176.00
 Standard Error      44.19        31.15        26.56        17.89          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1766.00      1457.00      1108.00       910.00       764.00       575.00
 Standard Error        .            .            .            .         109.93        92.83        54.88        53.28        51.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              425.00       365.00       261.00       182.00       103.00
 Standard Error      29.51        21.33        20.87        15.66          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1128.00       903.00       743.00       592.00
 Standard Error        .            .            .            .            .            .          56.56        43.85        38.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              455.00       371.00       266.00       185.00        99.00
 Standard Error      27.15        22.14        19.19        14.36          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         790.00       640.00
 Standard Error        .            .            .            .            .            .            .            .          49.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              434.00       338.00       240.00       183.00       105.00
 Standard Error      39.28        22.72        16.49        12.35          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         609.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              452.00       346.00       229.00       181.00        98.00
 Standard Error      34.37        26.58        17.50        11.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         285.00       212.00       173.00        92.00
 Standard Error        .            .          15.28        12.30          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           15670       4623       11047         70.50
  YEARPLAC        1991.00          1758        719        1039         59.10
  YEARPLAC        1992.00          1842        683        1159         62.92
  YEARPLAC        1993.00          1666        618        1048         62.91
  YEARPLAC        1994.00          1526        547         979         64.15
  YEARPLAC        1995.00          1361        518         843         61.94
  YEARPLAC        1996.00          1317        422         895         67.96
  YEARPLAC        1997.00          1335        393         942         70.56
  YEARPLAC        1998.00          1232        236         996         80.84
  YEARPLAC        1999.00          1254        236        1018         81.18
  YEARPLAC        2000.00          1268        190        1078         85.02
  YEARPLAC        2001.00          1111         61        1050         94.51

PATAGEG2       30 to 39           18332       5582       12750         69.55
  YEARPLAC        1991.00          1897        798        1099         57.93
  YEARPLAC        1992.00          1804        773        1031         57.15
  YEARPLAC        1993.00          1696        681        1015         59.85
  YEARPLAC        1994.00          1754        660        1094         62.37
  YEARPLAC        1995.00          1562        558        1004         64.28
  YEARPLAC        1996.00          1630        489        1141         70.00
  YEARPLAC        1997.00          1582        455        1127         71.24
  YEARPLAC        1998.00          1472        391        1081         73.44
  YEARPLAC        1999.00          1686        412        1274         75.56
  YEARPLAC        2000.00          1726        267        1459         84.53
  YEARPLAC        2001.00          1523         98        1425         93.57

PATAGEG2       40 to 49           19333       6462       12871         66.58
  YEARPLAC        1991.00          1958        877        1081         55.21
  YEARPLAC        1992.00          1932        880        1052         54.45
  YEARPLAC        1993.00          1849        833        1016         54.95
  YEARPLAC        1994.00          1764        753        1011         57.31
  YEARPLAC        1995.00          1835        695        1140         62.13
  YEARPLAC        1996.00          1676        593        1083         64.62
  YEARPLAC        1997.00          1618        493        1125         69.53
  YEARPLAC        1998.00          1821        565        1256         68.97
  YEARPLAC        1999.00          1720        404        1316         76.51
  YEARPLAC        2000.00          1655        280        1375         83.08
  YEARPLAC        2001.00          1505         89        1416         94.09

PATAGEG2       50 to 59           17846       6835       11011         61.70
  YEARPLAC        1991.00          1598        809         789         49.37
  YEARPLAC        1992.00          1576        846         730         46.32
  YEARPLAC        1993.00          1494        804         690         46.18
  YEARPLAC        1994.00          1460        700         760         52.05
  YEARPLAC        1995.00          1464        700         764         52.19
  YEARPLAC        1996.00          1661        727         934         56.23
  YEARPLAC        1997.00          1699        684        1015         59.74
  YEARPLAC        1998.00          1638        572        1066         65.08
  YEARPLAC        1999.00          1674        483        1191         71.15
  YEARPLAC        2000.00          1795        375        1420         79.11
  YEARPLAC        2001.00          1787        135        1652         92.45

PATAGEG2       60 to 69           14200       5825        8375         58.98
  YEARPLAC        1991.00          1131        641         490         43.32
  YEARPLAC        1992.00          1169        654         515         44.05
  YEARPLAC        1993.00          1046        583         463         44.26
  YEARPLAC        1994.00          1210        625         585         48.35
  YEARPLAC        1995.00          1248        636         612         49.04
  YEARPLAC        1996.00          1143        524         619         54.16
  YEARPLAC        1997.00          1394        599         795         57.03
  YEARPLAC        1998.00          1318        557         761         57.74
  YEARPLAC        1999.00          1600        535        1065         66.56
  YEARPLAC        2000.00          1406        342        1064         75.68
  YEARPLAC        2001.00          1535        129        1406         91.60



PATAGEG2       70 or older        10424       4353        6071         58.24
  YEARPLAC        1991.00           741        419         322         43.45
  YEARPLAC        1992.00           795        476         319         40.13
  YEARPLAC        1993.00           759        413         346         45.59
  YEARPLAC        1994.00           814        419         395         48.53
  YEARPLAC        1995.00           827        410         417         50.42
  YEARPLAC        1996.00           902        409         493         54.66
  YEARPLAC        1997.00           937        444         493         52.61
  YEARPLAC        1998.00          1217        518         699         57.44
  YEARPLAC        1999.00          1118        396         722         64.58
  YEARPLAC        2000.00          1128        307         821         72.78
  YEARPLAC        2001.00          1186        142        1044         88.03

Overall                           95805      33680       62125         64.85


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank          38.02        10          .0000


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank          34.32        10          .0002


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank          21.68        10          .0168


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank          16.72        10          .0808


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          20.43        10          .0254


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank          29.45        10          .0011







 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       2.13
             ( .1443)

  1993.00        .01     1.68
             ( .9238) ( .1945)

  1994.00        .33     2.58      .15
             ( .5649) ( .1082) ( .6962)

  1995.00       8.59    13.64     8.90     4.25
             ( .0034) ( .0002) ( .0028) ( .0392)

  1996.00       1.74     3.48     1.46      .39     1.02
             ( .1867) ( .0623) ( .2270) ( .5328) ( .3132)

  1997.00       2.91     6.14     1.92     1.07      .35      .10
             ( .0880) ( .0133) ( .1660) ( .3008) ( .5569) ( .7479)

  1998.00       6.51     3.54     7.02    10.09    18.34    13.30    15.66
             ( .0107) ( .0598) ( .0081) ( .0015) ( .0000) ( .0003) ( .0001)

  1999.00        .78      .55      .18      .50     2.15      .61     1.39     3.22
             ( .3770) ( .4590) ( .6705) ( .4798) ( .1423) ( .4343) ( .2388) ( .0726)

  2000.00       8.02     5.19     4.26      .50      .46      .41      .36     7.80      .53
             ( .0046) ( .0227) ( .0389) ( .4811) ( .4985) ( .5218) ( .5512) ( .0052) ( .4653)

  2001.00       2.48     1.30      .49      .37      .64      .47      .99      .74      .03     2.06
             ( .1152) ( .2542) ( .4829) ( .5432) ( .4245) ( .4916) ( .3197) ( .3901) ( .8641) ( .1512)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       2.78
             ( .0955)

  1993.00        .11     1.48
             ( .7407) ( .2243)

  1994.00        .00     1.27      .01
             ( .9864) ( .2599) ( .9268)

  1995.00        .36      .16      .13      .19
             ( .5495) ( .6925) ( .7202) ( .6597)

  1996.00       3.92     7.74     3.08     3.53     7.47
             ( .0476) ( .0054) ( .0794) ( .0604) ( .0063)

  1997.00        .26     1.71      .09      .08      .79     3.34
             ( .6076) ( .1914) ( .7696) ( .7783) ( .3745) ( .0678)

  1998.00        .18      .24      .98      .26      .00     7.37      .64
             ( .6690) ( .6254) ( .3230) ( .6084) ( .9723) ( .0066) ( .4234)

  1999.00      10.83     4.11     8.62     9.31     5.42    28.35    11.35     3.38
             ( .0010) ( .0426) ( .0033) ( .0023) ( .0199) ( .0000) ( .0008) ( .0659)

  2000.00       4.15     1.99     1.84     2.06      .01     9.65     2.45      .00     2.79
             ( .0416) ( .1583) ( .1748) ( .1508) ( .9080) ( .0019) ( .1172) ( .9933) ( .0949)

  2001.00       6.66     3.71     5.25      .89      .62     7.59      .50      .17      .89      .03
             ( .0099) ( .0542) ( .0220) ( .3468) ( .4327) ( .0059) ( .4795) ( .6822) ( .3452) ( .8616)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       3.04
             ( .0814)

  1993.00        .91      .57
             ( .3400) ( .4491)

  1994.00       2.91      .00      .89
             ( .0882) ( .9692) ( .3462)

  1995.00        .09     4.63      .67     3.17
             ( .7652) ( .0315) ( .4146) ( .0748)

  1996.00        .00     2.60      .16     1.78      .01
             ( .9828) ( .1068) ( .6905) ( .1819) ( .9426)

  1997.00        .09     3.89      .07     1.90      .01      .71
             ( .7586) ( .0485) ( .7914) ( .1678) ( .9387) ( .3994)

  1998.00       8.24     2.06    10.63     2.86    11.64     4.15     6.09
             ( .0041) ( .1516) ( .0011) ( .0908) ( .0006) ( .0416) ( .0136)

  1999.00       2.27      .18     3.37      .01     1.89      .24      .72     5.57
             ( .1316) ( .6751) ( .0662) ( .9042) ( .1692) ( .6231) ( .3958) ( .0183)

  2000.00       4.93     2.38     4.95      .91     1.88     1.71     1.73     5.08      .00
             ( .0264) ( .1233) ( .0261) ( .3396) ( .1699) ( .1908) ( .1887) ( .0243) ( .9710)

  2001.00       4.58      .59      .57      .31      .05      .00      .91     5.38      .43     4.59
             ( .0323) ( .4412) ( .4492) ( .5774) ( .8156) ( .9451) ( .3414) ( .0203) ( .5141) ( .0322)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       2.06
             ( .1508)

  1993.00      13.28     6.16
             ( .0003) ( .0131)

  1994.00       1.15      .01     5.17
             ( .2830) ( .9232) ( .0230)

  1995.00       5.41     1.15     1.26      .77
             ( .0200) ( .2832) ( .2619) ( .3792)

  1996.00       4.66      .34     1.82      .24      .32
             ( .0308) ( .5580) ( .1770) ( .6238) ( .5732)

  1997.00       4.25      .79     1.30      .16      .39      .32
             ( .0393) ( .3740) ( .2533) ( .6901) ( .5318) ( .5735)

  1998.00       2.20      .12     1.61      .01      .45     1.30      .99
             ( .1384) ( .7296) ( .2038) ( .9311) ( .5007) ( .2549) ( .3187)

  1999.00       6.04      .32      .08      .23      .09      .61      .18      .02
             ( .0140) ( .5716) ( .7743) ( .6312) ( .7681) ( .4337) ( .6696) ( .8944)

  2000.00      10.28     1.54      .03      .85      .44      .71      .04      .04      .28
             ( .0013) ( .2152) ( .8542) ( .3560) ( .5085) ( .4011) ( .8496) ( .8336) ( .5993)

  2001.00      13.49     5.59      .48      .81      .18     2.04      .00      .03      .25      .23
             ( .0002) ( .0181) ( .4868) ( .3676) ( .6719) ( .1533) ( .9813) ( .8656) ( .6138) ( .6317)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .01
             ( .9414)

  1993.00       2.33     3.38
             ( .1268) ( .0660)

  1994.00        .23      .00     5.20
             ( .6280) ( .9922) ( .0225)

  1995.00        .04      .44     4.43      .12
             ( .8499) ( .5063) ( .0353) ( .7251)

  1996.00       3.31     1.22    13.21     1.22     3.34
             ( .0689) ( .2690) ( .0003) ( .2695) ( .0678)

  1997.00       1.00      .08     6.39      .15      .63      .73
             ( .3166) ( .7829) ( .0115) ( .7024) ( .4291) ( .3927)

  1998.00       2.41     5.53      .01     3.70     1.89    10.88     5.28
             ( .1206) ( .0186) ( .9229) ( .0543) ( .1692) ( .0010) ( .0215)

  1999.00        .56     3.57     2.63      .18      .07     5.48     2.38     2.31
             ( .4558) ( .0587) ( .1047) ( .6673) ( .7901) ( .0193) ( .1225) ( .1286)

  2000.00       2.69     6.68      .61      .00      .95     7.31     6.10     1.18      .14
             ( .1007) ( .0097) ( .4342) ( .9728) ( .3294) ( .0069) ( .0135) ( .2777) ( .7129)

  2001.00       1.16      .41     1.92     1.24      .08     1.29      .52     4.46      .27     3.99
             ( .2824) ( .5219) ( .1655) ( .2649) ( .7719) ( .2554) ( .4702) ( .0346) ( .6002) ( .0457)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .67
             ( .4116)

  1993.00        .02      .93
             ( .8757) ( .3343)

  1994.00       2.39     6.21     3.44
             ( .1217) ( .0127) ( .0637)

  1995.00       2.35     6.59     5.16      .13
             ( .1251) ( .0103) ( .0231) ( .7146)

  1996.00       5.24     8.17     8.09      .85      .87
             ( .0221) ( .0043) ( .0044) ( .3573) ( .3507)

  1997.00        .05      .15      .23     2.16     2.32     6.26
             ( .8206) ( .6939) ( .6298) ( .1416) ( .1275) ( .0123)

  1998.00        .01      .68     1.06     1.02     1.77     5.24      .25
             ( .9107) ( .4079) ( .3041) ( .3132) ( .1829) ( .0221) ( .6206)

  1999.00        .05     1.32     2.70      .68     1.34     1.70     1.51     1.36
             ( .8147) ( .2504) ( .1004) ( .4081) ( .2469) ( .1921) ( .2194) ( .2430)

  2000.00       3.76      .00      .70     5.46     3.57     5.30      .26      .01      .01
             ( .0523) ( .9591) ( .4031) ( .0194) ( .0588) ( .0213) ( .6110) ( .9425) ( .9429)

  2001.00       9.78     3.00      .67    11.63    12.62    17.73     2.99     3.50     1.34      .88
             ( .0018) ( .0833) ( .4138) ( .0006) ( .0004) ( .0000) ( .0839) ( .0613) ( .2477) ( .3488)






Temporary.

* Amalgam on molars.

Select if (toothtyp=3 and range(maintrt,1401,1404)).

KM
  time  by  yearplac/STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:24
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 208162
Syntax KM
time by yearplac/STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:09.73




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3461.00      2792.00      2299.00      1835.00
 Standard Error        .            .            .            .            .            .          72.88        57.16        44.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1497.00      1145.00       881.00       602.00       319.00
 Standard Error      35.93        29.02        22.47        19.04          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3009.00      2513.00      2012.00
 Standard Error        .            .            .            .            .            .            .          59.13        51.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1579.00      1200.00       861.00       578.00       342.00
 Standard Error      41.83        33.62        25.47        17.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2745.00      2268.00      1792.00
 Standard Error        .            .            .            .            .            .            .          58.49        47.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1442.00      1106.00       797.00       546.00       262.00
 Standard Error      36.72        31.37        23.76        18.57          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2863.00      2321.00      1868.00
 Standard Error        .            .            .            .            .            .            .          65.74        52.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1465.00      1112.00       796.00       542.00       260.00
 Standard Error      43.33        34.42        25.88        19.68          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2316.00      1841.00
 Standard Error        .            .            .            .            .            .            .            .          55.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1477.00      1161.00       909.00       589.00       305.00
 Standard Error      41.98        31.75        27.90        24.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1938.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1561.00      1198.00       881.00       596.00       310.00
 Standard Error      49.75        40.93        31.77        24.61          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1552.00      1214.00       864.00       567.00       289.00
 Standard Error        .          40.80        33.38        24.22          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .        1265.00       896.00       573.00       334.00
 Standard Error        .            .          38.12        25.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         921.00       603.00       338.00
 Standard Error        .            .            .          27.30          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         605.00       314.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         344.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3506.00      2834.00      2315.00      1880.00      1521.00
 Standard Error        .            .            .            .            .          85.28        65.92        52.63        44.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1171.00       919.00       673.00       446.00       245.00
 Standard Error      35.20        26.41        22.31        16.47          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3007.00      2495.00      2016.00      1623.00
 Standard Error        .            .            .            .            .            .          70.46        59.53        48.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1258.00       944.00       689.00       441.00       223.00
 Standard Error      40.69        31.18        24.23        18.55          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2984.00      2443.00      1958.00      1548.00
 Standard Error        .            .            .            .            .            .          73.40        61.08        50.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1181.00       900.00       655.00       423.00       196.00
 Standard Error      38.83        28.60        22.97        18.19          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2450.00      1973.00      1558.00
 Standard Error        .            .            .            .            .            .            .          60.66        49.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1209.00       912.00       644.00       425.00       213.00
 Standard Error      38.61        30.65        23.22        16.99          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2321.00      1914.00      1527.00
 Standard Error        .            .            .            .            .            .            .          56.59        50.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1170.00       876.00       620.00       406.00       190.00
 Standard Error      41.02        31.63        23.69        17.97          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1915.00      1475.00
 Standard Error        .            .            .            .            .            .            .            .          51.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1156.00       869.00       608.00       398.00       192.00
 Standard Error      38.12        31.45        23.73        17.24          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1562.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1191.00       921.00       643.00       406.00       196.00
 Standard Error      42.23        32.71        27.00        19.27          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1210.00       923.00       624.00       419.00       190.00
 Standard Error        .          34.72        26.32        18.72          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         892.00       619.00       390.00       204.00
 Standard Error        .            .          26.90        18.36          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         645.00       385.00       187.00
 Standard Error        .            .            .          20.75          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         204.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3121.00      2583.00      2092.00      1673.00      1295.00
 Standard Error        .            .            .            .            .          85.81        73.58        61.44        46.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1035.00       804.00       598.00       398.00       197.00
 Standard Error      33.43        27.26        22.16        18.02          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3507.00      2884.00      2322.00      1816.00      1454.00
 Standard Error        .            .            .            .            .          98.68        86.24        67.56        53.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1088.00       835.00       621.00       389.00       203.00
 Standard Error      42.24        28.82        24.39        18.77          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3131.00      2563.00      2093.00      1686.00      1326.00
 Standard Error        .            .            .            .            .          89.02        72.74        61.34        49.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1032.00       761.00       544.00       340.00       168.00
 Standard Error      39.76        31.41        24.08        17.44          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2579.00      2013.00      1599.00      1261.00
 Standard Error        .            .            .            .            .            .          81.78        60.13        48.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              964.00       720.00       511.00       338.00       160.00
 Standard Error      38.14        29.33        21.68        16.59          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2471.00      1959.00      1576.00      1236.00
 Standard Error        .            .            .            .            .            .          74.84        58.84        49.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              935.00       715.00       494.00       311.00       175.00
 Standard Error      37.64        28.99        23.56        15.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1974.00      1556.00      1197.00
 Standard Error        .            .            .            .            .            .            .          62.15        47.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              936.00       666.00       445.00       292.00       133.00
 Standard Error      38.31        32.45        21.84        15.11          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1620.00      1249.00
 Standard Error        .            .            .            .            .            .            .            .          54.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              923.00       707.00       517.00       343.00       174.00
 Standard Error      39.28        27.24        21.41        16.70          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1278.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              949.00       695.00       480.00       289.00       137.00
 Standard Error      42.54        31.38        23.87        16.72          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              873.00       644.00       452.00       265.00       126.00
 Standard Error        .          29.35        23.62        16.92          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         496.00       295.00       143.00
 Standard Error        .            .            .          18.54          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         142.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3480.00      2841.00      2315.00      1936.00      1495.00      1181.00
 Standard Error        .            .            .            .         140.41       109.34        93.78        81.94        59.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              919.00       719.00       532.00       372.00       185.00
 Standard Error      44.24        33.72        27.00        22.45          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3206.00      2554.00      2112.00      1736.00      1421.00      1127.00
 Standard Error        .            .            .            .         119.66        87.41        71.12        61.19        53.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              857.00       642.00       467.00       315.00       147.00
 Standard Error      43.06        31.63        23.20        18.88          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2487.00      2016.00      1604.00      1256.00      1024.00
 Standard Error        .            .            .            .            .          96.72        80.56        59.55        43.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              812.00       608.00       453.00       287.00       167.00
 Standard Error      37.88        30.05        23.56        17.80          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2463.00      2045.00      1577.00      1245.00       987.00
 Standard Error        .            .            .            .            .         101.85        89.55        63.46        48.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              771.00       576.00       381.00       252.00       143.00
 Standard Error      39.73        33.97        25.00        15.31          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2534.00      2208.00      1726.00      1358.00      1051.00
 Standard Error        .            .            .            .            .          90.97        96.19        74.02        57.68

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              803.00       590.00       404.00       268.00       131.00
 Standard Error      45.12        35.35        25.42        17.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2058.00      1685.00      1328.00      1065.00
 Standard Error        .            .            .            .            .            .          82.74        68.04        52.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              824.00       616.00       447.00       279.00       151.00
 Standard Error      43.81        33.90        26.67        19.57          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1743.00      1316.00       994.00
 Standard Error        .            .            .            .            .            .            .          77.22        52.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              778.00       580.00       399.00       268.00       123.00
 Standard Error      37.87        31.56        23.32        17.17          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1152.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       616.00       424.00       277.00       137.00
 Standard Error      52.38        38.47        26.84        18.91          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              836.00       581.00       412.00       240.00       111.00
 Standard Error        .          37.98        26.83        19.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         564.00       379.00       237.00       112.00
 Standard Error        .            .          24.66        17.23          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         264.00       147.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3144.00      2391.00      1979.00      1484.00      1153.00
 Standard Error        .            .            .            .            .         188.30       140.26       122.31        81.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              909.00       704.00       490.00       366.00       183.00
 Standard Error      60.23        50.64        36.22        26.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3113.00      2427.00      1875.00      1524.00      1253.00      1019.00
 Standard Error        .            .            .            .         190.67       140.27        92.88        71.61        59.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              812.00       641.00       462.00       322.00       180.00
 Standard Error      48.13        41.21        33.97        24.10          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2674.00      2149.00      1736.00      1390.00      1129.00
 Standard Error        .            .            .            .            .         147.21       115.43        90.76        71.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              873.00       628.00       448.00       287.00       182.00
 Standard Error      66.50        51.22        36.34        24.52          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2409.00      1986.00      1604.00      1243.00       964.00
 Standard Error        .            .            .            .            .         121.59       110.30        92.71        71.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              720.00       559.00       377.00       244.00       137.00
 Standard Error      51.88        39.95        32.64        20.95          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2209.00      1700.00      1310.00      1022.00
 Standard Error        .            .            .            .            .            .         133.10        97.54        70.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              788.00       609.00       408.00       240.00       158.00
 Standard Error      52.14        44.14        37.74        21.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1870.00      1548.00      1306.00      1052.00
 Standard Error        .            .            .            .            .            .          86.67        75.16        75.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              772.00       594.00       405.00       252.00       178.00
 Standard Error      61.04        45.36        36.32        20.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1795.00      1429.00      1092.00
 Standard Error        .            .            .            .            .            .            .          92.19        81.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              832.00       579.00       446.00       279.00       173.00
 Standard Error      65.65        45.25        31.39        23.80          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1224.00       952.00
 Standard Error        .            .            .            .            .            .            .            .          68.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              732.00       525.00       385.00       256.00       145.00
 Standard Error      56.71        41.83        28.48        22.09          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1032.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              798.00       575.00       383.00       239.00       139.00
 Standard Error      55.99        48.40        35.35        21.02          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              684.00       456.00       332.00       201.00       124.00
 Standard Error        .          43.09        28.23        19.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         256.00       108.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3968.00      3050.00      2643.00      2105.00      1868.00      1516.00      1180.00       948.00
 Standard Error        .            .         267.91       244.83       196.74       151.84       163.58       129.73        83.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              796.00       561.00       441.00       318.00       168.00
 Standard Error      77.88        64.90        40.56        37.26          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2602.00      2166.00      1632.00      1247.00      1024.00       904.00
 Standard Error        .            .            .            .         243.68       217.93       136.87        79.17        62.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              728.00       519.00       393.00       279.00       174.00
 Standard Error      73.45        59.56        36.97        28.25          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2731.00      2214.00      1651.00      1168.00       893.00
 Standard Error        .            .            .            .            .         253.80       249.72       166.41        94.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              705.00       525.00       373.00       193.00       161.00
 Standard Error      73.33        59.12        50.98        26.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2604.00      2031.00      1482.00      1103.00       927.00
 Standard Error        .            .            .            .            .         256.07       202.95       122.96        73.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              743.00       605.00       392.00       232.00        79.00
 Standard Error      60.87        59.49        59.76        39.74          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2235.00      1970.00      1561.00      1257.00       907.00
 Standard Error        .            .            .            .            .         166.55       165.41       151.61       105.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              755.00       541.00       398.00       244.00       153.00
 Standard Error      72.91        64.60        48.42        31.98          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1954.00      1546.00      1295.00      1098.00
 Standard Error        .            .            .            .            .            .         139.86        92.38        78.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              875.00       625.00       416.00       280.00       152.00
 Standard Error      84.90        76.47        53.38        32.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1735.00      1593.00      1364.00      1091.00
 Standard Error        .            .            .            .            .            .          87.50       113.08       115.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              800.00       599.00       419.00       273.00       134.00
 Standard Error      99.04        66.91        49.74        37.18          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1179.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              911.00       705.00       435.00       227.00        99.00
 Standard Error      89.40        78.34        69.95        40.66          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         742.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              573.00       449.00       344.00       200.00       103.00
 Standard Error      55.18        40.19        38.36        31.19          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         527.00       372.00       212.00       127.00
 Standard Error        .            .          48.38        31.62          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         201.00       105.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           66067      16431       49636         75.13
  YEARPLAC        1991.00          8490       2948        5542         65.28
  YEARPLAC        1992.00          8574       2800        5774         67.34
  YEARPLAC        1993.00          7882       2594        5288         67.09
  YEARPLAC        1994.00          6943       2096        4847         69.81
  YEARPLAC        1995.00          6061       1677        4384         72.33
  YEARPLAC        1996.00          5302       1270        4032         76.05
  YEARPLAC        1997.00          5445       1156        4289         78.77
  YEARPLAC        1998.00          4899        825        4074         83.16
  YEARPLAC        1999.00          4517        595        3922         86.83
  YEARPLAC        2000.00          4274        361        3913         91.55
  YEARPLAC        2001.00          3680        109        3571         97.04

PATAGEG2       30 to 39           57218      16663       40555         70.88
  YEARPLAC        1991.00          6204       2571        3633         58.56
  YEARPLAC        1992.00          5780       2279        3501         60.57
  YEARPLAC        1993.00          5821       2192        3629         62.34
  YEARPLAC        1994.00          5906       2081        3825         64.76
  YEARPLAC        1995.00          5293       1804        3489         65.92
  YEARPLAC        1996.00          5290       1648        3642         68.85
  YEARPLAC        1997.00          4863       1328        3535         72.69
  YEARPLAC        1998.00          4883       1142        3741         76.61
  YEARPLAC        1999.00          4651        875        3776         81.19
  YEARPLAC        2000.00          4358        552        3806         87.33
  YEARPLAC        2001.00          4169        191        3978         95.42

PATAGEG2       40 to 49           42047      13742       28305         67.32
  YEARPLAC        1991.00          4455       1946        2509         56.32
  YEARPLAC        1992.00          4464       1813        2651         59.39
  YEARPLAC        1993.00          4109       1712        2397         58.34
  YEARPLAC        1994.00          4050       1614        2436         60.15
  YEARPLAC        1995.00          3874       1501        2373         61.25
  YEARPLAC        1996.00          3806       1377        2429         63.82
  YEARPLAC        1997.00          3804       1217        2587         68.01
  YEARPLAC        1998.00          3772       1059        2713         71.92
  YEARPLAC        1999.00          3369        818        2551         75.72
  YEARPLAC        2000.00          3243        503        2740         84.49
  YEARPLAC        2001.00          3101        182        2919         94.13

PATAGEG2       50 to 59           24350       8590       15760         64.72
  YEARPLAC        1991.00          2154       1024        1130         52.46
  YEARPLAC        1992.00          2579       1205        1374         53.28
  YEARPLAC        1993.00          2387       1126        1261         52.83
  YEARPLAC        1994.00          2150        992        1158         53.86
  YEARPLAC        1995.00          2082        869        1213         58.26
  YEARPLAC        1996.00          2062        824        1238         60.04
  YEARPLAC        1997.00          2327        840        1487         63.90
  YEARPLAC        1998.00          2059        620        1439         69.89
  YEARPLAC        1999.00          2047        519        1528         74.65
  YEARPLAC        2000.00          2173        412        1761         81.04
  YEARPLAC        2001.00          2330        159        2171         93.18

PATAGEG2       60 to 69           12478       4586        7892         63.25
  YEARPLAC        1991.00          1152        513         639         55.47
  YEARPLAC        1992.00          1219        592         627         51.44
  YEARPLAC        1993.00          1126        531         595         52.84
  YEARPLAC        1994.00          1193        564         629         52.72
  YEARPLAC        1995.00          1203        508         695         57.77
  YEARPLAC        1996.00          1095        469         626         57.17
  YEARPLAC        1997.00          1192        422         770         64.60
  YEARPLAC        1998.00          1107        373         734         66.31
  YEARPLAC        1999.00          1172        315         857         73.12
  YEARPLAC        2000.00          1025        225         800         78.05
  YEARPLAC        2001.00           994         74         920         92.56



PATAGEG2       70 or older         6002       2104        3898         64.95
  YEARPLAC        1991.00           504        241         263         52.18
  YEARPLAC        1992.00           536        255         281         52.43
  YEARPLAC        1993.00           529        226         303         57.28
  YEARPLAC        1994.00           547        236         311         56.86
  YEARPLAC        1995.00           485        209         276         56.91
  YEARPLAC        1996.00           605        240         365         60.33
  YEARPLAC        1997.00           526        197         329         62.55
  YEARPLAC        1998.00           595        176         419         70.42
  YEARPLAC        1999.00           526        163         363         69.01
  YEARPLAC        2000.00           534        108         426         79.78
  YEARPLAC        2001.00           615         53         562         91.38

Overall                          208162      62116      146046         70.16


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank          23.60        10          .0087


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank           5.32        10          .8689


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank          28.44        10          .0015


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank          11.77        10          .3008


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          25.29        10          .0048


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank          13.39        10          .2026







 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       4.27
             ( .0388)

  1993.00       1.10     9.44
             ( .2945) ( .0021)

  1994.00        .00     4.71      .61
             ( .9920) ( .0301) ( .4361)

  1995.00        .20     2.77     1.66      .47
             ( .6511) ( .0959) ( .1977) ( .4928)

  1996.00       1.71      .43     4.68     1.91     1.28
             ( .1905) ( .5144) ( .0304) ( .1675) ( .2579)

  1997.00       1.62      .16     6.48     2.90     1.87      .01
             ( .2029) ( .6906) ( .0109) ( .0883) ( .1715) ( .9251)

  1998.00       4.39     1.19    10.26     8.05     3.25      .95     1.51
             ( .0361) ( .2757) ( .0014) ( .0046) ( .0714) ( .3303) ( .2196)

  1999.00       1.65     1.02     7.92     7.39      .45      .58     1.44      .15
             ( .1995) ( .3123) ( .0049) ( .0066) ( .5042) ( .4464) ( .2301) ( .6955)

  2000.00        .41      .43     5.14     5.36      .52      .12     1.43      .49      .03
             ( .5228) ( .5129) ( .0234) ( .0206) ( .4727) ( .7244) ( .2321) ( .4850) ( .8718)

  2001.00        .02     1.01     2.29     3.42      .37      .14     1.43      .42      .00      .34
             ( .8880) ( .3139) ( .1299) ( .0643) ( .5408) ( .7098) ( .2324) ( .5170) ( .9729) ( .5613)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       2.53
             ( .1118)

  1993.00        .67      .35
             ( .4138) ( .5558)

  1994.00       1.45      .04      .26
             ( .2288) ( .8488) ( .6087)

  1995.00        .03     3.06      .62     1.07
             ( .8633) ( .0804) ( .4314) ( .3007)

  1996.00        .00     2.28      .21      .44      .00
             ( .9680) ( .1313) ( .6470) ( .5086) ( .9716)

  1997.00        .14      .76      .05      .05      .38     1.48
             ( .7093) ( .3818) ( .8258) ( .8154) ( .5387) ( .2235)

  1998.00        .25      .64      .31      .01      .51     1.68      .12
             ( .6147) ( .4221) ( .5779) ( .9117) ( .4747) ( .1945) ( .7339)

  1999.00        .55     1.67      .00      .19      .08      .46      .09      .17
             ( .4583) ( .1968) ( .9839) ( .6654) ( .7816) ( .4998) ( .7685) ( .6820)

  2000.00       1.46     1.80      .16      .03      .37      .83      .02      .04      .21
             ( .2272) ( .1794) ( .6937) ( .8613) ( .5405) ( .3612) ( .8761) ( .8378) ( .6441)

  2001.00       4.09     2.09      .03      .19      .37     1.08      .77      .34      .16     1.51
             ( .0431) ( .1478) ( .8589) ( .6593) ( .5422) ( .2984) ( .3813) ( .5592) ( .6900) ( .2189)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       4.48
             ( .0342)

  1993.00        .15     6.52
             ( .6981) ( .0107)

  1994.00        .33     6.83      .00
             ( .5683) ( .0090) ( .9915)

  1995.00       2.96    12.93     1.63      .37
             ( .0855) ( .0003) ( .2023) ( .5421)

  1996.00       4.27    13.15     2.66      .43      .00
             ( .0387) ( .0003) ( .1026) ( .5099) ( .9501)

  1997.00       1.01     6.61      .52      .12      .75     1.19
             ( .3141) ( .0101) ( .4706) ( .7251) ( .3854) ( .2758)

  1998.00       2.59    11.56     1.97      .14      .00      .25      .22
             ( .1076) ( .0007) ( .1608) ( .7098) ( .9904) ( .6161) ( .6379)

  1999.00      11.35    18.50     6.97     2.44     1.04      .57     1.46     1.50
             ( .0008) ( .0000) ( .0083) ( .1185) ( .3081) ( .4516) ( .2272) ( .2212)

  2000.00       6.32     7.85      .60      .00      .25     2.56      .00      .97     3.91
             ( .0119) ( .0051) ( .4367) ( .9636) ( .6190) ( .1098) ( .9500) ( .3235) ( .0479)

  2001.00       6.15     8.54      .13      .02      .02     1.46      .43     1.29     4.14     1.06
             ( .0131) ( .0035) ( .7186) ( .8878) ( .8981) ( .2264) ( .5113) ( .2566) ( .0420) ( .3033)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       1.42
             ( .2327)

  1993.00       4.63      .33
             ( .0315) ( .5683)

  1994.00       7.48     1.49      .18
             ( .0062) ( .2228) ( .6718)

  1995.00       2.41      .01      .69     1.24
             ( .1207) ( .9212) ( .4048) ( .2649)

  1996.00       5.34      .33      .16      .30      .27
             ( .0208) ( .5656) ( .6889) ( .5846) ( .6047)

  1997.00       4.15      .32      .34     1.27      .02      .01
             ( .0417) ( .5704) ( .5588) ( .2601) ( .8829) ( .9316)

  1998.00        .70      .09     3.05     4.38     1.26     1.25     2.20
             ( .4012) ( .7692) ( .0807) ( .0364) ( .2609) ( .2627) ( .1384)

  1999.00       2.67      .13      .42     1.58      .26      .09     1.58      .17
             ( .1019) ( .7166) ( .5159) ( .2094) ( .6133) ( .7608) ( .2087) ( .6788)

  2000.00      12.71     4.55     1.55      .00      .45     1.28      .09     1.33      .24
             ( .0004) ( .0330) ( .2127) ( .9660) ( .5002) ( .2580) ( .7681) ( .2488) ( .6232)

  2001.00      10.66     1.53      .79      .09      .03      .35      .19      .12      .50     1.61
             ( .0011) ( .2159) ( .3729) ( .7677) ( .8641) ( .5514) ( .6589) ( .7265) ( .4779) ( .2048)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00       6.71
             ( .0096)

  1993.00       2.68      .65
             ( .1018) ( .4206)

  1994.00       7.80      .23     1.94
             ( .0052) ( .6336) ( .1639)

  1995.00       1.96      .76      .02     1.32
             ( .1619) ( .3849) ( .8983) ( .2506)

  1996.00       8.75      .15     2.76      .12     1.98
             ( .0031) ( .7014) ( .0966) ( .7310) ( .1599)

  1997.00        .92     1.73      .01     1.45      .27     1.83
             ( .3380) ( .1879) ( .9309) ( .2293) ( .6064) ( .1758)

  1998.00       3.96      .01     1.45      .00      .20      .01     1.25
             ( .0465) ( .9057) ( .2287) ( .9668) ( .6533) ( .9069) ( .2626)

  1999.00       3.21      .10     1.12      .36      .01      .05      .44      .36
             ( .0732) ( .7572) ( .2896) ( .5506) ( .9147) ( .8248) ( .5087) ( .5478)

  2000.00      13.19     8.46     6.38     1.46     4.64     3.80     4.56      .97     2.80
             ( .0003) ( .0036) ( .0115) ( .2264) ( .0312) ( .0511) ( .0327) ( .3256) ( .0945)

  2001.00       7.06     3.40     2.00      .04      .15      .72      .99      .13      .12      .93
             ( .0079) ( .0651) ( .1572) ( .8516) ( .7006) ( .3965) ( .3208) ( .7146) ( .7295) ( .3348)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .00
             ( .9718)

  1993.00       1.49     1.86
             ( .2222) ( .1731)

  1994.00        .67     1.13      .02
             ( .4132) ( .2872) ( .8882)

  1995.00        .00      .28      .31      .16
             ( .9550) ( .5975) ( .5773) ( .6923)

  1996.00        .80     1.91      .01      .19      .34
             ( .3705) ( .1665) ( .9077) ( .6618) ( .5571)

  1997.00        .03     1.31      .00      .20      .02      .03
             ( .8583) ( .2528) ( .9892) ( .6539) ( .8745) ( .8585)

  1998.00       1.68     6.57     2.52     3.23     1.52      .61      .42
             ( .1948) ( .0104) ( .1123) ( .0724) ( .2177) ( .4344) ( .5176)

  1999.00       1.81      .30      .31      .61      .73     4.61     3.52     5.80
             ( .1781) ( .5858) ( .5803) ( .4345) ( .3919) ( .0318) ( .0606) ( .0161)

  2000.00        .60      .02      .05      .25      .05     1.13      .59     1.57     1.72
             ( .4369) ( .8865) ( .8270) ( .6194) ( .8149) ( .2881) ( .4414) ( .2109) ( .1902)

  2001.00       3.09     3.21      .35      .24      .89     1.86     1.55      .60      .04      .17
             ( .0787) ( .0732) ( .5548) ( .6237) ( .3463) ( .1729) ( .2125) ( .4380) ( .8338) ( .6808)






Temporary.

* Glass ionomer on molars.

Select if (toothtyp=3 and maintrt = 1426).

KM
  time  by  yearplac/STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:34
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 20370
Syntax KM
time by yearplac/STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:06.03




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3414.00      2668.00      2493.00      2224.00      1779.00      1484.00      1263.00      1134.00
 Standard Error        .         409.16       352.20       175.87       253.72       275.41       184.52       125.96       111.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              929.00       697.00       581.00       393.00       245.00
 Standard Error     146.47        91.49        80.73        74.61          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3203.00      2679.00      2087.00      1671.00      1487.00      1171.00       977.00
 Standard Error        .            .            .         415.83       330.62       197.97       142.21       151.37        85.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              866.00       623.00       525.00       343.00       196.00
 Standard Error      92.39        79.67        58.63        58.65          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2997.00      2724.00      2435.00      2051.00      1544.00      1368.00
 Standard Error        .            .            .            .         175.66       202.71       254.53       191.26       132.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1030.00       804.00       595.00       291.00       173.00
 Standard Error     143.06       100.28       101.85        66.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2614.00      1824.00      1605.00      1407.00      1062.00
 Standard Error        .            .            .            .            .         295.21       133.34       163.17       180.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              740.00       554.00       408.00       287.00       138.00
 Standard Error     128.59        72.88        54.70        44.37          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2294.00      1862.00      1585.00      1314.00      1090.00
 Standard Error        .            .            .            .            .         226.93       167.67       152.36       144.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              805.00       563.00       458.00       272.00       132.00
 Standard Error     131.46        82.25        59.00        55.31          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2062.00      1857.00      1481.00      1171.00       869.00
 Standard Error        .            .            .            .            .         194.19       218.37       190.82       135.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              711.00       586.00       446.00       270.00       128.00
 Standard Error      80.24        68.36        67.09        55.51          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1384.00      1117.00       908.00
 Standard Error        .            .            .            .            .            .            .         131.57        95.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              754.00       603.00       419.00       223.00       111.00
 Standard Error      80.64        70.89        75.29        53.60          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1403.00      1105.00
 Standard Error        .            .            .            .            .            .            .            .         108.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              898.00       723.00       546.00       378.00       211.00
 Standard Error     111.61        86.06        77.84        59.39          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              795.00       613.00       357.00       210.00       113.00
 Standard Error        .         105.11        80.60        42.87          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         610.00       349.00       212.00       119.00
 Standard Error        .            .          72.13        38.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .            .         132.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2978.00      2395.00      1849.00      1537.00      1337.00      1103.00       802.00
 Standard Error        .            .            .         345.32       267.14       158.53       130.10       157.40       142.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              580.00       436.00       330.00       217.00        89.00
 Standard Error      91.23        58.00        45.81        43.16          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3083.00      2579.00      2117.00      1565.00      1381.00      1085.00       905.00
 Standard Error        .            .            .         301.37       299.58       222.92       145.51       130.24        97.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              722.00       471.00       340.00       191.00       134.00
 Standard Error     106.75        87.09        57.25        34.11          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3105.00      2574.00      2125.00      1631.00      1231.00       905.00       657.00
 Standard Error        .            .            .         281.78       275.48       266.70       200.79       148.93        95.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              510.00       391.00       285.00       188.00        86.00
 Standard Error      62.76        49.39        39.43        32.50          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2288.00      1794.00      1318.00      1042.00       841.00
 Standard Error        .            .            .            .            .         245.59       191.72       117.83        87.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              689.00       482.00       317.00       203.00       116.00
 Standard Error      80.39        71.10        46.93        29.78          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1990.00      1613.00      1267.00      1006.00       771.00       678.00
 Standard Error        .            .            .            .         187.06       156.60       126.52        80.18        55.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              523.00       400.00       232.00       162.00        66.00
 Standard Error      59.35        56.99        40.70        24.30          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1922.00      1540.00      1308.00      1055.00       838.00       627.00
 Standard Error        .            .            .            .         166.90       133.75       117.55       105.26        77.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              503.00       381.00       254.00       179.00        91.00
 Standard Error      52.53        49.24        35.77        23.30          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1386.00      1064.00       840.00       672.00
 Standard Error        .            .            .            .            .            .         142.97       100.51       100.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              432.00       351.00       228.00       181.00        82.00
 Standard Error      74.98        44.20        31.86        23.49          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1120.00       884.00       666.00
 Standard Error        .            .            .            .            .            .            .         111.55        91.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              496.00       364.00       238.00       182.00        72.00
 Standard Error      62.20        48.37        32.84        23.84          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         889.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              701.00       507.00       373.00       184.00        60.00
 Standard Error      77.38        65.94        53.51        41.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         706.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              526.00       404.00       281.00       181.00        75.00
 Standard Error      50.38        45.13        37.90        28.61          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         237.00       161.00        91.00
 Standard Error        .            .            .          25.50          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2829.00      2464.00      2206.00      1865.00      1479.00      1262.00       893.00       756.00
 Standard Error        .         432.21       211.62       213.02       244.75       204.77       176.87       149.53        80.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              597.00       433.00       343.00       227.00       129.00
 Standard Error      83.65        61.59        42.55        38.37          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3144.00      2508.00      1808.00      1578.00      1324.00      1045.00       892.00       720.00
 Standard Error        .            .         385.30       265.00       148.28       157.62       128.82        86.70        88.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              548.00       385.00       301.00       189.00       102.00
 Standard Error      77.98        53.96        37.63        32.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2883.00      2512.00      1859.00      1442.00      1117.00       884.00       669.00
 Standard Error        .            .            .         291.38       286.87       194.41       137.06       106.37        80.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              529.00       399.00       263.00       178.00        97.00
 Standard Error      58.77        51.38        39.05        24.86          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2628.00      2042.00      1772.00      1439.00      1089.00       796.00       621.00
 Standard Error        .            .            .         226.92       163.09       193.47       165.99       122.62        87.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              429.00       320.00       237.00       168.00        49.00
 Standard Error      68.57        39.65        30.00        28.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2125.00      1591.00      1220.00       931.00       734.00
 Standard Error        .            .            .            .            .         249.17       163.78       117.42        88.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              536.00       427.00       317.00       190.00       119.00
 Standard Error      64.04        42.97        41.18        28.57          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1726.00      1334.00      1003.00       873.00       655.00       505.00
 Standard Error        .            .            .            .         175.99       110.45        80.83        82.07        59.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              375.00       278.00       187.00       117.00        52.00
 Standard Error      46.14        35.06        27.53        18.75          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1764.00      1415.00      1169.00       859.00       673.00       546.00
 Standard Error        .            .            .            .         134.12       135.73       115.99        72.05        50.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              455.00       299.00       210.00       145.00        71.00
 Standard Error      50.52        46.13        26.68        21.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1398.00      1081.00       869.00       644.00       488.00
 Standard Error        .            .            .            .            .         119.62        96.78        83.20        54.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              377.00       294.00       219.00       151.00        64.00
 Standard Error      36.73        27.66        22.11        21.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         855.00       722.00
 Standard Error        .            .            .            .            .            .            .            .          69.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              551.00       401.00       315.00       224.00        91.00
 Standard Error      66.23        45.72        32.28        33.77          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         672.00       553.00
 Standard Error        .            .            .            .            .            .            .            .          49.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              459.00       343.00       210.00       134.00        61.00
 Standard Error      45.52        46.50        37.07        21.58          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         299.00       182.00        66.00
 Standard Error        .            .            .          39.13          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3252.00      2817.00      2198.00      1753.00      1449.00      1293.00      1122.00       889.00
 Standard Error        .         423.93       378.17       403.66       304.02       177.04       149.73       151.26       159.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              632.00       561.00       377.00       275.00       148.00
 Standard Error     110.21        72.80        81.51        61.16          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3338.00      2011.00      1900.00      1683.00      1384.00      1081.00       810.00
 Standard Error        .            .            .         504.23       115.59       172.36       198.42       189.80       138.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              641.00       539.00       396.00       262.00       126.00
 Standard Error      77.14        65.88        64.32        50.58          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2822.00      2442.00      2015.00      1883.00      1365.00      1106.00       953.00       777.00
 Standard Error        .            .         247.41       174.77       196.25       223.71       121.23        89.79        90.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              605.00       404.00       273.00       161.00        83.00
 Standard Error      89.55        80.95        48.18        31.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2429.00      2069.00      1658.00      1209.00       986.00       861.00
 Standard Error        .            .            .            .         258.86       253.28       183.03       103.11       102.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              595.00       500.00       365.00       225.00       167.00
 Standard Error      89.20        50.61        53.08        33.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2394.00      1948.00      1609.00      1330.00      1037.00       857.00       653.00       523.00
 Standard Error        .            .         218.39       171.67       158.13       133.40       109.10        89.66        67.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              392.00       326.00       192.00       151.00        63.00
 Standard Error      46.34        41.49        36.61        20.24          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2023.00      1759.00      1446.00      1119.00       954.00       742.00       582.00
 Standard Error        .            .            .         157.48       175.54       136.54       103.38        88.93        64.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              495.00       356.00       236.00       142.00        71.00
 Standard Error      52.01        53.27        39.37        26.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1544.00      1247.00      1054.00       868.00       732.00       561.00
 Standard Error        .            .            .            .         137.41        97.12        86.04        74.36        71.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              437.00       350.00       228.00       182.00        84.00
 Standard Error      47.66        43.20        30.94        22.90          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1214.00       968.00       845.00       701.00       613.00
 Standard Error        .            .            .            .            .          97.56        69.98        55.74        55.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              458.00       382.00       246.00       180.00        94.00
 Standard Error      50.28        42.52        36.56        22.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         696.00       566.00
 Standard Error        .            .            .            .            .            .            .            .          58.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              431.00       310.00       229.00       134.00        50.00
 Standard Error      52.87        42.23        31.28        25.43          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         581.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              431.00       287.00       201.00       157.00        63.00
 Standard Error      60.23        44.45        23.00        21.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         330.00       164.00        55.00
 Standard Error        .            .            .          37.87          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3113.00      2492.00      2062.00      1757.00      1485.00      1066.00       832.00
 Standard Error        .            .            .         424.28       342.70       241.69       273.93       249.29       158.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              616.00       455.00       370.00       245.00       169.00
 Standard Error     129.17        83.91        66.94        48.54          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2683.00      2465.00      2170.00      1638.00      1566.00      1352.00      1150.00       782.00
 Standard Error        .            .         275.06       283.36       222.82       108.20       161.17       213.77       181.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              623.00       427.00       245.00       113.00        43.00
 Standard Error     103.15       109.01        82.28        45.17          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3039.00      2367.00      1828.00      1385.00      1091.00       898.00
 Standard Error        .            .            .            .         481.70       370.54       268.56       192.69       141.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              687.00       517.00       392.00       244.00       150.00
 Standard Error     134.97        91.13        71.45        58.26          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1997.00      1679.00      1204.00       870.00       753.00       564.00
 Standard Error        .            .            .            .         295.80       281.05       163.27       102.01       115.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              390.00       299.00       182.00       113.00        56.00
 Standard Error      82.82        54.45        48.57        26.44          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2276.00      1696.00      1465.00      1138.00       921.00       809.00       654.00
 Standard Error        .            .            .         273.24       173.74       181.43       103.82        85.92        98.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              472.00       381.00       294.00       178.00        96.00
 Standard Error      68.04        43.19        44.66        35.01          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1765.00      1444.00      1189.00      1048.00       871.00       709.00
 Standard Error        .            .            .            .         198.85       138.26       111.77       106.54       107.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              510.00       400.00       295.00       192.00       132.00
 Standard Error      82.75        57.08        44.66        32.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1680.00      1309.00      1140.00       913.00       712.00
 Standard Error        .            .            .            .            .         167.71       115.24       116.73        94.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              558.00       406.00       233.00       182.00       132.00
 Standard Error      85.65        73.87        46.45        18.12          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1307.00      1025.00       852.00       719.00       519.00
 Standard Error        .            .            .            .            .         139.34        97.43       100.17        93.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              415.00       263.00       191.00       120.00        54.00
 Standard Error      70.09        55.44        32.49        26.38          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .         961.00       812.00       701.00       580.00
 Standard Error        .            .            .            .            .            .          71.84        61.18        57.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              482.00       380.00       276.00       168.00        81.00
 Standard Error      48.70        50.18        41.39        32.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         658.00       473.00
 Standard Error        .            .            .            .            .            .            .            .          69.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              395.00       315.00       217.00       182.00       123.00
 Standard Error      38.84        40.10        25.55        18.81          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         227.00       189.00       129.00        69.00
 Standard Error        .            .          24.40        24.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1991.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2874.00      2085.00      1723.00      1398.00      1316.00      1054.00       654.00
 Standard Error        .            .            .         493.35       320.77       206.86       184.28       276.06       215.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              532.00       369.00       242.00       176.00        91.00
 Standard Error     109.60        91.40        58.32        40.18          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1992.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3432.00      2380.00      1612.00      1359.00      1145.00       872.00       761.00       701.00
 Standard Error        .            .         776.65       504.16       238.11       205.56       164.81        97.00        86.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       403.00       272.00       187.00        95.00
 Standard Error     110.79       117.16        65.93        58.72          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1993.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        1973.00      1513.00       947.00       875.00       805.00       645.00       575.00
 Standard Error        .            .            .         430.32       270.48        67.43        93.59        99.36       100.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              371.00       285.00       214.00       168.00        84.00
 Standard Error      97.27        49.95        35.78        31.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1994.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2565.00      1769.00      1438.00      1167.00       897.00       623.00
 Standard Error        .            .            .            .         419.37       234.63       198.48       195.74       124.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              518.00       383.00       263.00       149.00        63.00
 Standard Error      79.93        76.72        59.76        43.68          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1995.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2199.00      1899.00      1532.00      1186.00       920.00       747.00
 Standard Error        .            .            .            .         280.19       301.53       245.64       174.50       123.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              596.00       532.00       385.00       237.00       147.00
 Standard Error      82.01        64.62        95.07        59.10          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1996.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1443.00      1229.00      1071.00       903.00       674.00
 Standard Error        .            .            .            .            .         148.56       139.43       168.77       155.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              506.00       335.00       244.00       176.00       122.00
 Standard Error     112.29        75.70        43.32        33.52          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1997.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1358.00      1043.00       696.00       503.00
 Standard Error        .            .            .            .            .            .         238.33       192.11       100.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              389.00       356.00       261.00       174.00       116.00
 Standard Error      48.76        36.61        48.58        30.88          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1998.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1248.00       990.00       773.00
 Standard Error        .            .            .            .            .            .            .         178.57       151.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              531.00       433.00       315.00       189.00        70.00
 Standard Error     108.59        59.39        60.91        54.78          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 1999.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .         918.00       750.00       623.00
 Standard Error        .            .            .            .            .            .            .         110.86        92.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              460.00       313.00       210.00       167.00        60.00
 Standard Error      93.82        72.03        40.81        32.98          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2000.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              511.00       427.00       364.00       219.00       115.00
 Standard Error        .          53.55        55.85        54.51          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor YEARPLAC = 2001.00




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         162.00        66.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29            3221       1116        2105         65.35
  YEARPLAC        1991.00           216        109         107         49.54
  YEARPLAC        1992.00           288        138         150         52.08
  YEARPLAC        1993.00           345        148         197         57.10
  YEARPLAC        1994.00           334        136         198         59.28
  YEARPLAC        1995.00           310        128         182         58.71
  YEARPLAC        1996.00           267        106         161         60.30
  YEARPLAC        1997.00           326        123         203         62.27
  YEARPLAC        1998.00           278         80         198         71.22
  YEARPLAC        1999.00           273         66         207         75.82
  YEARPLAC        2000.00           361         67         294         81.44
  YEARPLAC        2001.00           223         15         208         93.27

PATAGEG2       30 to 39            4306       1715        2591         60.17
  YEARPLAC        1991.00           292        155         137         46.92
  YEARPLAC        1992.00           314        169         145         46.18
  YEARPLAC        1993.00           341        176         165         48.39
  YEARPLAC        1994.00           424        195         229         54.01
  YEARPLAC        1995.00           420        212         208         49.52
  YEARPLAC        1996.00           408        201         207         50.74
  YEARPLAC        1997.00           351        153         198         56.41
  YEARPLAC        1998.00           413        159         254         61.50
  YEARPLAC        1999.00           474        136         338         71.31
  YEARPLAC        2000.00           441        111         330         74.83
  YEARPLAC        2001.00           428         48         380         88.79

PATAGEG2       40 to 49            4453       1948        2505         56.25
  YEARPLAC        1991.00           280        158         122         43.57
  YEARPLAC        1992.00           329        186         143         43.47
  YEARPLAC        1993.00           413        211         202         48.91
  YEARPLAC        1994.00           374        207         167         44.65
  YEARPLAC        1995.00           414        197         217         52.42
  YEARPLAC        1996.00           458        241         217         47.38
  YEARPLAC        1997.00           432        217         215         49.77
  YEARPLAC        1998.00           492        222         270         54.88
  YEARPLAC        1999.00           442        151         291         65.84
  YEARPLAC        2000.00           415        119         296         71.33
  YEARPLAC        2001.00           404         39         365         90.35

PATAGEG2       50 to 59            3823       1657        2166         56.66
  YEARPLAC        1991.00           181        102          79         43.65
  YEARPLAC        1992.00           240        121         119         49.58
  YEARPLAC        1993.00           327        175         152         46.48
  YEARPLAC        1994.00           319        158         161         50.47
  YEARPLAC        1995.00           341        198         143         41.94
  YEARPLAC        1996.00           360        195         165         45.83
  YEARPLAC        1997.00           371        194         177         47.71
  YEARPLAC        1998.00           390        190         200         51.28
  YEARPLAC        1999.00           434        159         275         63.36
  YEARPLAC        2000.00           410        118         292         71.22
  YEARPLAC        2001.00           450         47         403         89.56

PATAGEG2       60 to 69            2714       1172        1542         56.82
  YEARPLAC        1991.00           154         81          73         47.40
  YEARPLAC        1992.00           180        103          77         42.78
  YEARPLAC        1993.00           177         85          92         51.98
  YEARPLAC        1994.00           212        108         104         49.06
  YEARPLAC        1995.00           267        145         122         45.69
  YEARPLAC        1996.00           245        126         119         48.57
  YEARPLAC        1997.00           302        141         161         53.31
  YEARPLAC        1998.00           237        110         127         53.59
  YEARPLAC        1999.00           321        132         189         58.88
  YEARPLAC        2000.00           302         94         208         68.87
  YEARPLAC        2001.00           317         47         270         85.17



PATAGEG2       70 or older         1853        731        1122         60.55
  YEARPLAC        1991.00           132         67          65         49.24
  YEARPLAC        1992.00           122         67          55         45.08
  YEARPLAC        1993.00           145         76          69         47.59
  YEARPLAC        1994.00           185         87          98         52.97
  YEARPLAC        1995.00           147         69          78         53.06
  YEARPLAC        1996.00           164         79          85         51.83
  YEARPLAC        1997.00           175         79          96         54.86
  YEARPLAC        1998.00           186         68         118         63.44
  YEARPLAC        1999.00           195         74         121         62.05
  YEARPLAC        2000.00           183         43         140         76.50
  YEARPLAC        2001.00           219         22         197         89.95

Overall                           20370       8339       12031         59.06


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank           6.62        10          .7607


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank          13.01        10          .2230


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank          17.43        10          .0653


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank          27.66        10          .0020


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          19.53        10          .0340


 Test Statistics for Equality of Survival Distributions for YEARPLAC
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank           5.81        10          .8311







 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .20
             ( .6565)

  1993.00       2.09     1.46
             ( .1481) ( .2267)

  1994.00        .46      .12      .96
             ( .4972) ( .7338) ( .3275)

  1995.00        .01      .00     3.11      .21
             ( .9255) ( .9879) ( .0779) ( .6485)

  1996.00        .46      .03     4.10      .28      .12
             ( .4991) ( .8694) ( .0430) ( .5971) ( .7333)

  1997.00        .57      .11     4.75      .49      .44      .15
             ( .4514) ( .7366) ( .0293) ( .4858) ( .5086) ( .6985)

  1998.00        .01      .39      .94      .09      .24      .70     1.64
             ( .9348) ( .5318) ( .3333) ( .7606) ( .6244) ( .4028) ( .1998)

  1999.00        .64      .00     1.55      .02      .01      .34      .63      .31
             ( .4225) ( .9713) ( .2128) ( .8874) ( .9289) ( .5616) ( .4279) ( .5766)

  2000.00       1.50      .61     2.67      .01      .01      .01      .00     1.36      .00
             ( .2208) ( .4335) ( .1025) ( .9160) ( .9268) ( .9386) ( .9649) ( .2443) ( .9570)

  2001.00        .88      .61      .00      .02      .03      .00      .16      .86      .74      .97
             ( .3469) ( .4332) ( .9926) ( .8805) ( .8628) ( .9675) ( .6905) ( .3524) ( .3900) ( .3249)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .02
             ( .8871)

  1993.00        .00      .12
             ( .9738) ( .7283)

  1994.00        .90      .24      .76
             ( .3416) ( .6240) ( .3837)

  1995.00       1.31     3.42     1.56     4.59
             ( .2525) ( .0645) ( .2116) ( .0321)

  1996.00       1.34     3.13     1.83     4.43      .02
             ( .2462) ( .0769) ( .1767) ( .0354) ( .8915)

  1997.00        .68     1.59      .55     2.41      .08      .21
             ( .4079) ( .2079) ( .4571) ( .1204) ( .7726) ( .6495)

  1998.00        .80     1.25      .06     1.12      .56      .34      .19
             ( .3719) ( .2641) ( .8067) ( .2903) ( .4539) ( .5600) ( .6667)

  1999.00        .10      .02     1.90      .06     4.04     3.60     3.05     2.77
             ( .7556) ( .8760) ( .1679) ( .8051) ( .0443) ( .0578) ( .0807) ( .0963)

  2000.00        .50     2.40      .02     2.06      .00      .09      .10      .06     2.76
             ( .4779) ( .1217) ( .8918) ( .1516) ( .9649) ( .7618) ( .7535) ( .8061) ( .0964)

  2001.00       1.48     1.39      .27     1.55      .00      .09      .00      .00      .82      .17
             ( .2240) ( .2380) ( .6045) ( .2137) ( .9489) ( .7630) ( .9593) ( .9579) ( .3657) ( .6842)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .08
             ( .7730)

  1993.00        .29      .67
             ( .5877) ( .4117)

  1994.00        .04      .01      .74
             ( .8437) ( .9302) ( .3895)

  1995.00        .59     1.86      .18     1.67
             ( .4434) ( .1732) ( .6678) ( .1963)

  1996.00       3.67      .91     4.64     1.16     7.56
             ( .0554) ( .3406) ( .0313) ( .2809) ( .0060)

  1997.00       3.53     1.12     3.04     1.61     6.05      .14
             ( .0602) ( .2893) ( .0815) ( .2045) ( .0139) ( .7036)

  1998.00       4.54     1.78     3.53     2.03     5.86      .09      .03
             ( .0331) ( .1819) ( .0604) ( .1544) ( .0155) ( .7602) ( .8660)

  1999.00        .30      .03      .02      .37      .09     4.24     3.00     3.86
             ( .5831) ( .8659) ( .8876) ( .5432) ( .7580) ( .0394) ( .0835) ( .0494)

  2000.00       3.82     2.01     1.75      .26     2.85      .55      .04      .47     2.66
             ( .0505) ( .1559) ( .1861) ( .6111) ( .0911) ( .4596) ( .8410) ( .4936) ( .1026)

  2001.00        .51      .04      .25     1.84      .10     5.39     2.86     3.01      .02     1.91
             ( .4764) ( .8395) ( .6162) ( .1744) ( .7509) ( .0203) ( .0907) ( .0826) ( .9025) ( .1675)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .33
             ( .5637)

  1993.00        .74     2.11
             ( .3890) ( .1462)

  1994.00        .02      .02     1.64
             ( .8929) ( .8749) ( .2010)

  1995.00       5.34     6.67     3.73     9.41
             ( .0208) ( .0098) ( .0535) ( .0022)

  1996.00       3.81     3.57     2.30     5.86      .38
             ( .0509) ( .0588) ( .1291) ( .0155) ( .5395)

  1997.00       4.64     7.90     4.89     7.84      .00      .53
             ( .0312) ( .0050) ( .0270) ( .0051) ( .9646) ( .4666)

  1998.00       5.66     8.99     3.80     6.50      .00      .56      .00
             ( .0174) ( .0027) ( .0511) ( .0108) ( .9872) ( .4546) ( .9816)

  1999.00       2.83     3.73     1.48     3.08      .97      .08      .59      .96
             ( .0924) ( .0534) ( .2235) ( .0791) ( .3241) ( .7837) ( .4420) ( .3272)

  2000.00       4.92     5.56     2.95     4.93      .26      .12      .02      .19      .01
             ( .0266) ( .0184) ( .0856) ( .0264) ( .6091) ( .7323) ( .8935) ( .6663) ( .9325)

  2001.00       1.43     2.54      .03     2.10     1.19      .40      .29      .08     1.43     2.18
             ( .2318) ( .1107) ( .8732) ( .1469) ( .2758) ( .5252) ( .5929) ( .7761) ( .2315) ( .1401)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .87
             ( .3504)

  1993.00        .26     2.01
             ( .6124) ( .1563)

  1994.00        .81      .04     2.35
             ( .3680) ( .8417) ( .1253)

  1995.00       2.08      .38     4.59      .07
             ( .1489) ( .5398) ( .0321) ( .7885)

  1996.00       1.59      .43     3.40      .02      .18
             ( .2077) ( .5100) ( .0651) ( .8823) ( .6719)

  1997.00       1.35      .09     1.89      .20      .93      .30
             ( .2454) ( .7636) ( .1689) ( .6574) ( .3351) ( .5846)

  1998.00       5.37     4.19     6.30      .32      .43      .78     1.89
             ( .0204) ( .0407) ( .0121) ( .5703) ( .5124) ( .3772) ( .1693)

  1999.00       4.57     4.07     6.54      .11      .49     1.62     2.68      .01
             ( .0325) ( .0436) ( .0105) ( .7437) ( .4856) ( .2033) ( .1015) ( .9350)

  2000.00       3.92     2.89     6.34      .02     1.09     1.80     2.67      .02      .53
             ( .0478) ( .0889) ( .0118) ( .9016) ( .2960) ( .1798) ( .1021) ( .9004) ( .4681)

  2001.00       5.11     1.65     6.96      .05     3.14     3.56     2.07      .00     2.35     1.26
             ( .0238) ( .1984) ( .0083) ( .8183) ( .0764) ( .0590) ( .1502) ( .9959) ( .1256) ( .2619)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor      1991.00  1992.00  1993.00  1994.00  1995.00  1996.00  1997.00  1998.00  1999.00  2000.00

  1992.00        .16
             ( .6855)

  1993.00       1.12      .47
             ( .2893) ( .4908)

  1994.00        .13      .66     2.49
             ( .7214) ( .4172) ( .1149)

  1995.00        .10      .64     2.45      .01
             ( .7510) ( .4222) ( .1177) ( .9283)

  1996.00        .08      .05     1.20      .27      .41
             ( .7800) ( .8263) ( .2740) ( .6054) ( .5231)

  1997.00        .06      .18     1.13      .21      .67      .07
             ( .8004) ( .6753) ( .2879) ( .6501) ( .4129) ( .7984)

  1998.00        .03     1.26     4.40      .09      .01      .83      .72
             ( .8552) ( .2624) ( .0360) ( .7700) ( .9147) ( .3611) ( .3972)

  1999.00       1.03      .03     1.05      .79     1.28      .49      .12     1.42
             ( .3104) ( .8666) ( .3056) ( .3747) ( .2582) ( .4829) ( .7276) ( .2329)

  2000.00        .28      .09     1.92      .29      .22      .47     1.84      .01      .94
             ( .5972) ( .7672) ( .1653) ( .5893) ( .6379) ( .4914) ( .1755) ( .9090) ( .3334)

  2001.00        .21      .05      .81      .14      .54      .25      .09      .03     1.17      .24
             ( .6431) ( .8293) ( .3669) ( .7072) ( .4622) ( .6169) ( .7654) ( .8528) ( .2786) ( .6272)






* Dentist age versus patient age by treatment type.

Get file='D:\temp1.sav'.


* Analyse interesting subgroups separately.

Temporary.

* Composite resin on incisors and canines.

Select if (toothtyp=1 and maintrt=1421).

KM
  time  by  dentage /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:40
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 95805
Syntax KM
time by dentage /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:06.56




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3349.00      2623.00      2136.00      1683.00      1398.00
 Standard Error        .            .            .            .            .         136.94        98.21        70.62        51.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1093.00       839.00       588.00       361.00       161.00
 Standard Error      44.07        35.85        28.64        20.59          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3422.00      2871.00      2268.00      1891.00      1441.00
 Standard Error        .            .            .            .            .         107.01        82.65        63.60        54.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1110.00       861.00       623.00       387.00       174.00
 Standard Error      36.87        27.65        23.23        17.70          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3924.00      3262.00      2745.00      2218.00      1777.00      1443.00
 Standard Error        .            .            .            .         147.20       124.42       104.28        75.70        61.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1088.00       815.00       572.00       385.00       217.00
 Standard Error      50.61        37.58        26.95        18.02          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3120.00      2767.00      2237.00      1762.00      1458.00
 Standard Error        .            .            .            .            .         132.68       153.40       108.53        82.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1113.00       798.00       556.00       334.00       165.00
 Standard Error      74.41        56.22        39.78        27.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3400.00      2654.00      2209.00      1765.00      1384.00
 Standard Error        .            .            .            .            .         132.09        90.39        75.88        61.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1034.00       807.00       564.00       346.00       161.00
 Standard Error      44.36        31.67        27.00        19.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3397.00      2827.00      2348.00      1901.00      1473.00
 Standard Error        .            .            .            .            .          89.03        72.40        61.91        50.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1118.00       844.00       586.00       375.00       174.00
 Standard Error      36.71        27.60        21.08        14.89          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3913.00      3296.00      2755.00      2240.00      1776.00      1399.00
 Standard Error        .            .            .            .         138.12       112.53        94.28        73.82        55.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1084.00       750.00       499.00       318.00       174.00
 Standard Error      47.47        37.39        23.78        14.77          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2981.00      2522.00      1964.00      1611.00      1331.00      1049.00
 Standard Error        .            .            .            .         141.73       116.02        77.45        62.83        51.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              839.00       650.00       490.00       347.00       183.00
 Standard Error      37.80        30.23        22.59        18.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3031.00      2330.00      1937.00      1540.00      1197.00
 Standard Error        .            .            .            .            .         119.99        79.86        68.61        49.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              963.00       712.00       484.00       309.00       157.00
 Standard Error      38.17        33.52        24.29        16.22          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3464.00      2854.00      2379.00      1918.00      1546.00      1228.00
 Standard Error        .            .            .            .          94.46        72.95        59.47        45.58        38.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              918.00       684.00       483.00       302.00       166.00
 Standard Error      30.33        21.62        16.57        11.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3565.00      2843.00      2305.00      1876.00      1541.00      1195.00
 Standard Error        .            .            .            .         123.34        86.32        63.72        52.27        42.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              937.00       702.00       503.00       343.00       182.00
 Standard Error      31.80        25.41        18.34        13.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3935.00      3049.00      2322.00      1933.00      1605.00      1278.00
 Standard Error        .            .            .            .         187.19       134.49        80.73        69.08        58.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1000.00       725.00       517.00       316.00       165.00
 Standard Error      48.51        37.97        27.98        19.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3533.00      2744.00      2129.00      1731.00      1389.00      1073.00       880.00
 Standard Error        .            .            .         187.86       121.70        81.29        68.82        50.07        35.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              689.00       540.00       359.00       216.00       118.00
 Standard Error      28.84        25.13        21.29        13.14          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3263.00      2775.00      2323.00      1857.00      1462.00      1201.00       951.00
 Standard Error        .            .            .          87.52        78.01        67.32        48.04        34.95        30.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              721.00       536.00       376.00       218.00       132.00
 Standard Error      24.43        18.26        14.68         9.40          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3322.00      2582.00      2070.00      1617.00      1330.00      1111.00       892.00
 Standard Error        .            .            .         125.93        89.25        63.27        41.78        33.87        28.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              719.00       544.00       399.00       252.00       160.00
 Standard Error      23.12        18.78        15.29        10.25          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3239.00      2673.00      2186.00      1849.00      1519.00      1287.00      1032.00       816.00
 Standard Error        .         144.54       132.23        94.53        71.64        57.41        47.55        42.12        33.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              638.00       481.00       364.00       224.00       146.00
 Standard Error      26.59        19.53        16.11        11.24          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3718.00      2788.00      2404.00      1913.00      1518.00      1190.00       986.00       732.00
 Standard Error        .            .         209.97       133.59       123.97        94.46        66.26        52.46        45.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              564.00       414.00       308.00       194.00       112.00
 Standard Error      31.50        22.71        17.25        12.68          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3353.00      2776.00      2192.00      1809.00      1491.00      1231.00       996.00       780.00
 Standard Error        .            .         126.01        93.54        63.44        50.06        40.23        34.51        28.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              596.00       433.00       320.00       203.00       119.00
 Standard Error      22.73        16.49        12.06         8.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3263.00      2582.00      2128.00      1694.00      1338.00      1096.00       899.00       705.00
 Standard Error        .         162.02       125.32        88.26        75.05        54.68        37.87        32.07        25.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       432.00       306.00       199.00       124.00
 Standard Error      19.49        16.91        13.15         8.62          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3772.00      2863.00      2170.00      1811.00      1448.00      1157.00       965.00       799.00
 Standard Error        .            .         199.46       126.71        82.56        70.31        49.51        34.86        29.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              635.00       500.00       357.00       210.00       127.00
 Standard Error      25.48        21.19        19.42        12.84          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3088.00      2737.00      2367.00      2141.00      1486.00      1183.00       959.00       800.00
 Standard Error        .         155.66       178.29       140.12       165.40       168.43        86.25        58.01        49.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              606.00       418.00       284.00       190.00       109.00
 Standard Error      49.15        36.98        23.26        14.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3375.00      2570.00      2162.00      1610.00      1284.00      1034.00       823.00       672.00
 Standard Error        .            .         161.07       115.16        96.57        60.35        45.26        33.47        25.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              525.00       392.00       277.00       189.00       111.00
 Standard Error      22.38        17.85        12.64         8.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2652.00      2103.00      1663.00      1316.00      1103.00       902.00       725.00       587.00
 Standard Error        .            .         115.10        84.38        57.93        41.23        35.69        28.34        23.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              448.00       363.00       252.00       183.00       112.00
 Standard Error      17.00        13.93        11.15         7.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2638.00      2143.00      1649.00      1322.00      1075.00       917.00       771.00       633.00
 Standard Error        .         217.05       132.77       108.51        71.05        47.98        34.87        30.35        27.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              496.00       379.00       274.00       190.00       123.00
 Standard Error      23.56        18.62        14.11         9.39          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           15670       4623       11047         70.50
  DENTAGE        under 30          3985       1177        2808         70.46
  DENTAGE        30 to 39          6038       1784        4254         70.45
  DENTAGE        40 to 49          3732       1102        2630         70.47
  DENTAGE        50 or older       1915        560        1355         70.76

PATAGEG2       30 to 39           18332       5582       12750         69.55
  DENTAGE        under 30          4151       1248        2903         69.93
  DENTAGE        30 to 39          7133       2086        5047         70.76
  DENTAGE        40 to 49          4507       1373        3134         69.54
  DENTAGE        50 or older       2541        875        1666         65.56

PATAGEG2       40 to 49           19333       6462       12871         66.58
  DENTAGE        under 30          3810       1229        2581         67.74
  DENTAGE        30 to 39          7213       2445        4768         66.10
  DENTAGE        40 to 49          5349       1813        3536         66.11
  DENTAGE        50 or older       2961        975        1986         67.07

PATAGEG2       50 to 59           17846       6835       11011         61.70
  DENTAGE        under 30          3092       1141        1951         63.10
  DENTAGE        30 to 39          6303       2370        3933         62.40
  DENTAGE        40 to 49          5045       1909        3136         62.16
  DENTAGE        50 or older       3406       1415        1991         58.46

PATAGEG2       60 to 69           14200       5825        8375         58.98
  DENTAGE        under 30          2192        859        1333         60.81
  DENTAGE        30 to 39          4854       1975        2879         59.31
  DENTAGE        40 to 49          4149       1759        2390         57.60
  DENTAGE        50 or older       3005       1232        1773         59.00

PATAGEG2       70 or older        10424       4353        6071         58.24
  DENTAGE        under 30          1308        488         820         62.69
  DENTAGE        30 to 39          3311       1326        1985         59.95
  DENTAGE        40 to 49          3396       1488        1908         56.18
  DENTAGE        50 or older       2409       1051        1358         56.37

Overall                           95805      33680       62125         64.85


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank           1.83        3           .6093


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank          38.09        3           .0000


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank            .60        3           .8961





 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank          15.37        3           .0015


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank           3.88        3           .2742


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank          20.85        3           .0001




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00       1.30
             ( .2544)

     3.00        .23      .38
             ( .6282) ( .5402)

     4.00        .01     1.05      .27
             ( .9139) ( .3059) ( .6057)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00       1.97
             ( .1600)

     3.00        .03     2.65
             ( .8571) ( .1032)

     4.00      19.96    38.03    18.95
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00        .20
             ( .6568)

     3.00        .13      .00
             ( .7194) ( .9571)

     4.00        .06      .48      .37
             ( .8056) ( .4882) ( .5454)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00        .66
             ( .4170)

     3.00        .00     1.04
             ( .9663) ( .3072)

     4.00       6.27    15.11     7.84
             ( .0123) ( .0001) ( .0051)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00        .03
             ( .8665)

     3.00       1.22     2.66
             ( .2698) ( .1029)

     4.00        .18      .08     3.01
             ( .6757) ( .7754) ( .0825)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00       2.09
             ( .1486)

     3.00      13.89     9.54
             ( .0002) ( .0020)

     4.00      11.21     6.37      .11
             ( .0008) ( .0116) ( .7454)





Temporary.

* Amalgam on molars.

Select if (toothtyp=3 and range(maintrt,1401,1404)).

KM
  time  by  dentage /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:47
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 208162
Syntax KM
time by dentage /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:10.12




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3687.00      3012.00      2470.00      2007.00
 Standard Error        .            .            .            .            .            .          73.58        53.63        43.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1557.00      1232.00       908.00       616.00       322.00
 Standard Error      33.21        24.49        19.96        15.25          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3631.00      2986.00      2490.00      2008.00
 Standard Error        .            .            .            .            .            .          55.22        42.13        34.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1591.00      1235.00       908.00       599.00       318.00
 Standard Error      26.61        20.68        16.51        12.32          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3393.00      2757.00      2264.00      1796.00
 Standard Error        .            .            .            .            .            .          61.26        46.83        37.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1417.00      1078.00       792.00       539.00       279.00
 Standard Error      28.31        21.99        16.32        12.58          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3338.00      2720.00      2207.00      1806.00
 Standard Error        .            .            .            .            .            .          78.01        56.71        41.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1473.00      1123.00       825.00       546.00       308.00
 Standard Error      34.68        28.89        22.15        16.06          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3985.00      3262.00      2642.00      2109.00      1673.00
 Standard Error        .            .            .            .            .          93.56        71.57        54.05        41.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1291.00       986.00       700.00       426.00       194.00
 Standard Error      31.42        24.20        19.56        14.32          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3754.00      3084.00      2485.00      1996.00      1605.00
 Standard Error        .            .            .            .            .          66.04        50.38        36.77        28.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1240.00       954.00       684.00       438.00       210.00
 Standard Error      22.45        17.08        13.64        10.18         6.67



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3683.00      2888.00      2357.00      1904.00      1489.00
 Standard Error        .            .            .            .            .          77.65        51.67        41.60        33.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1134.00       855.00       601.00       400.00       202.00
 Standard Error      25.28        18.97        14.07        10.04          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3771.00      3059.00      2611.00      2116.00      1696.00      1351.00
 Standard Error        .            .            .            .          91.32        67.08        58.38        45.54        35.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       794.00       581.00       382.00       203.00
 Standard Error      27.75        20.55        16.02        11.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3888.00      2928.00      2433.00      1903.00      1498.00
 Standard Error        .            .            .            .            .         125.73        81.27        66.33        50.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1125.00       835.00       597.00       367.00       183.00
 Standard Error      38.66        27.39        20.92        14.98          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3363.00      2708.00      2165.00      1707.00      1342.00
 Standard Error        .            .            .            .            .          68.77        51.90        39.26        29.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1032.00       783.00       556.00       343.00       162.00
 Standard Error      22.31        17.08        13.68        10.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3608.00      3023.00      2380.00      1912.00      1507.00      1183.00
 Standard Error        .            .            .            .          80.10        64.55        46.91        36.39        26.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              924.00       686.00       479.00       295.00       149.00
 Standard Error      21.04        16.98        12.99         9.07          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3381.00      2801.00      2304.00      1811.00      1465.00      1141.00
 Standard Error        .            .            .            .          85.43        70.40        55.00        40.82        33.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              866.00       652.00       474.00       314.00       176.00
 Standard Error      25.37        18.32        13.82        10.02          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3456.00      2627.00      2164.00      1734.00      1348.00      1115.00
 Standard Error        .            .            .            .         152.00        97.05        82.32        57.72        43.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              850.00       609.00       407.00       233.00       113.00
 Standard Error      39.77        31.32        22.95        14.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3545.00      2835.00      2303.00      1831.00      1447.00      1134.00
 Standard Error        .            .            .            .         100.85        74.19        58.33        44.14        34.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              862.00       625.00       438.00       281.00       134.00
 Standard Error      27.49        20.61        14.56        10.60          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3206.00      2534.00      2087.00      1703.00      1314.00      1030.00
 Standard Error        .            .            .            .          90.81        62.46        53.67        43.76        32.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              778.00       595.00       414.00       267.00       145.00
 Standard Error      23.91        18.07        14.18         9.65          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3956.00      2939.00      2398.00      1959.00      1617.00      1288.00      1033.00
 Standard Error        .            .            .         132.37        85.97        63.98        51.72        42.04        32.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              796.00       607.00       435.00       311.00       164.00
 Standard Error      26.30        20.12        14.41        10.94          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3978.00      3051.00      2351.00      1957.00      1444.00      1174.00
 Standard Error        .            .            .            .         212.39       175.56       133.70       106.17        71.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              881.00       615.00       418.00       253.00       127.00
 Standard Error      64.51        47.80        32.29        22.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3665.00      2835.00      2254.00      1845.00      1429.00      1132.00
 Standard Error        .            .            .            .         160.63       101.92        77.99        62.17        47.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              851.00       627.00       430.00       276.00       154.00
 Standard Error      37.96        28.29        20.78        13.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3067.00      2409.00      1947.00      1565.00      1261.00       965.00
 Standard Error        .            .            .            .         121.35        82.67        63.56        52.04        40.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              757.00       579.00       404.00       258.00       155.00
 Standard Error      28.89        23.85        19.17        12.32          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3495.00      2748.00      2315.00      1810.00      1436.00      1150.00       927.00
 Standard Error        .            .            .         153.66       108.82        94.47        66.46        47.78        37.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              728.00       537.00       375.00       249.00       170.00
 Standard Error      31.99        26.39        18.72        11.13          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3437.00      2731.00      2252.00      1502.00      1240.00      1027.00
 Standard Error        .            .            .            .         372.58       303.12       244.22       102.67        85.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              809.00       675.00       455.00       245.00       133.00
 Standard Error      68.36        60.83        61.06        37.61          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3816.00      2908.00      2602.00      2159.00      1622.00      1358.00      1068.00
 Standard Error        .            .            .         177.98       141.46       151.76       115.60        73.17        62.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              848.00       585.00       438.00       295.00       133.00
 Standard Error      53.51        41.09        25.32        22.09          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3562.00      2652.00      2205.00      1703.00      1330.00      1091.00       879.00
 Standard Error        .            .            .         224.53       142.91       122.56        80.33        55.31        47.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              682.00       485.00       357.00       203.00       108.00
 Standard Error      41.52        31.24        23.34        17.35          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3968.00      3968.00      3073.00      2484.00      1918.00      1555.00      1196.00       947.00
 Standard Error        .            .         628.36       180.77       198.57       145.91       105.79        82.31        59.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              735.00       531.00       380.00       231.00       147.00
 Standard Error      47.99        36.78        27.22        17.77          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           66067      16431       49636         75.13
  DENTAGE        under 30         15392       3671       11721         76.15
  DENTAGE        30 to 39         23419       5681       17738         75.74
  DENTAGE        40 to 49         16732       4377       12355         73.84
  DENTAGE        50 or older      10524       2702        7822         74.33

PATAGEG2       30 to 39           57218      16663       40555         70.88
  DENTAGE        under 30         11875       3272        8603         72.45
  DENTAGE        30 to 39         20792       5908       14884         71.59
  DENTAGE        40 to 49         14958       4487       10471         70.00
  DENTAGE        50 or older       9593       2996        6597         68.77

PATAGEG2       40 to 49           42047      13742       28305         67.32
  DENTAGE        under 30          7106       2070        5036         70.87
  DENTAGE        30 to 39         14348       4553        9795         68.27
  DENTAGE        40 to 49         12334       4252        8082         65.53
  DENTAGE        50 or older       8259       2867        5392         65.29

PATAGEG2       50 to 59           24350       8590       15760         64.72
  DENTAGE        under 30          3643       1240        2403         65.96
  DENTAGE        30 to 39          7641       2657        4984         65.23
  DENTAGE        40 to 49          7258       2582        4676         64.43
  DENTAGE        50 or older       5808       2111        3697         63.65

PATAGEG2       60 to 69           12478       4586        7892         63.25
  DENTAGE        under 30          1622        557        1065         65.66
  DENTAGE        30 to 39          3867       1364        2503         64.73
  DENTAGE        40 to 49          3801       1447        2354         61.93
  DENTAGE        50 or older       3188       1218        1970         61.79

PATAGEG2       70 or older         6002       2104        3898         64.95
  DENTAGE        under 30           664        212         452         68.07
  DENTAGE        30 to 39          1790        608        1182         66.03
  DENTAGE        40 to 49          1927        717        1210         62.79
  DENTAGE        50 or older       1621        567        1054         65.02

Overall                          208162      62116      146046         70.16


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank          31.12        3           .0000


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank          55.89        3           .0000


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank          69.33        3           .0000





 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank           7.66        3           .0536


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          19.04        3           .0003


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank           8.03        3           .0455




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00        .06
             ( .7992)

     3.00      17.57    19.32
             ( .0000) ( .0000)

     4.00      11.61    12.05      .10
             ( .0007) ( .0005) ( .7480)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00       1.94
             ( .1642)

     3.00      14.26     8.25
             ( .0002) ( .0041)

     4.00      45.13    38.93    12.10
             ( .0000) ( .0000) ( .0005)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00       7.20
             ( .0073)

     3.00      40.42    21.31
             ( .0000) ( .0000)

     4.00      48.24    28.94     1.50
             ( .0000) ( .0000) ( .2212)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00       1.36
             ( .2443)

     3.00        .31     4.62
             ( .5808) ( .0316)

     4.00        .81     6.51      .22
             ( .3687) ( .0107) ( .6375)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00        .16
             ( .6848)

     3.00       5.51     6.63
             ( .0189) ( .0100)

     4.00      10.46    13.55     1.54
             ( .0012) ( .0002) ( .2150)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00        .02
             ( .8758)

     3.00       3.89     6.57
             ( .0485) ( .0104)

     4.00        .95     1.23     1.80
             ( .3307) ( .2678) ( .1795)





Temporary.

* Glass ionomer on molars.

Select if (toothtyp=3 and maintrt = 1426).

KM
  time  by  dentage /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:06:57
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 20370
Syntax KM
time by dentage /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:04.75




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3486.00      2926.00      2609.00      2193.00      1625.00      1303.00      1105.00
 Standard Error        .            .            .         220.43       191.17       200.81       169.11        91.86        70.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              865.00       646.00       462.00       267.00       144.00
 Standard Error      68.58        55.19        45.02        31.89          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3843.00      3843.00      3321.00      2615.00      2224.00      2014.00      1628.00      1407.00      1171.00
 Standard Error        .         471.39       167.64       237.30       140.90       122.12       108.70        84.57        79.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              902.00       692.00       484.00       267.00       143.00
 Standard Error      70.52        53.44        45.42        29.90          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3203.00      2815.00      2315.00      1843.00      1585.00      1291.00      1053.00       868.00
 Standard Error        .            .         272.75       265.24       179.54       137.77       120.14        87.20        79.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              670.00       553.00       419.00       267.00       138.00
 Standard Error      58.66        42.66        40.50        32.34          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3162.00      2904.00      2264.00      1968.00      1589.00      1403.00      1022.00
 Standard Error        .            .            .         363.81       364.63       229.46       159.17       164.97       165.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              803.00       665.00       494.00       336.00       204.00
 Standard Error      90.65        69.43        61.97        43.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3231.00      2615.00      2226.00      1674.00      1309.00       965.00       770.00
 Standard Error        .            .            .         217.07       188.70       168.43       121.63        85.39        60.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              561.00       408.00       255.00       161.00        81.00
 Standard Error      49.93        38.22        26.94        15.89          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2999.00      2517.00      1842.00      1436.00      1148.00       918.00       738.00
 Standard Error        .            .            .         188.62       163.87        99.57        70.38        52.63        41.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              573.00       394.00       265.00       182.00        84.00
 Standard Error      37.08        30.52        17.99        13.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2989.00      2548.00      2038.00      1614.00      1399.00      1131.00       902.00       666.00
 Standard Error        .            .         203.72       202.62       129.13        90.99        92.63        77.13        57.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              529.00       421.00       300.00       186.00        88.00
 Standard Error      35.26        30.44        26.87        20.39          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3267.00      2725.00      1976.00      1452.00      1256.00      1032.00       775.00
 Standard Error        .            .            .         391.98       381.61       199.55       114.88       119.24       102.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              589.00       455.00       322.00       203.00       120.00
 Standard Error      71.49        52.87        40.07        28.34          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3486.00      2829.00      2378.00      1784.00      1442.00      1191.00       883.00       727.00
 Standard Error        .            .         289.19       226.93       198.11       116.89       105.12        81.00        52.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              573.00       425.00       301.00       189.00        96.00
 Standard Error      46.42        37.83        28.33        21.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3311.00      2539.00      2127.00      1538.00      1203.00       943.00       750.00       558.00
 Standard Error        .            .         194.38       151.93       130.90        79.79        58.37        46.77        34.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              450.00       338.00       224.00       146.00        62.00
 Standard Error      23.49        22.53        16.63        11.74          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2879.00      2616.00      1923.00      1726.00      1324.00       995.00       776.00       619.00
 Standard Error        .            .         187.09       157.10       106.14       122.47        84.82        55.99        43.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              468.00       360.00       249.00       175.00        84.00
 Standard Error      33.41        26.32        19.28        14.54          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3769.00      2643.00      2251.00      1914.00      1477.00      1283.00       992.00       786.00       630.00
 Standard Error        .         282.36       201.15       188.44       146.10       107.62       100.47        72.86        63.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              446.00       364.00       265.00       183.00        73.00
 Standard Error      46.65        28.70        25.34        22.55          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2429.00      2069.00      1845.00      1618.00      1369.00      1128.00       895.00       665.00
 Standard Error        .         283.67       145.83       106.54       106.97       103.76        96.04        87.96        72.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              471.00       322.00       233.00       155.00        78.00
 Standard Error      53.80        34.61        21.39        16.51          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3215.00      2416.00      1999.00      1589.00      1288.00       994.00       806.00       626.00
 Standard Error        .            .         216.71       145.76       121.38        92.54        70.58        51.70        39.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              506.00       364.00       232.00       162.00        83.00
 Standard Error      31.81        30.36        19.16        12.13          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3863.00      2822.00      2171.00      1792.00      1450.00      1077.00       889.00       677.00       578.00
 Standard Error     514.96       315.38       215.38       142.38       134.55       100.15        68.85        49.82        34.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              458.00       365.00       271.00       180.00        67.00
 Standard Error      30.38        24.25        20.92        19.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2704.00      1908.00      1685.00      1283.00      1122.00       971.00       833.00       693.00
 Standard Error        .         393.17       270.28       160.24       142.87        74.75        65.35        61.47        52.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       432.00       352.00       189.00        79.00
 Standard Error      48.73        38.25        33.91        33.88          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3179.00      2220.00      1792.00      1382.00      1198.00      1006.00       799.00       627.00
 Standard Error        .            .         370.45       216.24       155.65        94.32        93.81        81.99        68.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              462.00       375.00       263.00       180.00        88.00
 Standard Error      49.79        35.80        29.51        22.38          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3787.00      2828.00      1968.00      1588.00      1351.00      1071.00       847.00       677.00
 Standard Error        .            .         329.22       244.39       119.22        97.50        88.77        64.67        49.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              518.00       394.00       249.00       176.00        91.00
 Standard Error      39.47        34.68        24.63        15.08          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2900.00      2240.00      1696.00      1258.00      1066.00       791.00       628.00
 Standard Error        .            .            .         314.39       240.51       141.11        97.95        87.86        66.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              442.00       357.00       245.00       175.00        81.00
 Standard Error      48.85        31.71        26.23        19.40          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2861.00      1964.00      1637.00      1392.00      1091.00       858.00       742.00       538.00
 Standard Error        .            .         315.84       154.75       146.20       134.03        85.18        73.82        66.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              441.00       342.00       218.00       168.00        79.00
 Standard Error      39.05        39.94        28.75        18.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = under 30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2660.00      2184.00      1728.00      1329.00      1062.00       771.00
 Standard Error        .            .            .            .         376.89       340.45       224.25       173.30       121.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              639.00       449.00       242.00       182.00        66.00
 Standard Error     100.50        96.02        54.93        34.90          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 30 to 39




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3432.00      3097.00      2063.00      1494.00      1133.00       868.00       720.00
 Standard Error        .            .            .         444.55       363.71       221.96       136.70        88.28        60.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              549.00       392.00       279.00       189.00       107.00
 Standard Error      56.78        43.16        28.78        20.94          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 40 to 49




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2199.00      1925.00      1694.00      1435.00      1123.00       943.00       685.00       545.00
 Standard Error        .         297.61       160.18       133.74       143.98       115.35       104.08        88.43        51.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              439.00       358.00       247.00       169.00        86.00
 Standard Error      35.78        33.23        29.12        20.88          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor DENTAGE = 50 or older




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3410.00      2239.00      1432.00      1249.00      1008.00       830.00       638.00
 Standard Error        .            .            .         692.81       292.97       136.83       119.84       102.03        85.68

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              498.00       384.00       267.00       181.00        91.00
 Standard Error      61.62        49.82        36.32        28.95          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29            3221       1116        2105         65.35
  DENTAGE        under 30          1003        357         646         64.41
  DENTAGE        30 to 39          1163        386         777         66.81
  DENTAGE        40 to 49           658        246         412         62.61
  DENTAGE        50 or older        397        127         270         68.01

PATAGEG2       30 to 39            4306       1715        2591         60.17
  DENTAGE        under 30          1100        425         675         61.36
  DENTAGE        30 to 39          1729        688        1041         60.21
  DENTAGE        40 to 49          1027        423         604         58.81
  DENTAGE        50 or older        450        179         271         60.22

PATAGEG2       40 to 49            4453       1948        2505         56.25
  DENTAGE        under 30           873        355         518         59.34
  DENTAGE        30 to 39          1722        777         945         54.88
  DENTAGE        40 to 49          1186        519         667         56.24
  DENTAGE        50 or older        672        297         375         55.80

PATAGEG2       50 to 59            3823       1657        2166         56.66
  DENTAGE        under 30           798        345         453         56.77
  DENTAGE        30 to 39          1372        597         775         56.49
  DENTAGE        40 to 49          1035        451         584         56.43
  DENTAGE        50 or older        618        264         354         57.28

PATAGEG2       60 to 69            2714       1172        1542         56.82
  DENTAGE        under 30           525        246         279         53.14
  DENTAGE        30 to 39          1036        431         605         58.40
  DENTAGE        40 to 49           654        270         384         58.72
  DENTAGE        50 or older        499        225         274         54.91

PATAGEG2       70 or older         1853        731        1122         60.55
  DENTAGE        under 30           281        102         179         63.70
  DENTAGE        30 to 39           654        245         409         62.54
  DENTAGE        40 to 49           553        241         312         56.42
  DENTAGE        50 or older        365        143         222         60.82

Overall                           20370       8339       12031         59.06


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank           5.34        3           .1487


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank           3.10        3           .3758


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank           3.53        3           .3171





 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank           1.19        3           .7543


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank           3.05        3           .3838


 Test Statistics for Equality of Survival Distributions for DENTAGE
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank           8.00        3           .0461




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00        .10
             ( .7540)

     3.00       4.37     3.59
             ( .0365) ( .0583)

     4.00        .00      .01     2.34
             ( .9743) ( .9252) ( .1264)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00        .58
             ( .4448)

     3.00       2.57      .98
             ( .1092) ( .3211)

     4.00        .01      .45     1.86
             ( .9049) ( .5035) ( .1722)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00       3.00
             ( .0832)

     3.00       1.76      .14
             ( .1840) ( .7093)

     4.00       2.56      .03      .22
             ( .1099) ( .8720) ( .6418)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00        .20
             ( .6511)

     3.00        .22     1.10
             ( .6384) ( .2951)

     4.00        .01      .22      .23
             ( .9040) ( .6400) ( .6340)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00        .74
             ( .3912)

     3.00        .61      .00
             ( .4351) ( .9796)

     4.00        .44     2.42     1.99
             ( .5047) ( .1201) ( .1581)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00        .30
             ( .5864)

     3.00       5.92     5.63
             ( .0150) ( .0177)

     4.00       1.05      .44     1.73
             ( .3053) ( .5075) ( .1886)





* Fees by patient age by treatment type.

Get file='D:\temp1.sav'.


* Analyse interesting subgroups separately.

Temporary.

* Composite resin on incisors and canines.

Select if (toothtyp=1 and maintrt=1421).

KM
  time  by  feesgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:02
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 95805
Syntax KM
time by feesgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:06.19




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        3447.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2912.00      2193.00      1441.00       796.00       362.00
 Standard Error     129.88       128.16       100.56        62.42          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3775.00      3115.00      2636.00      2204.00      1834.00      1502.00
 Standard Error        .            .            .            .         105.25        74.72        60.25        48.71        42.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1169.00       878.00       638.00       370.00       183.00
 Standard Error      35.96        27.45        22.69        16.75          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3897.00      2890.00      2270.00      1878.00      1578.00      1352.00      1169.00       961.00       791.00
 Standard Error        .         128.35       108.09        71.11        51.23        38.77        33.83        30.76        24.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              627.00       491.00       352.00       219.00       116.00
 Standard Error      20.66        17.04        14.64        10.52          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        3928.00      3566.00
 Standard Error        .            .            .            .            .            .            .            .         155.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2814.00      2245.00      1593.00       949.00       363.00
 Standard Error     142.38       112.27        97.06        72.16          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3327.00      2855.00      2362.00      1938.00      1533.00
 Standard Error        .            .            .            .            .          73.91        62.85        51.44        44.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1162.00       869.00       625.00       382.00       184.00
 Standard Error      34.14        24.78        19.44        14.43          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2782.00      2293.00      1919.00      1587.00      1362.00      1128.00       932.00       728.00
 Standard Error        .            .          80.71        62.51        46.57        36.49        32.92        28.27        24.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              564.00       449.00       328.00       202.00       112.00
 Standard Error      17.10        13.07        11.97         8.79          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        3075.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2482.00      1982.00      1513.00       965.00       453.00
 Standard Error     119.09        88.75        77.95        63.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3253.00      2625.00      2130.00      1761.00      1435.00
 Standard Error        .            .            .            .            .          76.46        53.88        39.85        34.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1099.00       809.00       570.00       364.00       187.00
 Standard Error      30.03        22.81        16.61        11.92          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2596.00      2159.00      1787.00      1467.00      1195.00       993.00       832.00       671.00
 Standard Error        .          85.13        68.34        55.29        45.63        34.86        25.48        21.83        18.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              535.00       395.00       287.00       188.00       105.00
 Standard Error      16.11        13.19         9.71         7.14          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        3282.00      2851.00
 Standard Error        .            .            .            .            .            .            .            .         152.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2260.00      1689.00      1134.00       641.00       295.00
 Standard Error     139.95       113.68        88.34        56.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3648.00      2842.00      2409.00      1982.00      1626.00      1338.00      1070.00
 Standard Error        .            .            .          95.86        60.88        51.17        39.18        31.79        25.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              855.00       651.00       468.00       301.00       169.00
 Standard Error      20.48        17.10        13.50         9.56          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3033.00      1864.00      1499.00      1288.00      1086.00       900.00       752.00       622.00       500.00
 Standard Error        .          62.62        45.60        32.07        29.06        24.41        19.46        16.85        14.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              388.00       295.00       211.00       172.00        89.00
 Standard Error      11.97         9.51         5.88         4.90          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3854.00      3494.00      2638.00      2076.00
 Standard Error        .            .            .            .            .            .         234.02       232.47       145.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1633.00      1240.00       915.00       584.00       252.00
 Standard Error     106.62        81.09        62.55        51.35          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3588.00      2905.00      2394.00      1994.00      1631.00      1327.00      1094.00       867.00
 Standard Error        .            .         102.44        71.39        54.65        44.89        34.29        27.49        23.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              674.00       514.00       367.00       218.00       138.00
 Standard Error      18.32        14.43        12.18         7.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2582.00      1689.00      1330.00      1121.00       950.00       793.00       647.00       550.00       435.00
 Standard Error     107.02        72.67        52.36        33.96        28.37        25.63        19.60        16.41        13.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              363.00       271.00       203.00       156.00        84.00
 Standard Error      11.22         9.98         6.48         5.40          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3773.00      2952.00      2386.00      2010.00
 Standard Error        .            .            .            .            .            .         257.96       175.65       176.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1254.00       946.00       637.00       407.00       189.00
 Standard Error     141.77        74.25        56.12        37.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3080.00      2479.00      2057.00      1580.00      1282.00      1049.00       859.00       711.00
 Standard Error        .         120.62       100.64        79.82        63.74        41.25        30.84        23.49        19.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              560.00       405.00       301.00       198.00       133.00
 Standard Error      18.31        14.03         9.91         6.70          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2163.00      1395.00      1146.00      1002.00       832.00       708.00       569.00       467.00       387.00
 Standard Error     141.10        57.51        42.71        33.85        30.64        26.34        23.28        16.96        13.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              315.00       234.00       185.00       140.00        78.00
 Standard Error      12.45         9.78         6.35         6.05          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29             14428       4623        9805         67.96
  FEESGRP        under £30           3001        550        2451         81.67
  FEESGRP        £30 to £79.99       6869       2225        4644         67.61
  FEESGRP        £80 or more         4558       1848        2710         59.46

PATAGEG2       30 to 39             17436       5582       11854         67.99
  FEESGRP        under £30           3109        510        2599         83.60
  FEESGRP        £30 to £79.99       8758       2695        6063         69.23
  FEESGRP        £80 or more         5569       2377        3192         57.32

PATAGEG2       40 to 49             18670       6462       12208         65.39
  FEESGRP        under £30           3048        529        2519         82.64
  FEESGRP        £30 to £79.99       9676       3167        6509         67.27
  FEESGRP        £80 or more         5946       2766        3180         53.48

PATAGEG2       50 to 59             17302       6835       10467         60.50
  FEESGRP        under £30           2324        438        1886         81.15
  FEESGRP        £30 to £79.99       9191       3401        5790         63.00
  FEESGRP        £80 or more         5787       2996        2791         48.23

PATAGEG2       60 to 69             13835       5825        8010         57.90
  FEESGRP        under £30           1683        392        1291         76.71
  FEESGRP        £30 to £79.99       7892       3183        4709         59.67
  FEESGRP        £80 or more         4260       2250        2010         47.18

PATAGEG2       70 or older          10176       4353        5823         57.22
  FEESGRP        under £30           1381        329        1052         76.18
  FEESGRP        £30 to £79.99       5908       2411        3497         59.19
  FEESGRP        £80 or more         2887       1613        1274         44.13

Overall                             91847      33680       58167         63.33


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank         831.96        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank         991.67        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank        1128.68        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank        1181.23        2           .0000



 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank         783.49        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank         547.84        2           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00

     2.00     261.97
             ( .0000)

     3.00     766.79   306.65
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00

     2.00     253.89
             ( .0000)

     3.00     837.40   446.82
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00     251.42
             ( .0000)

     3.00     906.09   562.71
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00     251.83
             ( .0000)

     3.00     846.14   644.04
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00     194.23
             ( .0000)

     3.00     605.23   412.33
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00     162.52
             ( .0000)

     3.00     459.74   256.98
             ( .0000) ( .0000)





Temporary.

* Amalgam on molars.

Select if (toothtyp=3 and range(maintrt,1401,1404)).

KM
  time  by  feesgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:08
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 208162
Syntax KM
time by feesgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:10.06




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        3384.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2736.00      2155.00      1603.00      1075.00       566.00
 Standard Error      49.05        38.18        30.42        23.38        16.82



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3291.00      2733.00      2284.00      1885.00      1539.00
 Standard Error        .            .            .            .            .          41.76        32.08        25.86        19.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1263.00       989.00       724.00       486.00       254.00
 Standard Error      16.08        14.07        11.41         8.75          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3635.00      3052.00      2574.00      2152.00      1767.00      1489.00      1214.00      1002.00
 Standard Error        .            .          84.17        65.61        54.08        41.14        32.30        26.37        20.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       629.00       473.00       307.00       170.00
 Standard Error      16.93        13.58        11.19         8.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        3683.00      2976.00
 Standard Error        .            .            .            .            .            .            .            .          69.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2356.00      1758.00      1211.00       764.00       386.00
 Standard Error      53.78        43.08        31.46        20.89          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3885.00      3160.00      2590.00      2094.00      1696.00      1358.00
 Standard Error        .            .            .            .          57.37        41.86        32.01        24.48        19.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1063.00       816.00       574.00       371.00       187.00
 Standard Error      15.18        12.32         9.80         6.99          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3080.00      2597.00      2191.00      1854.00      1575.00      1290.00      1078.00       874.00
 Standard Error        .          96.51        64.90        50.91        40.00        34.51        28.85        22.67        19.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              686.00       532.00       376.00       239.00       130.00
 Standard Error      15.89        12.95        10.71         7.46          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        3288.00      2707.00
 Standard Error        .            .            .            .            .            .            .            .          74.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2077.00      1519.00      1062.00       651.00       298.00
 Standard Error      63.76        47.24        34.22        24.25          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3461.00      2863.00      2334.00      1902.00      1519.00      1179.00
 Standard Error        .            .            .            .          52.76        40.82        31.89        26.26        20.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              919.00       690.00       483.00       307.00       161.00
 Standard Error      15.18        12.19         9.37         6.54          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3046.00      2523.00      2011.00      1621.00      1336.00      1095.00       893.00       732.00
 Standard Error        .            .          77.84        63.57        44.97        33.87        27.07        21.07        16.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              586.00       422.00       302.00       189.00        92.00
 Standard Error      15.57        12.84         9.27         7.10          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3624.00      2947.00      2343.00
 Standard Error        .            .            .            .            .            .            .         128.90        98.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1837.00      1270.00       884.00       563.00       272.00
 Standard Error      81.90        64.01        40.06        27.94          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3259.00      2589.00      2119.00      1732.00      1381.00      1106.00
 Standard Error        .            .            .            .          66.77        46.34        37.14        29.24        23.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              847.00       627.00       441.00       284.00       151.00
 Standard Error      19.25        14.68        10.88         7.64          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3956.00      2384.00      2010.00      1643.00      1339.00      1109.00       898.00       730.00       576.00
 Standard Error        .          82.85        64.52        54.71        42.42        33.82        27.99        22.58        18.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              444.00       352.00       244.00       165.00        73.00
 Standard Error      13.81        11.28         9.32         7.16          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3761.00      2969.00      2177.00
 Standard Error        .            .            .            .            .            .            .         219.38       155.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1689.00      1163.00       727.00       454.00       216.00
 Standard Error     109.49        90.24        57.67        34.11          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3856.00      3087.00      2494.00      1994.00      1623.00      1288.00      1027.00
 Standard Error        .            .            .         115.65        81.87        60.57        46.14        36.43        28.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              788.00       586.00       411.00       266.00       165.00
 Standard Error      23.06        18.01        13.36         8.61          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2644.00      2245.00      1791.00      1429.00      1187.00       976.00       808.00       630.00
 Standard Error        .         215.05       112.72        99.53        71.97        51.98        41.63        35.65        32.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              466.00       357.00       251.00       180.00        97.00
 Standard Error      24.43        17.79        12.85         9.43          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        3015.00      2496.00
 Standard Error        .            .            .            .            .            .            .            .         239.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1754.00      1115.00       764.00       455.00       224.00
 Standard Error     225.90       141.10        78.94        52.62          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3968.00      3521.00      2677.00      2253.00      1845.00      1454.00      1197.00       951.00
 Standard Error        .         348.18       142.54       161.35        99.12        82.52        62.78        45.50        38.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              748.00       553.00       385.00       231.00       126.00
 Standard Error      30.35        25.10        19.47        13.14          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2391.00      1974.00      1589.00      1257.00      1055.00       910.00       755.00       568.00
 Standard Error        .         237.44       148.70       128.27        91.91        57.91        47.13        51.13        45.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              430.00       358.00       244.00       175.00        77.00
 Standard Error      27.51        22.49        19.31        14.76          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29             59535      16431       43104         72.40
  FEESGRP        under £30          20816       3755       17061         81.96
  FEESGRP        £30 to £79.99      27287       8702       18585         68.11
  FEESGRP        £80 or more        11432       3974        7458         65.24

PATAGEG2       30 to 39             54307      16663       37644         69.32
  FEESGRP        under £30          16018       3109       12909         80.59
  FEESGRP        £30 to £79.99      28294       9485       18809         66.48
  FEESGRP        £80 or more         9995       4069        5926         59.29

PATAGEG2       40 to 49             40533      13742       26791         66.10
  FEESGRP        under £30           9955       2117        7838         78.73
  FEESGRP        £30 to £79.99      22464       8032       14432         64.25
  FEESGRP        £80 or more         8114       3593        4521         55.72

PATAGEG2       50 to 59             23667       8590       15077         63.70
  FEESGRP        under £30           4855       1064        3791         78.08
  FEESGRP        £30 to £79.99      13545       4922        8623         63.66
  FEESGRP        £80 or more         5267       2604        2663         50.56

PATAGEG2       60 to 69             12229       4586        7643         62.50
  FEESGRP        under £30           2169        529        1640         75.61
  FEESGRP        £30 to £79.99       7629       2925        4704         61.66
  FEESGRP        £80 or more         2431       1132        1299         53.43

PATAGEG2       70 or older           5836       2104        3732         63.95
  FEESGRP        under £30           1018        223         795         78.09
  FEESGRP        £30 to £79.99       3645       1336        2309         63.35
  FEESGRP        £80 or more         1173        545         628         53.54

Overall                            196107      62116      133991         68.33


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank        2846.07        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank        2118.35        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank        1493.33        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank        1013.59        2           .0000



 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank         341.04        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank         189.95        2           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00

     2.00    1587.28
             ( .0000)

     3.00    2785.03   420.99
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00

     2.00    1032.43
             ( .0000)

     3.00    2191.64   486.84
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00     701.49
             ( .0000)

     3.00    1532.61   396.31
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00     310.62
             ( .0000)

     3.00     968.59   431.92
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00     147.21
             ( .0000)

     3.00     334.21   120.25
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00      92.43
             ( .0000)

     3.00     188.04    57.50
             ( .0000) ( .0000)





Temporary.

* Glass ionomer on molars.

Select if (toothtyp=3 and maintrt = 1426).

KM
  time  by  feesgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:18
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 20370
Syntax KM
time by feesgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:04.90




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2921.00      2609.00      2224.00      1714.00
 Standard Error        .            .            .            .            .            .         162.95       183.36       174.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1292.00      1035.00       754.00       504.00       210.00
 Standard Error     111.53        79.55        69.18        55.32          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3254.00      2695.00      2385.00      1947.00      1625.00      1420.00      1171.00       963.00
 Standard Error        .         177.83       177.16       137.62       128.52        84.99        68.12        66.46        57.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              744.00       553.00       385.00       247.00       137.00
 Standard Error      50.92        40.15        30.12        20.35          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3843.00      2304.00      1877.00      1588.00      1338.00      1111.00       925.00       727.00       604.00
 Standard Error     613.27       239.91       203.68       133.37       117.57        94.84        82.28        64.40        43.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              500.00       371.00       252.00       167.00        82.00
 Standard Error      40.18        38.04        28.42        19.32          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3105.00      2364.00      1813.00      1377.00
 Standard Error        .            .            .            .            .            .         275.59       185.73       134.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1032.00       781.00       493.00       281.00       145.00
 Standard Error      92.08        73.45        58.54        33.59          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3089.00      2615.00      2084.00      1581.00      1337.00      1053.00       854.00       660.00
 Standard Error        .            .         153.84       141.75        95.82        65.04        57.18        43.86        36.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              507.00       381.00       240.00       170.00        77.00
 Standard Error      27.24        23.80        16.51        10.54          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3641.00      2324.00      1856.00      1511.00      1190.00       954.00       784.00       644.00       498.00
 Standard Error        .         214.91       162.56       130.10       101.18        71.12        51.74        45.04        37.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              391.00       285.00       205.00       151.00        70.00
 Standard Error      29.66        23.59        14.92        12.51          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3769.00      3187.00      2883.00      2181.00      1547.00      1271.00
 Standard Error        .            .            .            .         251.54       246.97       281.17       175.64       119.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              862.00       620.00       421.00       261.00       130.00
 Standard Error     105.66        63.94        45.91        31.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2874.00      2421.00      2011.00      1578.00      1262.00       959.00       796.00       619.00
 Standard Error        .            .         117.06       106.74        90.48        70.40        51.19        35.54        32.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              462.00       351.00       252.00       175.00        79.00
 Standard Error      24.37        17.75        13.11        10.71          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3060.00      1864.00      1491.00      1245.00       960.00       814.00       642.00       519.00       429.00
 Standard Error     225.24       167.23       110.80        90.87        71.95        53.16        45.63        31.70        24.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              342.00       258.00       175.00       104.00        47.00
 Standard Error      22.86        20.18        16.75        11.55          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3369.00      3019.00      2596.00      2108.00      1485.00
 Standard Error        .            .            .            .            .         237.20       262.15       282.34       222.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1130.00       804.00       562.00       327.00       167.00
 Standard Error     140.58       102.45        74.70        49.45          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2667.00      2070.00      1804.00      1480.00      1233.00      1027.00       850.00       665.00
 Standard Error        .         221.24       127.73        83.54        79.89        59.00        48.27        43.40        34.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              539.00       398.00       282.00       182.00        91.00
 Standard Error      27.26        24.01        17.54        13.04          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3086.00      1847.00      1484.00      1169.00       932.00       747.00       610.00       500.00       413.00
 Standard Error     336.11       116.11       114.67        92.95        68.23        50.93        37.46        28.67        25.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              316.00       229.00       178.00       132.00        45.00
 Standard Error      23.55        16.62        10.12        11.79          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2272.00      1729.00      1320.00      1098.00
 Standard Error        .            .            .            .            .            .         311.62       180.64       150.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              749.00       616.00       432.00       327.00       186.00
 Standard Error     119.40        72.07        53.16        38.18          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3214.00      2534.00      1939.00      1579.00      1258.00      1013.00       799.00       641.00
 Standard Error        .            .         201.32       149.04        98.83        79.90        62.00        49.04        39.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              468.00       371.00       233.00       173.00        78.00
 Standard Error      30.00        24.03        17.97        11.80          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        1948.00      1584.00      1345.00      1096.00       899.00       712.00       592.00       440.00
 Standard Error        .         282.79       140.44       113.75        93.12        80.01        61.63        53.74        41.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              364.00       245.00       181.00       134.00        76.00
 Standard Error      34.60        27.70        15.76        12.53          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = under £30




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2874.00      2565.00      2085.00      1694.00      1302.00
 Standard Error        .            .            .            .            .         425.74       431.24       278.51       252.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              939.00       794.00       567.00       312.00       175.00
 Standard Error     167.34       100.49       116.78        75.37          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £30 to £79.99




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3410.00      2142.00      1505.00      1245.00      1045.00       833.00       628.00
 Standard Error        .            .            .         360.71       165.42        79.70        67.98        66.06        47.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              505.00       371.00       267.00       185.00        91.00
 Standard Error      34.30        29.37        20.14        16.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor FEESGRP = £80 or more




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2771.00      2072.00      1740.00      1549.00      1256.00       872.00       736.00       554.00       484.00
 Standard Error        .         198.72       155.82       143.79       179.69       135.46        80.89        61.27        40.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              367.00       263.00       181.00       111.00        66.00
 Standard Error      46.82        37.29        26.73        16.75          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29              2974       1116        1858         62.47
  FEESGRP        under £30            912        249         663         72.70
  FEESGRP        £30 to £79.99       1379        571         808         58.59
  FEESGRP        £80 or more          683        296         387         56.66

PATAGEG2       30 to 39              4171       1715        2456         58.88
  FEESGRP        under £30            993        282         711         71.60
  FEESGRP        £30 to £79.99       2136        942        1194         55.90
  FEESGRP        £80 or more         1042        491         551         52.88

PATAGEG2       40 to 49              4333       1948        2385         55.04
  FEESGRP        under £30            838        263         575         68.62
  FEESGRP        £30 to £79.99       2382       1090        1292         54.24
  FEESGRP        £80 or more         1113        595         518         46.54

PATAGEG2       50 to 59              3737       1657        2080         55.66
  FEESGRP        under £30            592        159         433         73.14
  FEESGRP        £30 to £79.99       1978        883        1095         55.36
  FEESGRP        £80 or more         1167        615         552         47.30

PATAGEG2       60 to 69              2663       1172        1491         55.99
  FEESGRP        under £30            385        115         270         70.13
  FEESGRP        £30 to £79.99       1603        724         879         54.83
  FEESGRP        £80 or more          675        333         342         50.67

PATAGEG2       70 or older           1815        731        1084         59.72
  FEESGRP        under £30            250         71         179         71.60
  FEESGRP        £30 to £79.99       1133        452         681         60.11
  FEESGRP        £80 or more          432        208         224         51.85

Overall                             19693       8339       11354         57.66


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank         112.61        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank         107.61        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank         120.81        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank         132.88        2           .0000



 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          40.41        2           .0000


 Test Statistics for Equality of Survival Distributions for FEESGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank          32.06        2           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00

     2.00      55.19
             ( .0000)

     3.00     110.18    21.63
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00

     2.00      66.14
             ( .0000)

     3.00     106.78    14.51
             ( .0000) ( .0001)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00      51.73
             ( .0000)

     3.00     120.68    36.48
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00      57.41
             ( .0000)

     3.00     124.95    41.14
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00      18.32
             ( .0000)

     3.00      39.31    13.34
             ( .0000) ( .0003)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00      14.32
             ( .0002)

     3.00      32.40    10.74
             ( .0000) ( .0010)





* Median interval by patient age by treatment type.

Get file='D:\temp1.sav'.


* Analyse interesting subgroups separately.

Temporary.

* Composite resin on incisors and canines.

Select if (toothtyp=1 and maintrt=1421).

KM
  time  by  intgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:23
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 95805
Syntax KM
time by intgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:06.99




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3897.00      2692.00      2132.00      1733.00      1462.00      1243.00      1022.00       818.00
 Standard Error        .         870.76       186.10       144.00        92.90        67.00        55.23        48.71        44.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              609.00       407.00       233.00       128.00        56.00
 Standard Error      40.28        31.66        21.01        11.18          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3120.00      2441.00      1903.00      1517.00      1170.00
 Standard Error        .            .            .            .            .          94.08        68.44        50.62        39.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       676.00       470.00       279.00       167.00
 Standard Error      29.07        22.55        18.50        11.60          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3385.00      2866.00      2534.00      2058.00      1720.00
 Standard Error        .            .            .            .            .         108.15        96.79        92.17        68.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1372.00      1010.00       716.00       454.00       257.00
 Standard Error      63.08        52.68        38.05        25.39          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3924.00      3100.00      2741.00      2270.00
 Standard Error        .            .            .            .            .            .         150.62       108.23       115.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1777.00      1443.00      1094.00       776.00       460.00
 Standard Error      84.14        60.42        51.18        38.87          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3080.00      2361.00      1941.00      1633.00      1299.00      1054.00       845.00       650.00
 Standard Error        .            .         142.71        86.55        72.61        63.17        46.23        38.75        31.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              490.00       365.00       245.00       153.00        63.00
 Standard Error      23.63        18.34        14.33        10.19          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3292.00      2627.00      2089.00      1664.00      1288.00
 Standard Error        .            .            .            .            .          87.02        63.81        48.55        38.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              978.00       710.00       498.00       315.00       168.00
 Standard Error      29.47        22.03        15.86        10.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3913.00      3345.00      2946.00      2541.00      2058.00      1699.00
 Standard Error        .            .            .            .         124.55       105.20       102.07        87.16        71.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1292.00       984.00       721.00       483.00       245.00
 Standard Error      59.65        42.34        32.04        24.42          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3928.00      3640.00      3381.00      2899.00      2387.00
 Standard Error        .            .            .            .            .         119.52       141.88       146.23       123.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1959.00      1538.00      1161.00       850.00       523.00
 Standard Error      97.09        80.79        59.12        43.69          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2820.00      2267.00      1964.00      1547.00      1271.00       995.00       774.00       607.00
 Standard Error        .         138.08        98.31        77.16        71.47        53.85        46.51        34.16        27.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              442.00       320.00       207.00       144.00        69.00
 Standard Error      21.96        16.42        10.94         7.15          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3731.00      3022.00      2343.00      1887.00      1535.00      1204.00
 Standard Error        .            .            .            .          99.80        73.21        48.20        37.86        31.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              923.00       675.00       482.00       309.00       174.00
 Standard Error      24.95        18.78        13.67         9.52          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3375.00      2871.00      2340.00      1933.00      1569.00
 Standard Error        .            .            .            .            .         134.68       106.02        79.93        71.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1174.00       931.00       691.00       443.00       269.00
 Standard Error      54.48        36.79        31.72        22.79          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3075.00      2591.00      2096.00
 Standard Error        .            .            .            .            .            .            .         148.02       104.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1799.00      1392.00      1011.00       761.00       497.00
 Standard Error      82.29        79.87        54.23        36.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3108.00      1968.00      1535.00      1279.00      1056.00       872.00       708.00       581.00       449.00
 Standard Error        .          87.24        67.67        46.14        37.65        31.38        25.54        21.62        17.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              358.00       260.00       183.00       117.00        64.00
 Standard Error      13.94        11.84         8.62         5.99          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3306.00      2707.00      2184.00      1774.00      1431.00      1169.00       931.00
 Standard Error        .            .            .          81.49        62.63        46.96        35.63        27.56        22.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              730.00       549.00       396.00       230.00       161.00
 Standard Error      18.25        14.47        12.13         7.39          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2934.00      2188.00      1841.00      1462.00      1222.00
 Standard Error        .            .            .            .            .         136.69        86.41        67.77        54.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              934.00       722.00       504.00       355.00       214.00
 Standard Error      45.92        35.82        26.61        17.17          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3765.00      3166.00      2986.00      2747.00      2385.00      1839.00
 Standard Error        .            .            .            .         176.17        91.31       114.48       157.83       136.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1467.00      1121.00       882.00       654.00       419.00
 Standard Error      95.74        68.63        48.16        38.14          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2799.00      1771.00      1422.00      1155.00       936.00       763.00       619.00       504.00       381.00
 Standard Error     151.59        94.37        66.25        50.37        39.68        31.21        24.72        21.86        18.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              289.00       210.00       167.00       107.00        55.00
 Standard Error      13.88         9.03         6.76         6.22          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3886.00      2959.00      2394.00      1951.00      1578.00      1262.00      1028.00       825.00
 Standard Error        .            .         121.67        75.12        56.68        45.13        34.01        25.62        21.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              635.00       478.00       350.00       218.00       147.00
 Standard Error      17.56        13.09        10.58         6.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3263.00      2393.00      2052.00      1770.00      1434.00      1191.00      1052.00
 Standard Error        .            .            .         208.56       100.19        90.69        81.84        51.93        47.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              812.00       636.00       482.00       343.00       212.00
 Standard Error      48.49        34.48        26.22        19.48          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3898.00      3813.00      3813.00      3252.00      2772.00      2383.00      1874.00      1491.00
 Standard Error        .         142.52        90.35       268.46       207.49       217.90       209.93       173.61       130.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1183.00       866.00       631.00       511.00       383.00
 Standard Error     110.78        84.44        47.25        27.39          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2616.00      1522.00      1249.00      1034.00       847.00       679.00       559.00       459.00       374.00
 Standard Error     200.92        91.67        60.57        48.26        41.67        32.86        24.14        19.42        17.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              284.00       208.00       166.00       106.00        56.00
 Standard Error      15.33        10.14         7.77         6.91          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3088.00      2395.00      1996.00      1512.00      1222.00      1006.00       803.00       664.00
 Standard Error        .         141.66        99.85        73.66        60.65        37.72        29.54        22.55        17.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              518.00       385.00       284.00       195.00       142.00
 Standard Error      16.12        12.47         8.68         5.56          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3659.00      3045.00      2817.00      2479.00      2024.00      1555.00      1197.00       958.00
 Standard Error        .         293.11       257.48       176.62       204.95       187.06       158.55       103.52        64.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              790.00       633.00       489.00       284.00       188.00
 Standard Error      46.95        41.17        39.64        28.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2728.00      2521.00      2051.00      1445.00
 Standard Error        .            .            .            .            .            .         228.50       229.04       196.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1213.00      1018.00       817.00       540.00       360.00
 Standard Error      97.50        71.99        82.31        59.61          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                 14428      4623       9805        67.96
  INTGRP        under 150 days          2263       878       1385        61.20
  INTGRP        150 to 249 days         6198      2206       3992        64.41
  INTGRP        250 to 399 days         3064       912       2152        70.23
  INTGRP        400 days or longer      2903       627       2276        78.40

PATAGEG2      30 to 39                 17436      5582      11854        67.99
  INTGRP        under 150 days          2923      1282       1641        56.14
  INTGRP        150 to 249 days         8429      2799       5630        66.79
  INTGRP        250 to 399 days         3599      1004       2595        72.10
  INTGRP        400 days or longer      2485       497       1988        80.00

PATAGEG2      40 to 49                 18670      6462      12208        65.39
  INTGRP        under 150 days          3396      1579       1817        53.50
  INTGRP        150 to 249 days         9644      3426       6218        64.48
  INTGRP        250 to 399 days         3374       980       2394        70.95
  INTGRP        400 days or longer      2256       477       1779        78.86

PATAGEG2      50 to 59                 17302      6835      10467        60.50
  INTGRP        under 150 days          3590      1916       1674        46.63
  INTGRP        150 to 249 days         9360      3658       5702        60.92
  INTGRP        250 to 399 days         2733       867       1866        68.28
  INTGRP        400 days or longer      1619       394       1225        75.66

PATAGEG2      60 to 69                 13835      5825       8010        57.90
  INTGRP        under 150 days          2960      1613       1347        45.51
  INTGRP        150 to 249 days         8148      3346       4802        58.93
  INTGRP        250 to 399 days         1788       623       1165        65.16
  INTGRP        400 days or longer       939       243        696        74.12

PATAGEG2      70 or older              10176      4353       5823        57.22
  INTGRP        under 150 days          2265      1227       1038        45.83
  INTGRP        150 to 249 days         6185      2630       3555        57.48
  INTGRP        250 to 399 days         1095       350        745        68.04
  INTGRP        400 days or longer       631       146        485        76.86

Overall                                91847     33680      58167        63.33


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank         365.33        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank         540.65        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank         588.95        3           .0000





 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank         710.06        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank         491.23        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank         353.58        3           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00      81.73
             ( .0000)

     3.00     164.50    30.86
             ( .0000) ( .0000)

     4.00     345.79   152.31    41.05
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00     231.79
             ( .0000)

     3.00     281.49    21.95
             ( .0000) ( .0000)

     4.00     444.94   126.91    49.29
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00     280.07
             ( .0000)

     3.00     309.01    28.20
             ( .0000) ( .0000)

     4.00     428.97   120.08    37.26
             ( .0000) ( .0000) ( .0000)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00     384.25
             ( .0000)

     3.00     358.82    33.14
             ( .0000) ( .0000)

     4.00     427.32   108.36    30.35
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00     326.07
             ( .0000)

     3.00     211.43     8.88
             ( .0000) ( .0029)

     4.00     240.91    55.19    24.45
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00     169.57
             ( .0000)

     3.00     164.20    31.51
             ( .0000) ( .0000)

     4.00     203.00    81.02    20.60
             ( .0000) ( .0000) ( .0000)





Temporary.

* Amalgam on molars.

Select if (toothtyp=3 and range(maintrt,1401,1404)).

KM
  time  by  intgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:30
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 208162
Syntax KM
time by intgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:09.78




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3187.00      2675.00      2295.00      1932.00      1572.00      1309.00      1054.00
 Standard Error        .            .            .          80.79        63.67        57.45        46.06        35.61        32.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              805.00       586.00       407.00       222.00       104.00
 Standard Error      26.95        20.27        15.86        10.91          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3074.00      2554.00      2037.00      1627.00
 Standard Error        .            .            .            .            .            .          40.75        33.11        24.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1281.00       967.00       698.00       453.00       226.00
 Standard Error      19.69        15.57        11.93         9.01          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3784.00      3070.00      2511.00      2015.00
 Standard Error        .            .            .            .            .            .          77.35        56.76        43.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1609.00      1273.00       958.00       636.00       353.00
 Standard Error      32.07        24.90        20.99        16.13          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3941.00      3458.00      2878.00
 Standard Error        .            .            .            .            .            .            .          76.28        64.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2360.00      1872.00      1425.00      1033.00       653.00
 Standard Error      50.71        40.26        30.57        22.55          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3320.00      2772.00      2304.00      1890.00      1533.00      1233.00      1012.00       798.00
 Standard Error        .            .          86.80        70.05        57.79        46.90        35.47        27.67        23.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              614.00       455.00       310.00       186.00        80.00
 Standard Error      18.86        15.14        11.65         8.37          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3560.00      2806.00      2254.00      1808.00      1422.00
 Standard Error        .            .            .            .            .          52.77        36.42        27.82        21.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1106.00       822.00       567.00       358.00       182.00
 Standard Error      16.89        13.57        10.24         6.95          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3401.00      2759.00      2236.00      1802.00
 Standard Error        .            .            .            .            .            .          76.45        55.65        44.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1378.00      1061.00       783.00       523.00       300.00
 Standard Error      34.92        24.91        19.40        14.22          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3610.00      3064.00      2577.00
 Standard Error        .            .            .            .            .            .            .          90.34        71.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2098.00      1588.00      1184.00       865.00       548.00
 Standard Error      63.05        50.01        33.72        23.87          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3235.00      2590.00      1990.00      1562.00      1303.00      1052.00       847.00       679.00
 Standard Error        .            .         104.63        80.89        52.35        37.01        31.41        24.40        20.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              511.00       358.00       237.00       138.00        62.00
 Standard Error      18.28        14.18        10.15         6.77          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3886.00      3099.00      2480.00      1984.00      1577.00      1227.00
 Standard Error        .            .            .            .          67.37        47.77        35.55        27.59        21.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              935.00       693.00       478.00       298.00       165.00
 Standard Error      16.56        12.78         9.73         6.39         4.37



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3719.00      2969.00      2427.00      1954.00      1574.00
 Standard Error        .            .            .            .            .         109.64        76.56        58.07        47.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1189.00       905.00       651.00       435.00       238.00
 Standard Error      37.37        26.71        20.33        14.66          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3655.00      3024.00      2596.00
 Standard Error        .            .            .            .            .            .            .         125.67        94.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2061.00      1554.00      1157.00       814.00       504.00
 Standard Error      88.94        66.44        45.73        32.76          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3892.00      2417.00      1961.00      1582.00      1291.00      1042.00       842.00       674.00       514.00
 Standard Error        .         102.83        77.62        60.50        47.23        38.11        29.87        25.47        20.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              391.00       296.00       203.00       120.00        57.00
 Standard Error      14.98        11.76         9.85         6.82          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3422.00      2626.00      2141.00      1734.00      1365.00      1090.00
 Standard Error        .            .            .            .          74.96        48.31        38.95        30.12        23.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              816.00       601.00       420.00       267.00       151.00
 Standard Error      19.59        14.39        10.64         7.10          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2905.00      2374.00      1954.00      1551.00
 Standard Error        .            .            .            .            .            .         102.60        79.75        65.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1198.00       903.00       658.00       429.00       247.00
 Standard Error      50.77        38.03        28.94        20.63          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3900.00      3387.00      2829.00      2280.00
 Standard Error        .            .            .            .            .            .         167.92       178.09       153.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1734.00      1283.00      1007.00       714.00       475.00
 Standard Error     120.67        79.52        51.52        39.03          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2644.00      2177.00      1729.00      1335.00      1091.00       882.00       721.00       570.00
 Standard Error        .         168.46       119.69       105.64        75.91        52.42        41.02        33.15        29.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              429.00       333.00       232.00       173.00        85.00
 Standard Error      22.48        16.72        12.17         9.40          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3439.00      2677.00      2156.00      1719.00      1365.00      1097.00
 Standard Error        .            .            .            .          99.14        67.67        51.80        38.28        30.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              831.00       609.00       413.00       262.00       162.00
 Standard Error      25.56        19.96        14.54         8.80          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2786.00      2142.00      1764.00      1395.00
 Standard Error        .            .            .            .            .            .         163.68       110.00        90.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1092.00       816.00       585.00       411.00       245.00
 Standard Error      69.12        54.50        37.27        26.12          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3472.00      2579.00      2024.00
 Standard Error        .            .            .            .            .            .            .         353.95       189.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1723.00      1306.00       938.00       525.00       330.00
 Standard Error     146.82       140.92       114.18        68.81          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2908.00      2171.00      1707.00      1316.00      1091.00       864.00       660.00       483.00
 Standard Error        .         288.30       232.63       152.05       106.47        73.20        66.59        55.74        37.85

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              385.00       290.00       189.00       123.00        64.00
 Standard Error      25.39        22.67        18.02        11.04          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3968.00      3968.00      3015.00      2415.00      1994.00      1552.00      1243.00      1002.00
 Standard Error        .            .         579.56       117.36       116.89        90.56        72.50        49.33        37.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              799.00       585.00       412.00       269.00       148.00
 Standard Error      31.97        26.44        19.05        13.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3437.00      2769.00      2479.00      1883.00      1500.00
 Standard Error        .            .            .            .            .         238.98       235.31       225.83       168.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1174.00       902.00       675.00       455.00       237.00
 Standard Error     116.96        84.48        67.07        53.20          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3407.00      2759.00      2252.00
 Standard Error        .            .            .            .            .            .            .         414.30       422.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1588.00      1149.00       799.00       461.00       296.00
 Standard Error     346.18       221.31       161.99        96.38          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                 59535     16431      43104        72.40
  INTGRP        under 150 days          7035      2470       4565        64.89
  INTGRP        150 to 249 days        25709      7984      17725        68.94
  INTGRP        250 to 399 days        13750      3550      10200        74.18
  INTGRP        400 days or longer     13041      2427      10614        81.39

PATAGEG2      30 to 39                 54307     16663      37644        69.32
  INTGRP        under 150 days          6951      2936       4015        57.76
  INTGRP        150 to 249 days        27989      9129      18860        67.38
  INTGRP        250 to 399 days        11229      3050       8179        72.84
  INTGRP        400 days or longer      8138      1548       6590        80.98

PATAGEG2      40 to 49                 40533     13742      26791        66.10
  INTGRP        under 150 days          6137      2802       3335        54.34
  INTGRP        150 to 249 days        22257      7841      14416        64.77
  INTGRP        250 to 399 days         7614      2234       5380        70.66
  INTGRP        400 days or longer      4525       865       3660        80.88

PATAGEG2      50 to 59                 23667      8590      15077        63.70
  INTGRP        under 150 days          4197      2141       2056        48.99
  INTGRP        150 to 249 days        13409      4905       8504        63.42
  INTGRP        250 to 399 days         3923      1120       2803        71.45
  INTGRP        400 days or longer      2138       424       1714        80.17

PATAGEG2      60 to 69                 12229      4586       7643        62.50
  INTGRP        under 150 days          2258      1111       1147        50.80
  INTGRP        150 to 249 days         7547      2824       4723        62.58
  INTGRP        250 to 399 days         1686       487       1199        71.12
  INTGRP        400 days or longer       738       164        574        77.78

PATAGEG2      70 or older               5836      2104       3732        63.95
  INTGRP        under 150 days          1170       546        624        53.33
  INTGRP        150 to 249 days         3741      1321       2420        64.69
  INTGRP        250 to 399 days          660       177        483        73.18
  INTGRP        400 days or longer       265        60        205        77.36

Overall                               196107     62116     133991        68.33


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank        1413.85        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank        1301.48        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank        1053.72        3           .0000





 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank         864.95        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank         306.28        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank         144.76        3           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00     341.62
             ( .0000)

     3.00     597.11    97.03
             ( .0000) ( .0000)

     4.00    1396.68   632.43   213.25
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00     499.57
             ( .0000)

     3.00     690.14    81.55
             ( .0000) ( .0000)

     4.00    1179.88   409.02   136.53
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00     435.96
             ( .0000)

     3.00     519.78    55.15
             ( .0000) ( .0000)

     4.00     874.39   326.72   135.87
             ( .0000) ( .0000) ( .0000)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00     420.24
             ( .0000)

     3.00     500.76    71.38
             ( .0000) ( .0000)

     4.00     532.35   163.08    39.24
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00     179.27
             ( .0000)

     3.00     166.88    19.48
             ( .0000) ( .0000)

     4.00     158.35    47.58    13.80
             ( .0000) ( .0000) ( .0002)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00      80.46
             ( .0000)

     3.00      83.38    17.24
             ( .0000) ( .0000)

     4.00      57.50    19.58     3.05
             ( .0000) ( .0000) ( .0805)





Temporary.

* Glass ionomer on molars.

Select if (toothtyp=3 and maintrt = 1426).

KM
  time  by  intgrp /STATUS=reint(1)
    /strata = patageg2
    /print=none
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
    /TEST = LOGRANK
    /COMPARE = PAIRWISE STRATA
    /COMPARE = OVERALL STRATA.

Kaplan-Meier

Notes
Output Created 17-APR-2003 16:07:40
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 20370
Syntax KM
time by intgrp /STATUS=reint(1)
/strata = patageg2
/print=none
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95)
/TEST = LOGRANK
/COMPARE = PAIRWISE STRATA
/COMPARE = OVERALL STRATA.
Resources Elapsed Time 0:00:04.88




 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2904.00      2010.00      1557.00      1347.00      1142.00       969.00       751.00       604.00       518.00
 Standard Error     265.47       303.93       190.45       112.31       106.17       104.41        86.50        51.83        51.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              347.00       250.00       173.00       119.00        52.00
 Standard Error      52.70        30.49        20.07        15.79          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3486.00      3030.00      2627.00      2087.00      1764.00      1454.00      1211.00       952.00
 Standard Error        .            .         176.33       180.55       157.14       109.85        84.53        76.77        61.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              753.00       553.00       385.00       230.00       142.00
 Standard Error      51.12        42.92        32.74        21.02          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3843.00      3843.00      2926.00      2459.00      2051.00      1637.00      1423.00      1109.00
 Standard Error        .            .         798.56       267.65       223.45       200.00       142.44       111.56        95.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              929.00       669.00       494.00       331.00       201.00
 Standard Error      80.65        68.34        47.12        33.78          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 18 to 29
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3532.00      3214.00      2743.00      2516.00      2404.00      1837.00
 Standard Error        .            .            .            .         314.28       216.80       105.95       193.84       225.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1560.00      1255.00       869.00       701.00       490.00
 Standard Error     140.91       141.52        96.77        56.67          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3641.00      2569.00      2010.00      1399.00       979.00       775.00       618.00       491.00       392.00
 Standard Error        .         252.84       277.85       226.43       130.37        74.19        57.01        42.80        39.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              285.00       183.00       120.00        77.00        35.00
 Standard Error      34.69        25.52        14.18         9.83          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3089.00      2447.00      1904.00      1534.00      1299.00      1042.00       802.00       624.00
 Standard Error        .            .         168.74       120.87        78.93        59.57        58.32        45.88        36.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              444.00       344.00       212.00       170.00        89.00
 Standard Error      26.62        20.31        13.23         8.00          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2999.00      2364.00      1688.00      1381.00      1071.00
 Standard Error        .            .            .            .            .         288.27       226.03       129.04        96.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              853.00       665.00       498.00       336.00       189.00
 Standard Error      70.05        55.48        43.92        33.41          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 30 to 39
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3305.00      2913.00      2299.00      1947.00      1526.00
 Standard Error        .            .            .            .            .         343.69       338.64       244.48       161.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1274.00       954.00       769.00       518.00       261.00
 Standard Error     144.50       106.24        74.68        71.96          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             3060.00      1903.00      1536.00      1303.00      1015.00       819.00       629.00       477.00       380.00
 Standard Error     271.97       194.10       124.10       102.52        91.44        71.24        60.78        42.57        32.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              279.00       189.00       119.00        70.00        35.00
 Standard Error      28.79        21.61        14.61         8.66          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2879.00      2354.00      1886.00      1475.00      1119.00       880.00       707.00       539.00
 Standard Error        .            .         131.43       110.07        90.34        67.12        44.32        35.37        27.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              427.00       330.00       237.00       173.00        80.00
 Standard Error      19.09        15.86        11.63         9.93          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2928.00      2657.00      2421.00      1772.00      1344.00      1129.00       897.00
 Standard Error        .            .            .         156.10       220.08       236.60       139.99        92.26        84.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              691.00       518.00       347.00       250.00       126.00
 Standard Error      65.56        54.72        36.80        25.47          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 40 to 49
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3486.00      3291.00      2829.00      2207.00      1727.00      1376.00
 Standard Error        .            .            .            .         306.11       374.52       342.16       248.01       173.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1085.00       883.00       692.00       519.00       309.00
 Standard Error     116.97        83.82        69.02        61.05          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value             2016.00      1488.00      1218.00      1027.00       865.00       633.00       547.00       431.00       346.00
 Standard Error     268.95       109.71        88.65        65.09        65.29        55.76        33.59        32.25        28.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              256.00       178.00       133.00        79.00        35.00
 Standard Error      23.80        16.38        11.78         9.59          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2822.00      2211.00      1903.00      1500.00      1208.00       945.00       799.00       624.00
 Standard Error        .         212.13       135.10        98.79        93.54        71.04        49.76        37.25        31.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              512.00       378.00       266.00       186.00       102.00
 Standard Error      24.89        22.40        15.65        11.18          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3538.00      3093.00      2238.00      2011.00      1799.00      1369.00      1126.00
 Standard Error        .            .            .         405.42       333.86       142.59       160.30       168.72       118.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              859.00       670.00       485.00       327.00       207.00
 Standard Error      92.38        70.09        55.33        38.69          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 50 to 59
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3528.00      3528.00      3085.00      2596.00      2064.00      1955.00
 Standard Error        .            .            .            .         568.68       439.38       399.65       409.43       257.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1295.00      1057.00       980.00       581.00       313.00
 Standard Error     301.72       109.50       131.81       132.33          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2023.00      1547.00      1258.00       996.00       813.00       615.00       532.00       428.00
 Standard Error        .         356.47       178.72       120.71        95.64        81.44        61.21        36.89        37.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              334.00       213.00       168.00       102.00        54.00
 Standard Error      37.57        25.57        15.91        13.28          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3787.00      2828.00      1964.00      1664.00      1307.00      1043.00       811.00       678.00
 Standard Error        .            .         281.53       188.79        98.51        89.57        67.53        48.11        43.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              456.00       365.00       238.00       176.00        84.00
 Standard Error      35.30        23.24        17.36        11.84          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2670.00      2272.00      1916.00      1485.00      1282.00      1015.00       840.00
 Standard Error        .            .            .         376.86       280.42       213.25       159.12       146.46       131.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              601.00       468.00       403.00       302.00       180.00
 Standard Error     106.95        49.79        36.72        40.21          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 60 to 69
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2891.00      2465.00      2331.00      1968.00      1589.00      1386.00
 Standard Error        .            .            .            .         366.86       356.20       391.29       315.30       180.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1144.00       890.00       681.00       516.00       318.00
 Standard Error     188.93       172.35       125.86        95.06          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = under 150 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2072.00      1543.00      1214.00      1021.00       773.00       616.00       507.00       369.00
 Standard Error        .         459.24       230.01       145.29       107.29        98.91        61.14        54.86        47.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              280.00       217.00       161.00        95.00        52.00
 Standard Error      30.46        21.88        20.34        14.85          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 150 to 249 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3097.00      2194.00      1722.00      1435.00      1147.00       875.00       721.00
 Standard Error        .            .            .         281.11       149.18       115.37        93.36        69.47        49.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              554.00       403.00       329.00       187.00       117.00
 Standard Error      46.06        28.72        24.08        19.82          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 250 to 399 days




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2085.00      1784.00      1546.00      1245.00      1117.00
 Standard Error        .            .            .            .            .         268.12       219.12       159.98       129.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              897.00       632.00       480.00       289.00       189.00
 Standard Error     178.21       121.12        89.89        62.20          .



 Survival Analysis for TIME     Time to reintervention

 Strata PATAGEG2 = 70 or older
 Factor INTGRP = 400 days or longer




                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        2792.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2471.00      1349.00       939.00       874.00       427.00
 Standard Error     997.35       889.69       397.52       232.70          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                  2974      1116       1858        62.47
  INTGRP        under 150 days           520       242        278        53.46
  INTGRP        150 to 249 days         1257       510        747        59.43
  INTGRP        250 to 399 days          671       240        431        64.23
  INTGRP        400 days or longer       526       124        402        76.43

PATAGEG2      30 to 39                  4171      1715       2456        58.88
  INTGRP        under 150 days           678       339        339        50.00
  INTGRP        150 to 249 days         2197      1000       1197        54.48
  INTGRP        250 to 399 days          783       254        529        67.56
  INTGRP        400 days or longer       513       122        391        76.22

PATAGEG2      40 to 49                  4333      1948       2385        55.04
  INTGRP        under 150 days           836       442        394        47.13
  INTGRP        150 to 249 days         2387      1124       1263        52.91
  INTGRP        250 to 399 days          700       260        440        62.86
  INTGRP        400 days or longer       410       122        288        70.24

PATAGEG2      50 to 59                  3737      1657       2080        55.66
  INTGRP        under 150 days           929       520        409        44.03
  INTGRP        150 to 249 days         2006       905       1101        54.89
  INTGRP        250 to 399 days          527       174        353        66.98
  INTGRP        400 days or longer       275        58        217        78.91

PATAGEG2      60 to 69                  2663      1172       1491        55.99
  INTGRP        under 150 days           645       333        312        48.37
  INTGRP        150 to 249 days         1569       686        883        56.28
  INTGRP        250 to 399 days          288       112        176        61.11
  INTGRP        400 days or longer       161        41        120        74.53

PATAGEG2      70 or older               1815       731       1084        59.72
  INTGRP        under 150 days           491       251        240        48.88
  INTGRP        150 to 249 days         1067       407        660        61.86
  INTGRP        250 to 399 days          190        62        128        67.37
  INTGRP        400 days or longer        67        11         56        83.58

Overall                                19693      8339      11354        57.66


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 18 to 29

               Statistic        df       Significance

 Log Rank         131.80        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 30 to 39

               Statistic        df       Significance

 Log Rank         136.83        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 40 to 49

               Statistic        df       Significance

 Log Rank         113.70        3           .0000





 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 50 to 59

               Statistic        df       Significance

 Log Rank         183.04        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 60 to 69

               Statistic        df       Significance

 Log Rank          46.18        3           .0000


 Test Statistics for Equality of Survival Distributions for INTGRP
 For PATAGEG2 = 70 or older

               Statistic        df       Significance

 Log Rank          54.29        3           .0000




 Log Rank Statistic and (Significance)
 For PATAGEG2 = 18 to 29

 Factor         1.00     2.00     3.00

     2.00      46.96
             ( .0000)

     3.00      56.83     3.45
             ( .0000) ( .0634)

     4.00     125.64    38.25    18.71
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 30 to 39

 Factor         1.00     2.00     3.00

     2.00      17.75
             ( .0000)

     3.00      74.78    40.78
             ( .0000) ( .0000)

     4.00      93.20    59.42     6.15
             ( .0000) ( .0000) ( .0131)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00      24.09
             ( .0000)

     3.00      54.33    18.71
             ( .0000) ( .0000)

     4.00      90.89    50.48    12.86
             ( .0000) ( .0000) ( .0003)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00      72.76
             ( .0000)

     3.00     104.70    25.17
             ( .0000) ( .0000)

     4.00      96.58    38.29     7.36
             ( .0000) ( .0000) ( .0067)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00      20.98
             ( .0000)

     3.00      17.88     2.37
             ( .0000) ( .1240)

     4.00      30.41    13.62     5.41
             ( .0000) ( .0002) ( .0200)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00      26.42
             ( .0000)

     3.00      22.02     3.44
             ( .0000) ( .0635)

     4.00      26.49    14.00     7.50
             ( .0000) ( .0002) ( .0062)