* Rep_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\Rep_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 27-JUN-2003 15:00:50
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File Tooth type
N of Rows in Working Data File 473373
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 0:00:15.49




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                 .            .        3079.00      2571.00      2114.00      1609.00      1333.00      1103.00       930.00
 Standard Error        .            .            .         265.91       276.28       215.87       138.72       105.82        72.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              791.00       628.00       456.00       244.00       134.00
 Standard Error      73.50        71.57        71.88        50.81          .



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                 .        3582.00      3149.00      2162.00      1775.00      1478.00      1227.00      1015.00       822.00
 Standard Error        .            .         404.69       376.02       182.94       144.94       121.12       102.84        75.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              685.00       499.00       385.00       242.00       130.00
 Standard Error      71.18        61.42        46.64        38.84          .



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                 .            .        2557.00      2177.00      1855.00      1689.00      1498.00      1147.00       886.00
 Standard Error        .            .            .         223.77       148.05       104.77       152.45       162.79       118.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              693.00       566.00       432.00       266.00       189.00
 Standard Error      79.03        57.97        58.54        40.40          .



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                 .            .        2817.00      2699.00      1971.00      1721.00      1414.00      1073.00       847.00
 Standard Error        .            .            .         278.30       303.58       195.51       195.34       159.59       106.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              692.00       531.00       447.00       286.00       181.00
 Standard Error      85.12        58.53        49.91        46.91          .



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                 .            .            .        2440.00      2173.00      1807.00      1513.00      1205.00       930.00
 Standard Error        .            .            .            .         204.11       219.50       184.02       169.25       134.68

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              710.00       525.00       379.00       219.00       127.00
 Standard Error     109.05        80.68        65.08        44.35          .



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                 .            .            .            .        1673.00      1352.00      1145.00       836.00       718.00
 Standard Error        .            .            .            .            .         177.88       166.46       129.85        78.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              594.00       405.00       294.00       196.00        85.00
 Standard Error      87.84        75.93        48.41        40.38          .



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                 .            .            .            .            .        1504.00      1271.00       815.00       684.00
 Standard Error        .            .            .            .            .            .         225.89       184.33       107.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              469.00       375.00       224.00       130.00        67.00
 Standard Error      88.52        67.96        58.04        31.78          .



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                 .            .            .            .            .            .            .        1174.00       862.00
 Standard Error        .            .            .            .            .            .            .            .         146.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              696.00       520.00       406.00       214.00        85.00
 Standard Error      96.63        85.72        75.10        64.45          .



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                 .            .            .            .            .        1015.00       996.00       856.00       649.00
 Standard Error        .            .            .            .            .            .          91.55       114.25       101.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       399.00       346.00       246.00       126.00
 Standard Error      73.47        60.41        42.19        49.33          .



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              606.00       425.00       273.00       174.00        71.00
 Standard Error        .         113.19        83.32        46.56          .



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                 .            .            .         225.00       154.00
 Standard Error        .            .            .            .            .



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                 .            .            .        3349.00      2612.00      2221.00      1964.00      1463.00      1140.00
 Standard Error        .            .            .            .         613.39       540.31       438.73       460.28       322.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              835.00       663.00       429.00       336.00       176.00
 Standard Error     252.60       168.72       143.77        90.51          .



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                 .            .            .            .        2030.00      1830.00      1103.00       969.00       842.00
 Standard Error        .            .            .            .            .         510.33       513.39       177.27       150.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              761.00       633.00       414.00       296.00       182.00
 Standard Error     104.19       173.01       139.27        85.16          .



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                 .            .            .            .        2547.00      2240.00      1735.00      1444.00      1037.00
 Standard Error        .            .            .            .            .         584.58       635.09       458.07       423.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              777.00       491.00       355.00       177.00       118.00
 Standard Error     324.43       228.95       132.23        83.08          .



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                 .            .            .        2764.00      2393.00      2049.00      1768.00      1303.00      1107.00
 Standard Error        .            .            .            .         361.12       439.76       449.34       346.39       338.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              966.00       727.00       596.00       295.00       212.00
 Standard Error     219.62       271.94       201.27       132.10          .



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                 .            .            .            .            .        2311.00      2002.00      1328.00       903.00
 Standard Error        .            .            .            .            .            .         581.42       579.00       399.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              770.00       549.00       312.00       246.00        91.00
 Standard Error     240.87       196.38       125.71        96.57          .



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                 .            .            .            .            .        1698.00      1582.00      1365.00       998.00
 Standard Error        .            .            .            .            .            .         216.73       291.59       388.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              772.00       620.00       450.00       239.00        91.00
 Standard Error     225.84       142.75       166.22       135.36          .



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                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1147.00      1046.00       730.00       706.00       259.00
 Standard Error        .         248.80       230.94       283.92          .



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                 .            .            .        1254.00      1254.00      1057.00      1034.00       857.00       610.00
 Standard Error        .            .            .            .         172.96       127.83       285.22       383.49       339.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              414.00       315.00       310.00       238.00       133.00
 Standard Error     179.45        61.48        75.81        74.91          .



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             1064.00      1064.00      1064.00      1064.00      1064.00      1064.00       927.00       927.00       894.00
 Standard Error        .            .            .            .            .            .          25.98        65.66       119.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              851.00       684.00       634.00       430.00       189.00
 Standard Error     116.50       124.84       151.46       225.09          .



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                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .            .         456.00       413.00
 Standard Error        .            .            .            .            .



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                 .            .            .            .         175.00
 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                 .            .            .        3422.00      2731.00      2218.00      1829.00      1448.00      1148.00
 Standard Error        .            .            .            .          73.58        53.75        44.33        37.58        27.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              910.00       680.00       509.00       346.00       187.00
 Standard Error      22.78        17.59        12.98        10.38          .



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                 .            .            .        3093.00      2519.00      2110.00      1739.00      1412.00      1122.00
 Standard Error        .            .            .            .          58.82        45.51        39.31        33.47        28.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       662.00       496.00       343.00       185.00
 Standard Error      22.10        15.66        12.31         9.91          .



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                 .            .            .        3005.00      2420.00      1975.00      1593.00      1291.00      1048.00
 Standard Error        .            .            .            .          62.99        49.70        39.73        30.47        24.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              826.00       618.00       448.00       286.00       167.00
 Standard Error      21.24        17.06        13.08         9.24          .



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                 .            .            .            .        2524.00      2031.00      1656.00      1316.00      1028.00
 Standard Error        .            .            .            .            .          51.57        41.23        34.74        27.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              797.00       605.00       424.00       265.00       159.00
 Standard Error      20.82        16.65        13.37         8.72          .



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                 .            .            .            .        2492.00      1974.00      1575.00      1246.00       987.00
 Standard Error        .            .            .            .            .          54.85        42.32        32.84        24.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              788.00       602.00       427.00       264.00       148.00
 Standard Error      19.09        16.17        13.48         9.20          .



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                 .            .            .            .            .        2142.00      1720.00      1382.00      1077.00
 Standard Error        .            .            .            .            .            .          43.84        35.59        29.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              829.00       624.00       440.00       286.00       151.00
 Standard Error      22.29        17.41        13.35         9.46          .



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                 .            .            .            .            .            .        1666.00      1298.00      1024.00
 Standard Error        .            .            .            .            .            .            .          35.22        26.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              784.00       583.00       402.00       233.00       131.00
 Standard Error      21.40        16.92        13.66         8.80          .



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                 .            .            .            .            .            .            .        1301.00       995.00
 Standard Error        .            .            .            .            .            .            .            .          27.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              760.00       565.00       394.00       243.00       131.00
 Standard Error      20.67        16.13        12.49         8.48          .



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                 .            .            .            .            .            .            .            .        1068.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              756.00       575.00       408.00       255.00       141.00
 Standard Error      23.83        15.35        12.51         8.72          .



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                 .         616.00       412.00       239.00       129.00
 Standard Error        .            .          14.74         9.26          .



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                 .            .            .         281.00       160.00
 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                 .        3579.00      2954.00      2383.00      1957.00      1696.00      1371.00      1126.00       920.00
 Standard Error        .            .         148.10       122.18        83.01        71.20        65.22        49.56        41.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              724.00       567.00       434.00       297.00       175.00
 Standard Error      34.27        26.16        20.99        16.62          .



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                 .            .        3115.00      2619.00      2132.00      1710.00      1471.00      1205.00      1006.00
 Standard Error        .            .            .         119.14       107.68        76.24        57.02        50.84        42.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              792.00       601.00       415.00       273.00       163.00
 Standard Error      38.75        32.88        24.87        16.04          .



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                 .            .        3038.00      2520.00      2066.00      1674.00      1363.00      1151.00       945.00
 Standard Error        .            .            .         106.85        91.41        74.95        54.22        42.08        36.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              763.00       598.00       424.00       265.00       168.00
 Standard Error      30.91        27.28        23.56        15.10          .



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                 .            .            .        2662.00      2198.00      1807.00      1442.00      1149.00       902.00
 Standard Error        .            .            .            .          95.75        83.14        69.71        55.11        43.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              698.00       535.00       382.00       255.00       152.00
 Standard Error      32.90        25.91        20.16        14.17          .



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                 .            .            .            .        2083.00      1743.00      1365.00      1108.00       908.00
 Standard Error        .            .            .            .            .          83.19        70.85        49.55        38.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              733.00       541.00       399.00       279.00       150.00
 Standard Error      34.80        29.12        20.06        15.62          .



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                 .            .            .            .            .        1861.00      1455.00      1166.00       890.00
 Standard Error        .            .            .            .            .            .          77.92        61.43        48.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              693.00       542.00       370.00       245.00       140.00
 Standard Error      33.51        28.20        23.11        14.81          .



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                 .            .            .            .            .            .        1455.00      1162.00       939.00
 Standard Error        .            .            .            .            .            .            .          61.78        49.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              728.00       525.00       385.00       269.00       164.00
 Standard Error      43.42        32.30        21.73        15.71          .



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                 .            .            .            .            .            .        1165.00       980.00       747.00
 Standard Error        .            .            .            .            .            .            .          50.77        42.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              612.00       473.00       351.00       233.00       175.00
 Standard Error      29.94        25.65        20.85        12.88          .



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                 .            .            .            .            .            .            .        1043.00       781.00
 Standard Error        .            .            .            .            .            .            .            .          46.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              617.00       448.00       335.00       196.00       114.00
 Standard Error      35.79        28.45        21.99        16.09          .



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              554.00       412.00       292.00       204.00       150.00
 Standard Error        .          26.80        18.64        11.01          .



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                 .            .            .         197.00       103.00
 Standard Error        .            .            .            .            .



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

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                 2831    1214     1617      57.12
  YEARPLAC     1991.00                              375     189      186      49.60
  YEARPLAC     1992.00                              388     194      194      50.00
  YEARPLAC     1993.00                              325     172      153      47.08
  YEARPLAC     1994.00                              289     138      151      52.25
  YEARPLAC     1995.00                              284     130      154      54.23
  YEARPLAC     1996.00                              230     110      120      52.17
  YEARPLAC     1997.00                              221      95      126      57.01
  YEARPLAC     1998.00                              222      71      151      68.02
  YEARPLAC     1999.00                              185      67      118      63.78
  YEARPLAC     2000.00                              161      37      124      77.02
  YEARPLAC     2001.00                              151      11      140      92.72

MAINTRT     Two surface amalgam, not MO or DO       534     209      325      60.86
  YEARPLAC     1991.00                               81      36       45      55.56
  YEARPLAC     1992.00                               60      27       33      55.00
  YEARPLAC     1993.00                               57      26       31      54.39
  YEARPLAC     1994.00                               56      27       29      51.79
  YEARPLAC     1995.00                               63      27       36      57.14
  YEARPLAC     1996.00                               60      26       34      56.67
  YEARPLAC     1997.00                               32       8       24      75.00
  YEARPLAC     1998.00                               35      16       19      54.29
  YEARPLAC     1999.00                               38      13       25      65.79
  YEARPLAC     2000.00                               21       2       19      90.48
  YEARPLAC     2001.00                               31       1       30      96.77

MAINTRT     Composite resin                       93002   32293    60709      65.28
  YEARPLAC     1991.00                             8641    3975     4666      54.00
  YEARPLAC     1992.00                             8876    4170     4706      53.02
  YEARPLAC     1993.00                             8307    3826     4481      53.94
  YEARPLAC     1994.00                             8361    3689     4672      55.88
  YEARPLAC     1995.00                             8187    3474     4713      57.57
  YEARPLAC     1996.00                             8352    3176     5176      61.97
  YEARPLAC     1997.00                             8478    3015     5463      64.44
  YEARPLAC     1998.00                             8615    2747     5868      68.11
  YEARPLAC     1999.00                             8445    2195     6250      74.01
  YEARPLAC     2000.00                             8395    1479     6916      82.38
  YEARPLAC     2001.00                             8345     547     7798      93.45

MAINTRT     Glass ionomer                         21670    8786    12884      59.46
  YEARPLAC     1991.00                             2110    1123      987      46.78
  YEARPLAC     1992.00                             2226    1101     1125      50.54
  YEARPLAC     1993.00                             2594    1289     1305      50.31
  YEARPLAC     1994.00                             2467    1133     1334      54.07
  YEARPLAC     1995.00                             2208     991     1217      55.12
  YEARPLAC     1996.00                             2144     875     1269      59.19
  YEARPLAC     1997.00                             1788     668     1120      62.64
  YEARPLAC     1998.00                             1673     633     1040      62.16
  YEARPLAC     1999.00                             1597     497     1100      68.88
  YEARPLAC     2000.00                             1547     363     1184      76.54
  YEARPLAC     2001.00                             1316     113     1203      91.41

Overall                                          118037   42502    75535      63.99


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

               Statistic        df       Significance

 Log Rank           7.25        10          .7013





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           7.54        10          .6737


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

               Statistic        df       Significance

 Log Rank          32.10        10          .0004


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

               Statistic        df       Significance

 Log Rank          38.70        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        .36
             ( .5484)

  1993.00        .35      .01
             ( .5546) ( .9343)

  1994.00        .01      .22      .44
             ( .9225) ( .6371) ( .5048)

  1995.00        .01      .49      .39      .00
             ( .9372) ( .4833) ( .5340) ( .9974)

  1996.00       1.56      .16      .57      .94     1.70
             ( .2123) ( .6857) ( .4492) ( .3331) ( .1917)

  1997.00       1.09      .24     1.44     1.23     1.52      .03
             ( .2959) ( .6262) ( .2307) ( .2673) ( .2175) ( .8519)

  1998.00        .17      .75      .02      .23      .01     2.22     2.12
             ( .6779) ( .3857) ( .9008) ( .6321) ( .9055) ( .1364) ( .1451)

  1999.00       4.48     1.46     3.46     2.34     2.97      .15      .02     2.09
             ( .0343) ( .2270) ( .0627) ( .1258) ( .0846) ( .7032) ( .8996) ( .1479)

  2000.00       2.50      .54     1.37     1.00      .71      .02      .35      .52      .09
             ( .1137) ( .4610) ( .2415) ( .3185) ( .4008) ( .8945) ( .5569) ( .4700) ( .7656)

  2001.00        .03      .00      .45      .25      .02      .37     2.08      .03      .01     1.25
             ( .8585) ( .9702) ( .5004) ( .6180) ( .8847) ( .5448) ( .1494) ( .8665) ( .9186) ( .2645)





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        .11
             ( .7393)

  1993.00        .11      .03
             ( .7399) ( .8571)

  1994.00        .15      .05      .00
             ( .7005) ( .8252) ( .9559)

  1995.00        .02      .22      .00      .00
             ( .8850) ( .6367) ( .9556) ( .9880)

  1996.00        .37      .11      .04      .11      .14
             ( .5435) ( .7435) ( .8406) ( .7406) ( .7040)

  1997.00       1.15     2.48     1.46     1.07     1.08     2.18
             ( .2832) ( .1154) ( .2276) ( .3016) ( .2988) ( .1396)

  1998.00       3.21      .84     1.75     2.82     1.96     2.44     4.48
             ( .0730) ( .3608) ( .1855) ( .0930) ( .1614) ( .1184) ( .0343)

  1999.00       1.05      .11      .51     1.30      .35      .68     3.21      .03
             ( .3065) ( .7390) ( .4745) ( .2536) ( .5514) ( .4106) ( .0734) ( .8613)

  2000.00        .67      .78     1.41      .48     1.39      .77      .08     2.80      .20
             ( .4145) ( .3759) ( .2350) ( .4880) ( .2391) ( .3796) ( .7822) ( .0940) ( .6584)

  2001.00        .16      .04      .46      .05      .61      .29      .05      .50      .00     1.40
             ( .6872) ( .8352) ( .4967) ( .8255) ( .4343) ( .5871) ( .8290) ( .4803) ( .9704) ( .2367)


 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       5.94
             ( .0148)

  1993.00      13.66     2.59
             ( .0002) ( .1076)

  1994.00       9.81     1.48      .28
             ( .0017) ( .2233) ( .5989)

  1995.00      14.13     4.39      .00      .31
             ( .0002) ( .0362) ( .9708) ( .5752)

  1996.00       3.55      .11     4.28     2.73     6.34
             ( .0596) ( .7363) ( .0385) ( .0982) ( .0118)

  1997.00      10.98     4.69      .28      .00     1.05     1.96
             ( .0009) ( .0303) ( .5986) ( .9514) ( .3046) ( .1618)

  1998.00      17.50    11.27      .51      .50      .22     4.61      .11
             ( .0000) ( .0008) ( .4758) ( .4774) ( .6388) ( .0317) ( .7400)

  1999.00      17.26     8.69     1.40      .07      .31     2.71      .01      .79
             ( .0000) ( .0032) ( .2371) ( .7932) ( .5795) ( .0997) ( .9173) ( .3745)

  2000.00      12.21     7.92      .21      .26      .28      .33     2.13     4.34     2.76
             ( .0005) ( .0049) ( .6466) ( .6096) ( .5987) ( .5685) ( .1445) ( .0372) ( .0967)




  2001.00      16.62    14.11      .43      .39      .37      .12     6.18     4.92     1.87     5.78
             ( .0000) ( .0002) ( .5115) ( .5312) ( .5457) ( .7304) ( .0129) ( .0265) ( .1717) ( .0162)


 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       1.18
             ( .2765)

  1993.00        .28      .28
             ( .5973) ( .5986)

  1994.00       1.56      .01      .48
             ( .2110) ( .9276) ( .4873)

  1995.00        .27      .57      .03      .36
             ( .6018) ( .4508) ( .8567) ( .5463)

  1996.00       2.22      .11      .75      .23      .65
             ( .1363) ( .7371) ( .3867) ( .6352) ( .4185)

  1997.00        .95      .11      .72      .18      .58      .13
             ( .3309) ( .7371) ( .3956) ( .6755) ( .4475) ( .7228)

  1998.00       4.84    11.46     6.90     6.75     4.61     6.56     7.25
             ( .0279) ( .0007) ( .0086) ( .0094) ( .0317) ( .0104) ( .0071)

  1999.00       4.38    10.59     7.16     3.33     4.07     2.69     4.56      .14
             ( .0364) ( .0011) ( .0074) ( .0679) ( .0437) ( .1008) ( .0326) ( .7049)

  2000.00      13.14    16.58    18.13     6.77     9.25     6.25     7.19      .86      .43
             ( .0003) ( .0000) ( .0000) ( .0093) ( .0024) ( .0124) ( .0073) ( .3534) ( .5123)

  2001.00       7.26     4.42     4.13     1.83     3.64     1.01     3.08      .85      .26      .36
             ( .0071) ( .0354) ( .0421) ( .1759) ( .0564) ( .3139) ( .0792) ( .3554) ( .6090) ( .5476)







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                 .            .            .            .            .        3305.00      2662.00      1994.00      1426.00
 Standard Error        .            .            .            .            .            .         196.99       175.39       126.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1048.00       834.00       643.00       401.00       208.00
 Standard Error      74.14        46.86        42.78        35.86          .



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                 .            .            .            .        3470.00      2697.00      2136.00      1719.00      1358.00
 Standard Error        .            .            .            .            .         212.73       148.02       113.21        94.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1029.00       828.00       629.00       451.00       244.00
 Standard Error      68.33        47.51        39.29        32.86          .



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                 .            .            .            .            .        3229.00      2540.00      2024.00      1464.00
 Standard Error        .            .            .            .            .            .         179.14       162.75       126.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1134.00       873.00       588.00       378.00       180.00
 Standard Error      76.86        64.35        52.29        35.20          .



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                 .            .            .            .            .            .        2638.00      2054.00      1651.00
 Standard Error        .            .            .            .            .            .            .         154.11       116.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1270.00       951.00       660.00       360.00       182.00
 Standard Error      96.69        77.52        64.01        42.79          .



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                 .            .            .            .            .            .            .        1705.00      1323.00
 Standard Error        .            .            .            .            .            .            .            .         105.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1029.00       712.00       511.00       316.00       182.00
 Standard Error      88.28        69.23        46.65        32.10          .



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                 .            .            .            .            .            .            .        2021.00      1480.00
 Standard Error        .            .            .            .            .            .            .            .         160.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1037.00       830.00       592.00       373.00       196.00
 Standard Error     100.65        62.10        55.57        39.42          .



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                 .            .            .            .            .            .            .            .        1475.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1084.00       800.00       531.00       378.00       179.00
 Standard Error     106.25        79.00        55.04        37.49          .



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                 .            .            .            .            .            .            .            .        1228.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              915.00       673.00       472.00       297.00       145.00
 Standard Error      84.64        62.03        45.32        33.19          .



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              991.00       763.00       518.00       343.00       175.00
 Standard Error        .          72.95        57.46        37.80          .



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                 .         660.00       491.00       314.00       175.00
 Standard Error        .            .          47.08        34.55          .



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                 .            .            .            .         232.00
 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                 .        3271.00      2634.00      2185.00      1920.00      1514.00      1344.00       928.00       779.00
 Standard Error        .            .         484.17       313.54       279.26       250.13       222.02       227.23       127.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              585.00       517.00       418.00       324.00       239.00
 Standard Error      95.17        58.02        51.02        48.00          .



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                 .            .            .        3388.00      2747.00      1730.00      1260.00       973.00       787.00
 Standard Error        .            .            .            .         614.46       589.20       311.33       172.92       131.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              607.00       480.00       324.00       258.00       126.00
 Standard Error     106.26        93.23        63.75        48.50          .



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                 .        2661.00      2234.00      2030.00      1519.00      1402.00      1146.00       903.00       707.00
 Standard Error        .         333.73       304.33       304.96       250.95       176.32       191.12       167.59       118.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              595.00       399.00       245.00       195.00        86.00
 Standard Error     105.59       105.22        57.42        39.02          .



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                 .            .        2498.00      2151.00      1693.00      1446.00       910.00       744.00       572.00
 Standard Error        .            .            .         381.13       367.51       376.32       302.65       134.76       117.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              477.00       271.00       198.00       141.00        74.00
 Standard Error     116.20        88.59        42.61        32.82          .



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                 .        2357.00      2251.00      1838.00      1707.00      1458.00      1170.00       913.00       694.00
 Standard Error        .            .         246.51       265.55       194.24       236.39       259.37       189.81       131.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              581.00       345.00       272.00       176.00        78.00
 Standard Error     129.53       105.93        57.55        48.11          .



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                 .            .            .            .            .            .        1953.00      1221.00       960.00
 Standard Error        .            .            .            .            .            .            .         407.79       164.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              875.00       575.00       413.00       301.00       109.00
 Standard Error     167.55       181.52        97.14        89.31          .



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                 .            .            .            .            .            .        1705.00      1253.00       972.00
 Standard Error        .            .            .            .            .            .            .         263.52       201.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              779.00       568.00       466.00       182.00        96.00
 Standard Error     153.80       128.25       112.69        97.02          .



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                 .            .            .            .            .        1344.00      1300.00      1050.00       871.00
 Standard Error        .            .            .            .            .            .         179.66       182.93       136.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              769.00       654.00       352.00       199.00        92.00
 Standard Error     127.68       182.54       138.97        66.29          .



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                 .            .            .            .            .            .        1008.00       790.00       664.00
 Standard Error        .            .            .            .            .            .            .         135.73        57.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              652.00       483.00       364.00       222.00       161.00
 Standard Error      97.04       113.49        92.90        66.39          .



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                 .            .            .            .            .            .            .            .         686.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              686.00       497.00       321.00       232.00       113.00
 Standard Error     227.05       100.00        96.94        60.64          .



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                 .            .            .         211.00       130.00
 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                 .            .            .            .            .        3339.00      2716.00      2194.00      1735.00
 Standard Error        .            .            .            .            .            .          87.74        71.88        55.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1398.00      1096.00       795.00       526.00       270.00
 Standard Error      41.14        35.22        29.31        22.22          .



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                 .            .            .            .            .        3180.00      2620.00      2165.00      1670.00
 Standard Error        .            .            .            .            .            .          76.99        68.57        59.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1292.00      1005.00       721.00       460.00       245.00
 Standard Error      42.26        32.98        27.65        19.86          .



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                 .            .            .            .            .        3226.00      2597.00      2058.00      1670.00
 Standard Error        .            .            .            .            .            .          88.95        68.27        52.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1297.00       954.00       691.00       456.00       224.00
 Standard Error      46.22        35.59        25.72        19.70          .



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                 .            .            .            .            .            .        2677.00      2158.00      1688.00
 Standard Error        .            .            .            .            .            .            .          73.54        61.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1288.00       973.00       697.00       468.00       244.00
 Standard Error      47.00        35.36        26.57        19.61          .



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                 .            .            .            .            .            .            .        1908.00      1595.00
 Standard Error        .            .            .            .            .            .            .            .          48.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1260.00       982.00       723.00       466.00       204.00
 Standard Error      42.33        33.79        28.49        23.34          .



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                 .            .            .            .            .            .            .        1958.00      1563.00
 Standard Error        .            .            .            .            .            .            .            .          55.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1224.00       938.00       647.00       434.00       213.00
 Standard Error      44.33        36.76        28.43        20.06          .



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                 .            .            .            .            .            .            .            .        1554.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1228.00       917.00       632.00       434.00       210.00
 Standard Error      45.23        38.89        27.30        19.91          .



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             1151.00       828.00       576.00       364.00       187.00
 Standard Error        .          37.38        26.14        18.40          .



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                 .         825.00       573.00       361.00       174.00
 Standard Error        .            .          27.55        19.49          .



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                 .            .         620.00       392.00       191.00
 Standard Error        .            .            .          21.46          .



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                 .            .            .            .         209.00
 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                 .            .            .        3740.00      2970.00      2425.00      2057.00      1656.00      1358.00
 Standard Error        .            .            .            .         139.78        93.50        77.29        67.46        53.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1074.00       845.00       588.00       378.00       195.00
 Standard Error      43.85        37.59        31.75        22.04          .



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                 .            .            .            .        3026.00      2498.00      2067.00      1650.00      1315.00
 Standard Error        .            .            .            .            .         101.36        87.46        74.01        57.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       774.00       582.00       366.00       184.00
 Standard Error      47.06        36.70        28.50        22.84          .



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                 .            .            .            .        2805.00      2244.00      1824.00      1494.00      1206.00
 Standard Error        .            .            .            .            .         104.33        77.49        61.62        53.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              923.00       689.00       490.00       303.00       148.00
 Standard Error      45.16        34.55        27.11        20.23          .



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                 .            .            .            .            .        2392.00      1925.00      1512.00      1259.00
 Standard Error        .            .            .            .            .            .          93.52        67.67        51.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              978.00       752.00       540.00       332.00       174.00
 Standard Error      45.36        36.77        30.31        21.66          .



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                 .            .            .            .            .        2321.00      1860.00      1490.00      1244.00
 Standard Error        .            .            .            .            .            .          92.15        65.93        51.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              981.00       749.00       528.00       323.00       144.00
 Standard Error      46.72        39.21        32.32        24.23          .



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                 .            .            .            .            .            .        1950.00      1574.00      1253.00
 Standard Error        .            .            .            .            .            .            .          76.13        62.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              973.00       729.00       535.00       343.00       173.00
 Standard Error      50.45        38.29        29.95        23.08          .



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                 .            .            .            .            .            .            .        1430.00      1149.00
 Standard Error        .            .            .            .            .            .            .            .          53.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              922.00       724.00       537.00       313.00       140.00
 Standard Error      41.63        34.58        32.70        25.90          .



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                 .            .            .            .            .            .            .            .        1136.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              846.00       657.00       457.00       308.00       153.00
 Standard Error      48.58        35.65        28.15        20.56          .



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                 .            .            .            .            .            .            .            .        1038.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              782.00       611.00       413.00       237.00       125.00
 Standard Error      45.25        35.24        31.77        20.17          .



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                 .            .         515.00       286.00       115.00
 Standard Error        .            .            .          29.10          .



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                 .            .            .         321.00       164.00
 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                 .            .            .        3697.00      2986.00      2421.00      1986.00      1512.00      1172.00
 Standard Error        .            .            .            .         186.82       144.44       124.14       106.16        83.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              843.00       639.00       503.00       323.00       186.00
 Standard Error      62.31        36.07        30.03        24.51          .



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                 .            .            .        3543.00      2943.00      2376.00      1947.00      1500.00      1197.00
 Standard Error        .            .            .            .         158.98       142.99       117.25        95.04        68.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              941.00       714.00       509.00       319.00       168.00
 Standard Error      54.37        44.60        35.82        25.31          .



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                 .            .            .            .        2521.00      2045.00      1660.00      1288.00       969.00
 Standard Error        .            .            .            .            .         121.06       103.52        90.44        65.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              756.00       553.00       392.00       245.00       156.00
 Standard Error      48.15        37.67        28.63        18.50          .



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                 .            .            .            .        2854.00      2200.00      1821.00      1456.00      1162.00
 Standard Error        .            .            .            .            .         132.95        94.91        81.46        60.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              937.00       710.00       438.00       259.00       144.00
 Standard Error      49.14        49.14        39.43        21.43          .



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                 .            .            .            .            .        2484.00      1855.00      1391.00      1070.00
 Standard Error        .            .            .            .            .            .         129.86        92.34        65.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              790.00       616.00       442.00       273.00       175.00
 Standard Error      46.70        32.59        28.29        18.46          .



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                 .            .            .            .            .            .        2016.00      1521.00      1189.00
 Standard Error        .            .            .            .            .            .            .          93.89        65.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              916.00       668.00       449.00       298.00       165.00
 Standard Error      52.66        42.48        29.62        19.08          .



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                 .            .            .            .            .            .            .        1522.00      1202.00
 Standard Error        .            .            .            .            .            .            .            .          59.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              936.00       684.00       450.00       259.00       171.00
 Standard Error      48.46        41.73        32.02        17.63          .



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                 .            .            .            .            .            .            .            .        1211.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              889.00       633.00       434.00       282.00       161.00
 Standard Error      54.25        39.29        26.89        17.51          .



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              743.00       556.00       371.00       234.00       115.00
 Standard Error        .          31.50        23.75        15.77          .



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                 .         625.00       415.00       246.00       131.00
 Standard Error        .            .          27.92        17.64          .



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                 .            .            .         235.00       141.00
 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                 .            .            .        3202.00      2707.00      2187.00      1793.00      1441.00      1237.00
 Standard Error        .            .            .            .         143.15       126.52       100.66        71.47        59.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              945.00       741.00       558.00       379.00       189.00
 Standard Error      56.19        39.81        32.39        27.44          .



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                 .            .            .        2960.00      2540.00      1990.00      1574.00      1324.00      1046.00
 Standard Error        .            .            .            .         132.08       127.60        85.85        65.65        57.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              833.00       659.00       493.00       297.00       180.00
 Standard Error      42.44        34.14        32.20        22.63          .



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                 .            .            .            .        2904.00      2181.00      1680.00      1322.00      1072.00
 Standard Error        .            .            .            .            .         148.37       101.26        68.40        50.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              856.00       640.00       470.00       323.00       184.00
 Standard Error      43.27        35.33        25.42        19.21          .



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                 .            .            .            .        2567.00      1985.00      1549.00      1294.00      1086.00
 Standard Error        .            .            .            .            .         125.13        81.66        52.46        51.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              811.00       604.00       406.00       259.00       133.00
 Standard Error      47.98        36.70        27.63        18.10          .



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                 .            .            .            .            .        2380.00      1820.00      1381.00      1105.00
 Standard Error        .            .            .            .            .            .         119.53        83.40        57.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              861.00       652.00       463.00       339.00       186.00
 Standard Error      46.78        37.18        25.84        18.94          .



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                 .            .            .            .            .            .        1691.00      1352.00      1029.00
 Standard Error        .            .            .            .            .            .            .          80.21        65.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              775.00       573.00       387.00       251.00       150.00
 Standard Error      48.75        37.60        27.69        17.09          .



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                 .            .            .            .            .        1583.00      1306.00      1075.00       834.00
 Standard Error        .            .            .            .            .            .          66.16        58.75        51.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              636.00       492.00       368.00       244.00       129.00
 Standard Error      37.80        27.12        22.30        18.06          .



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                 .            .            .            .            .            .            .        1150.00       862.00
 Standard Error        .            .            .            .            .            .            .            .          55.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              679.00       537.00       357.00       220.00       141.00
 Standard Error      37.29        33.33        28.31        16.43          .



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                 .            .            .            .            .            .            .            .         807.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              617.00       465.00       338.00       208.00       144.00
 Standard Error      37.69        28.04        22.85        14.59          .



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                 .         518.00       341.00       200.00       126.00
 Standard Error        .            .          28.83        16.59          .



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                 .            .         316.00       211.00       108.00
 Standard Error        .            .            .          21.24          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                10584    3223     7361      69.55
  YEARPLAC     1991.00                             1329     523      806      60.65
  YEARPLAC     1992.00                             1275     501      774      60.71
  YEARPLAC     1993.00                             1229     445      784      63.79
  YEARPLAC     1994.00                             1107     379      728      65.76
  YEARPLAC     1995.00                              947     324      623      65.79
  YEARPLAC     1996.00                              886     271      615      69.41
  YEARPLAC     1997.00                              800     227      573      71.63
  YEARPLAC     1998.00                              858     243      615      71.68
  YEARPLAC     1999.00                              728     157      571      78.43
  YEARPLAC     2000.00                              765     126      639      83.53
  YEARPLAC     2001.00                              660      27      633      95.91

MAINTRT     Two surface amalgam, not MO or DO      1342     583      759      56.56
  YEARPLAC     1991.00                              154      88       66      42.86
  YEARPLAC     1992.00                              153      76       77      50.33
  YEARPLAC     1993.00                              152      92       60      39.47
  YEARPLAC     1994.00                              125      66       59      47.20
  YEARPLAC     1995.00                              129      75       54      41.86
  YEARPLAC     1996.00                              101      38       63      62.38
  YEARPLAC     1997.00                              128      45       83      64.84
  YEARPLAC     1998.00                              114      40       74      64.91
  YEARPLAC     1999.00                               96      34       62      64.58
  YEARPLAC     2000.00                               95      21       74      77.89
  YEARPLAC     2001.00                               95       8       87      91.58

MAINTRT     MO or DO amalgam                      48462   13696    34766      71.74
  YEARPLAC     1991.00                             5240    1978     3262      62.25
  YEARPLAC     1992.00                             5337    1971     3366      63.07
  YEARPLAC     1993.00                             5110    1841     3269      63.97
  YEARPLAC     1994.00                             4939    1659     3280      66.41
  YEARPLAC     1995.00                             4445    1457     2988      67.22
  YEARPLAC     1996.00                             4316    1305     3011      69.76
  YEARPLAC     1997.00                             4163    1138     3025      72.66
  YEARPLAC     1998.00                             4046     980     3066      75.78
  YEARPLAC     1999.00                             3796     745     3051      80.37
  YEARPLAC     2000.00                             3652     473     3179      87.05
  YEARPLAC     2001.00                             3418     149     3269      95.64

MAINTRT     MOD amalgam                           24316    8401    15915      65.45
  YEARPLAC     1991.00                             2854    1279     1575      55.19
  YEARPLAC     1992.00                             2702    1183     1519      56.22
  YEARPLAC     1993.00                             2637    1152     1485      56.31
  YEARPLAC     1994.00                             2531    1020     1511      59.70
  YEARPLAC     1995.00                             2262     884     1378      60.92
  YEARPLAC     1996.00                             2206     774     1432      64.91
  YEARPLAC     1997.00                             2094     707     1387      66.24
  YEARPLAC     1998.00                             1986     581     1405      70.75
  YEARPLAC     1999.00                             1806     471     1335      73.92
  YEARPLAC     2000.00                             1699     260     1439      84.70
  YEARPLAC     2001.00                             1539      90     1449      94.15

MAINTRT     Composite resin                       21557    6805    14752      68.43
  YEARPLAC     1991.00                             1474     672      802      54.41
  YEARPLAC     1992.00                             1621     724      897      55.34
  YEARPLAC     1993.00                             1466     677      789      53.82
  YEARPLAC     1994.00                             1688     718      970      57.46
  YEARPLAC     1995.00                             1918     737     1181      61.57
  YEARPLAC     1996.00                             2023     713     1310      64.76
  YEARPLAC     1997.00                             2270     749     1521      67.00
  YEARPLAC     1998.00                             2187     620     1567      71.65
  YEARPLAC     1999.00                             2311     612     1699      73.52
  YEARPLAC     2000.00                             2386     423     1963      82.27
  YEARPLAC     2001.00                             2213     160     2053      92.77



MAINTRT     Glass ionomer                         18725    6765    11960      63.87
  YEARPLAC     1991.00                             1617     745      872      53.93
  YEARPLAC     1992.00                             1695     794      901      53.16
  YEARPLAC     1993.00                             1989     856     1133      56.96
  YEARPLAC     1994.00                             2024     867     1157      57.16
  YEARPLAC     1995.00                             1925     742     1183      61.45
  YEARPLAC     1996.00                             1752     662     1090      62.21
  YEARPLAC     1997.00                             1591     647      944      59.33
  YEARPLAC     1998.00                             1564     542     1022      65.35
  YEARPLAC     1999.00                             1600     482     1118      69.88
  YEARPLAC     2000.00                             1519     304     1215      79.99
  YEARPLAC     2001.00                             1449     124     1325      91.44

Overall                                          124986   39473    85513      68.42


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

               Statistic        df       Significance

 Log Rank          13.39        10          .2025


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

               Statistic        df       Significance

 Log Rank          13.97        10          .1743


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

               Statistic        df       Significance

 Log Rank          35.91        10          .0001


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

               Statistic        df       Significance

 Log Rank          24.98        10          .0054


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

               Statistic        df       Significance

 Log Rank          19.16        10          .0383


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

               Statistic        df       Significance

 Log Rank          58.51        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       1.35
             ( .2456)

  1993.00        .00     1.91
             ( .9548) ( .1667)

  1994.00        .04     2.73      .14
             ( .8495) ( .0982) ( .7127)

  1995.00        .89      .08      .49     1.35
             ( .3451) ( .7803) ( .4860) ( .2450)

  1996.00        .00     1.19      .00      .18     1.59
             ( .9878) ( .2763) ( .9662) ( .6686) ( .2074)

  1997.00        .03      .28      .03      .66      .99      .03
             ( .8635) ( .5990) ( .8732) ( .4150) ( .3194) ( .8551)

  1998.00       3.16     2.87     3.62     7.62      .78     2.25     2.93
             ( .0755) ( .0905) ( .0572) ( .0058) ( .3757) ( .1340) ( .0872)

  1999.00        .29      .61      .93     2.98      .00      .20      .11      .72
             ( .5909) ( .4357) ( .3352) ( .0843) ( .9563) ( .6515) ( .7420) ( .3955)

  2000.00       5.15     6.32     2.85     4.75      .22     2.22     1.01      .00      .33
             ( .0233) ( .0119) ( .0912) ( .0293) ( .6363) ( .1364) ( .3142) ( .9674) ( .5670)

  2001.00        .01      .38     1.09     1.09     2.47      .36      .87     3.79     2.26     2.33
             ( .9031) ( .5385) ( .2964) ( .2957) ( .1159) ( .5471) ( .3521) ( .0515) ( .1324) ( .1270)


 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       1.27
             ( .2592)

  1993.00       1.07     4.91
             ( .3010) ( .0268)

  1994.00        .57     2.88      .02
             ( .4502) ( .0894) ( .8805)

  1995.00       1.01     3.78      .09      .07
             ( .3147) ( .0517) ( .7593) ( .7924)

  1996.00       2.06      .78     4.27     4.41     4.56
             ( .1516) ( .3785) ( .0387) ( .0358) ( .0328)

  1997.00        .96      .57     2.97     3.03     2.49      .03
             ( .3271) ( .4507) ( .0849) ( .0816) ( .1143) ( .8671)

  1998.00        .00      .00      .28      .98      .28      .61      .45
             ( .9455) ( .9948) ( .5966) ( .3232) ( .5957) ( .4351) ( .5005)

  1999.00        .30      .32      .02      .46      .01     1.98     1.63      .73
             ( .5840) ( .5710) ( .8785) ( .4972) ( .9419) ( .1590) ( .2014) ( .3926)

  2000.00        .00      .00      .18     1.39      .33      .47      .34      .20      .03
             ( .9668) ( .9805) ( .6736) ( .2389) ( .5634) ( .4915) ( .5616) ( .6520) ( .8640)




  2001.00       1.26      .00      .30     1.87      .70      .26      .00      .06      .05      .03
             ( .2621) ( .9808) ( .5855) ( .1720) ( .4033) ( .6072) ( .9635) ( .8101) ( .8223) ( .8717)


 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       1.26
             ( .2616)

  1993.00       2.69      .02
             ( .1007) ( .8986)

  1994.00        .85      .22      .57
             ( .3556) ( .6393) ( .4510)

  1995.00       4.75     1.21      .55     1.42
             ( .0292) ( .2722) ( .4570) ( .2339)

  1996.00       8.09     3.75     1.14     3.35      .00
             ( .0044) ( .0528) ( .2865) ( .0673) ( .9919)

  1997.00       8.75     2.54     2.17     2.87      .25      .01
             ( .0031) ( .1112) ( .1405) ( .0903) ( .6199) ( .9309)

  1998.00      18.02     5.66     6.03     5.59     3.38     1.29      .87
             ( .0000) ( .0173) ( .0140) ( .0180) ( .0658) ( .2569) ( .3496)

  1999.00      25.55     9.21     6.05     7.35     7.32     2.74     1.03      .17
             ( .0000) ( .0024) ( .0139) ( .0067) ( .0068) ( .0978) ( .3101) ( .6816)

  2000.00      20.86     5.38     3.94     5.22     4.96      .84      .41     1.99     1.89
             ( .0000) ( .0204) ( .0472) ( .0223) ( .0260) ( .3598) ( .5239) ( .1579) ( .1697)

  2001.00       8.58     2.44      .99     2.45      .04      .27      .00     2.40     5.95     1.06
             ( .0034) ( .1184) ( .3191) ( .1172) ( .8421) ( .6012) ( .9833) ( .1212) ( .0147) ( .3041)


 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        .09
             ( .7659)

  1993.00       3.21     2.66
             ( .0732) ( .1027)

  1994.00        .45      .22     1.83
             ( .5025) ( .6424) ( .1765)

  1995.00       1.95     1.56      .52      .08
             ( .1626) ( .2117) ( .4721) ( .7754)

  1996.00       1.09      .51     1.65      .20      .55
             ( .2960) ( .4766) ( .1990) ( .6556) ( .4596)

  1997.00       5.74     3.74      .02      .55      .14     1.18
             ( .0166) ( .0532) ( .8800) ( .4566) ( .7087) ( .2777)

  1998.00       6.83     4.09      .20      .96      .48      .95      .02
             ( .0090) ( .0430) ( .6573) ( .3269) ( .4869) ( .3297) ( .8850)

  1999.00      24.34    16.21     4.74    10.47     8.33     8.75     4.68     1.50
             ( .0000) ( .0001) ( .0296) ( .0012) ( .0039) ( .0031) ( .0304) ( .2212)




  2000.00       3.34     1.37      .61      .05      .01      .02      .00     1.40     5.61
             ( .0675) ( .2424) ( .4343) ( .8258) ( .9062) ( .8996) ( .9616) ( .2367) ( .0178)

  2001.00       3.76     1.05      .22      .07      .08      .13      .12      .23     4.31     1.34
             ( .0524) ( .3048) ( .6419) ( .7983) ( .7711) ( .7234) ( .7258) ( .6310) ( .0378) ( .2472)


 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        .19
             ( .6666)

  1993.00       4.38     3.84
             ( .0364) ( .0499)

  1994.00        .37      .48     2.60
             ( .5451) ( .4897) ( .1067)

  1995.00        .16      .18     3.53      .10
             ( .6913) ( .6689) ( .0601) ( .7572)

  1996.00        .00      .08     6.28      .89      .80
             ( .9461) ( .7712) ( .0122) ( .3448) ( .3702)

  1997.00        .00      .01     5.33      .50     1.44      .00
             ( .9662) ( .9210) ( .0210) ( .4800) ( .2294) ( .9727)

  1998.00        .09      .03     6.01      .41     2.52      .06      .05
             ( .7651) ( .8534) ( .0142) ( .5200) ( .1126) ( .8048) ( .8278)

  1999.00       2.61     7.05      .14     5.45      .96     6.19     7.03     4.06
             ( .1059) ( .0079) ( .7048) ( .0196) ( .3273) ( .0129) ( .0080) ( .0440)

  2000.00        .45     2.90     1.62     1.00      .02      .68      .79      .11     3.41
             ( .5029) ( .0884) ( .2027) ( .3182) ( .8944) ( .4080) ( .3746) ( .7357) ( .0647)

  2001.00       6.11     4.97      .13      .76     2.26     2.95      .99     1.85      .43      .05
             ( .0134) ( .0258) ( .7222) ( .3827) ( .1328) ( .0857) ( .3203) ( .1740) ( .5102) ( .8316)


 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       1.46
             ( .2271)

  1993.00        .03     3.20
             ( .8642) ( .0736)

  1994.00       1.94      .07     1.60
             ( .1635) ( .7910) ( .2053)

  1995.00        .03     2.38      .28     3.99
             ( .8532) ( .1227) ( .5941) ( .0458)

  1996.00        .95      .36      .03     1.01      .54
             ( .3285) ( .5470) ( .8557) ( .3152) ( .4615)

  1997.00      22.19     8.87    13.16     6.53    18.48     9.24
             ( .0000) ( .0029) ( .0003) ( .0106) ( .0000) ( .0024)

  1998.00      15.81     5.06     6.24     2.91     8.26     3.49     1.05
             ( .0001) ( .0245) ( .0125) ( .0879) ( .0041) ( .0618) ( .3059)




  1999.00      25.79    10.80    13.78     9.00    14.36     5.99      .00      .43
             ( .0000) ( .0010) ( .0002) ( .0027) ( .0002) ( .0144) ( .9663) ( .5099)

  2000.00      19.17     8.30     6.19     1.72     7.26      .71      .71      .07     1.50
             ( .0000) ( .0040) ( .0129) ( .1902) ( .0070) ( .3981) ( .4000) ( .7865) ( .2213)

  2001.00      22.76     9.77    12.42     2.20    13.93     2.60      .74      .15      .08      .01
             ( .0000) ( .0018) ( .0004) ( .1383) ( .0002) ( .1070) ( .3903) ( .6971) ( .7806) ( .9075)







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                 .            .            .            .            .            .        3360.00      2674.00      2055.00
 Standard Error        .            .            .            .            .            .            .          83.36        65.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1573.00      1169.00       812.00       553.00       293.00
 Standard Error      48.92        38.24        26.95        18.78          .



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                 .            .            .            .            .            .        3204.00      2612.00      2056.00
 Standard Error        .            .            .            .            .            .            .          74.52        61.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1600.00      1232.00       868.00       593.00       311.00
 Standard Error      46.46        37.45        28.53        20.36          .



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                 .            .            .            .            .            .            .        2630.00      2065.00
 Standard Error        .            .            .            .            .            .            .            .          64.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1594.00      1182.00       840.00       572.00       287.00
 Standard Error      50.97        39.44        27.93        20.86          .



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                 .            .            .            .            .            .            .        2695.00      2063.00
 Standard Error        .            .            .            .            .            .            .            .          69.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1608.00      1235.00       848.00       554.00       273.00
 Standard Error      49.26        40.95        32.22        22.45          .



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                 .            .            .            .            .            .            .            .        2002.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1577.00      1133.00       790.00       514.00       242.00
 Standard Error      54.08        44.50        30.59        22.24          .



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                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1673.00      1238.00       899.00       574.00       273.00
 Standard Error        .          45.58        34.06        26.37          .



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             1754.00      1275.00       916.00       600.00       294.00
 Standard Error        .          49.92        36.19        27.09          .



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                 .        1325.00       886.00       532.00       245.00
 Standard Error        .            .          42.44        28.23          .



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                 .            .         915.00       601.00       317.00
 Standard Error        .            .            .          27.66          .



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                 .            .            .         651.00       281.00
 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                 .            .            .            .         259.00
 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                 .            .            .        3614.00      3041.00      2576.00      2203.00      1754.00      1404.00
 Standard Error        .            .            .            .         144.21       115.43       109.03       100.86        78.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1104.00       810.00       563.00       371.00       185.00
 Standard Error      66.49        55.07        39.38        27.79          .



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                 .            .            .            .        3515.00      2941.00      2393.00      1894.00      1529.00
 Standard Error        .            .            .            .            .         154.51       136.95       109.80        88.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1149.00       847.00       608.00       420.00       201.00
 Standard Error      75.02        54.61        38.08        29.20          .



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                 .            .            .            .            .        2620.00      2071.00      1689.00      1330.00
 Standard Error        .            .            .            .            .            .         123.00        93.00        78.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1036.00       759.00       568.00       371.00       183.00
 Standard Error      63.97        47.03        34.93        28.34          .



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                 .            .            .            .            .            .        2327.00      1833.00      1367.00
 Standard Error        .            .            .            .            .            .            .         127.93        96.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1065.00       778.00       586.00       382.00       189.00
 Standard Error      69.82        51.95        37.10        30.89          .



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                 .            .            .            .            .            .        2352.00      1882.00      1421.00
 Standard Error        .            .            .            .            .            .            .         134.54       116.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1057.00       763.00       551.00       378.00       182.00
 Standard Error      83.69        59.06        39.41        30.84          .



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                 .            .            .            .            .            .            .        1709.00      1324.00
 Standard Error        .            .            .            .            .            .            .            .          90.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       785.00       571.00       386.00       210.00
 Standard Error      68.85        54.33        41.57        30.59          .



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                 .            .            .            .            .            .            .            .        1548.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1235.00       933.00       677.00       378.00       203.00
 Standard Error      79.92        66.53        57.64        40.31          .



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                 .            .            .            .            .            .            .            .        1397.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              995.00       797.00       571.00       386.00       216.00
 Standard Error      79.12        51.85        44.12        31.91          .



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                 .         909.00       630.00       387.00       194.00
 Standard Error        .            .          56.31        40.13          .



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                 .            .         560.00       357.00       197.00
 Standard Error        .            .            .          34.45          .



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                 .            .            .            .         201.00
 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                 .            .            .        3808.00      3140.00      2598.00      2150.00      1751.00      1418.00
 Standard Error        .            .            .            .          71.98        57.58        47.63        39.44        31.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1130.00       866.00       638.00       417.00       217.00
 Standard Error      26.23        21.29        17.11        13.15          .



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                 .            .            .            .        3086.00      2562.00      2089.00      1678.00      1356.00
 Standard Error        .            .            .            .            .          57.27        48.99        38.82        30.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1064.00       820.00       598.00       397.00       202.00
 Standard Error      25.11        19.81        15.89        12.23          .



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                 .            .            .            .        3093.00      2569.00      2093.00      1694.00      1306.00
 Standard Error        .            .            .            .            .          56.85        48.14        41.58        33.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1021.00       777.00       567.00       380.00       189.00
 Standard Error      24.64        19.28        14.87        11.70          .



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                 .            .            .            .            .        2630.00      2093.00      1685.00      1339.00
 Standard Error        .            .            .            .            .            .          53.25        40.64        33.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1027.00       768.00       550.00       358.00       182.00
 Standard Error      27.10        20.66        15.57        11.49          .



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                 .            .            .            .            .            .        2144.00      1733.00      1385.00
 Standard Error        .            .            .            .            .            .            .          42.05        33.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1096.00       805.00       573.00       373.00       186.00
 Standard Error      28.33        23.33        16.88        12.49          .



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                 .            .            .            .            .            .            .        1721.00      1357.00
 Standard Error        .            .            .            .            .            .            .            .          35.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1051.00       781.00       547.00       357.00       175.00
 Standard Error      28.45        22.61        16.75        12.12          .



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                 .            .            .            .            .            .            .        1812.00      1351.00
 Standard Error        .            .            .            .            .            .            .            .          40.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1038.00       772.00       562.00       363.00       187.00
 Standard Error      29.25        21.86        16.58        12.53          .



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                 .            .            .            .            .            .            .            .        1311.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1021.00       770.00       540.00       354.00       172.00
 Standard Error      27.58        22.40        17.07        12.45          .



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             1072.00       761.00       552.00       363.00       175.00
 Standard Error        .          24.21        16.72        12.97          .



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                 .            .         560.00       344.00       174.00
 Standard Error        .            .            .          13.36          .



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                 .            .            .            .         174.00
 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                 .            .        3819.00      3151.00      2583.00      2217.00      1745.00      1401.00      1129.00
 Standard Error        .            .            .         118.20        87.23        76.42        72.39        52.50        40.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       693.00       514.00       350.00       177.00
 Standard Error      32.60        26.38        20.62        16.79          .



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                 .            .            .        3603.00      2855.00      2311.00      1847.00      1493.00      1200.00
 Standard Error        .            .            .            .         118.82        91.88        72.27        54.72        44.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              944.00       715.00       511.00       329.00       160.00
 Standard Error      36.41        29.73        23.37        17.31          .



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                 .            .            .        3164.00      2491.00      2064.00      1705.00      1390.00      1126.00
 Standard Error        .            .            .            .         101.69        71.39        59.49        49.03        42.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              860.00       669.00       448.00       294.00       168.00
 Standard Error      34.19        28.20        22.44        13.97          .



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                 .            .            .            .        2639.00      2149.00      1751.00      1379.00      1113.00
 Standard Error        .            .            .            .            .          83.68        70.95        56.51        42.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              875.00       645.00       476.00       291.00       138.00
 Standard Error      36.47        28.52        22.23        17.56          .



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                 .            .            .            .            .        2098.00      1764.00      1415.00      1126.00
 Standard Error        .            .            .            .            .            .          63.69        57.22        46.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              875.00       650.00       445.00       270.00       154.00
 Standard Error      37.80        31.21        24.42        15.64          .



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                 .            .            .            .            .            .        1836.00      1481.00      1138.00
 Standard Error        .            .            .            .            .            .            .          64.14        50.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       658.00       461.00       268.00       132.00
 Standard Error      38.85        32.36        25.27        18.04          .



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                 .            .            .            .            .            .        1777.00      1442.00      1171.00
 Standard Error        .            .            .            .            .            .            .          52.94        45.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              918.00       672.00       463.00       271.00       139.00
 Standard Error      40.56        33.50        26.06        17.48          .



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                 .            .            .            .            .            .            .            .        1154.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              889.00       650.00       448.00       259.00       126.00
 Standard Error      42.45        33.22        26.11        18.01          .



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              929.00       622.00       440.00       276.00       117.00
 Standard Error        .          37.49        23.71        18.32          .



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                 .            .         456.00       251.00       125.00
 Standard Error        .            .            .          19.40          .



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                 .            .            .         294.00       173.00
 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                 .            .            .        3165.00      2374.00      1981.00      1751.00      1441.00      1198.00
 Standard Error        .            .            .            .         371.76       209.02       178.85       197.49       165.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              860.00       644.00       463.00       235.00       131.00
 Standard Error     147.64        97.43        92.86        64.68          .



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                 .            .            .        3038.00      2657.00      1951.00      1422.00      1214.00       941.00
 Standard Error        .            .            .            .         348.98       339.90       222.41       130.24       115.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              811.00       552.00       449.00       294.00       166.00
 Standard Error      95.48        83.98        50.74        50.47          .



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                 .            .        3236.00      2856.00      2542.00      2035.00      1627.00      1312.00      1043.00
 Standard Error        .            .            .         175.86       230.30       252.57       188.80       157.27       126.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              804.00       631.00       490.00       274.00       178.00
 Standard Error     102.15        77.28        67.48        48.19          .



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                 .            .            .            .        2219.00      1849.00      1429.00      1120.00       838.00
 Standard Error        .            .            .            .            .         191.98       169.66       129.29        96.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              664.00       498.00       398.00       213.00       153.00
 Standard Error      67.86        46.52        44.53        32.81          .



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                 .            .            .            .            .        2090.00      1742.00      1442.00      1089.00
 Standard Error        .            .            .            .            .            .         133.31       131.91       115.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              817.00       578.00       392.00       258.00       147.00
 Standard Error      90.77        69.42        44.50        29.02          .



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                 .            .            .            .            .            .        1901.00      1447.00      1050.00
 Standard Error        .            .            .            .            .            .            .         151.86       117.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              762.00       551.00       385.00       246.00       131.00
 Standard Error      80.32        54.32        39.81        25.89          .



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                 .            .            .            .            .            .        1727.00      1302.00      1049.00
 Standard Error        .            .            .            .            .            .            .         110.11        71.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              846.00       603.00       461.00       268.00       158.00
 Standard Error      64.48        50.13        39.85        29.24          .



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                 .            .            .            .            .            .            .            .        1187.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              887.00       680.00       453.00       300.00       137.00
 Standard Error      68.39        54.55        42.56        28.73          .



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                 .            .            .            .            .            .            .            .        1048.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              819.00       600.00       420.00       251.00       133.00
 Standard Error      55.02        46.16        35.62        25.10          .



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                 .         499.00       309.00       182.00        82.00
 Standard Error        .            .          31.33        19.47          .



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                 .            .            .         201.00       103.00
 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                 .        3552.00      2940.00      2459.00      2047.00      1664.00      1375.00      1167.00       902.00
 Standard Error        .            .         175.69       150.34       126.12       105.05        74.66        69.79        59.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              738.00       542.00       377.00       239.00       141.00
 Standard Error      46.92        42.52        31.66        20.58          .



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                 .        3369.00      2772.00      2211.00      1829.00      1500.00      1222.00       965.00       784.00
 Standard Error        .            .         164.63       134.03       101.29        84.43        72.13        56.65        43.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              611.00       457.00       343.00       216.00       119.00
 Standard Error      37.45        28.26        22.40        17.48          .



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                 .            .        2852.00      2255.00      1823.00      1507.00      1232.00       989.00       784.00
 Standard Error        .            .            .         142.29       100.96        78.21        66.26        55.32        42.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              625.00       476.00       350.00       203.00       108.00
 Standard Error      33.79        27.29        23.92        18.11          .



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                 .            .            .        2496.00      1987.00      1617.00      1344.00      1103.00       835.00
 Standard Error        .            .            .            .         113.84        81.15        62.86        60.42        51.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              639.00       483.00       353.00       217.00       112.00
 Standard Error      36.86        27.61        22.46        17.08          .



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                 .            .            .        2181.00      1793.00      1421.00      1092.00       883.00       725.00
 Standard Error        .            .            .            .          99.26        89.29        66.37        43.57        36.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              559.00       410.00       291.00       182.00        90.00
 Standard Error      33.40        26.13        19.36        14.52          .



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                 .            .            .        1952.00      1602.00      1290.00      1026.00       824.00       664.00
 Standard Error        .            .            .            .          84.57        71.79        55.69        41.45        33.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              518.00       397.00       282.00       193.00       104.00
 Standard Error      27.22        22.10        17.08        12.55          .



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                 .            .            .            .            .        1513.00      1157.00       912.00       711.00
 Standard Error        .            .            .            .            .            .          74.26        53.01        38.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              566.00       427.00       275.00       175.00        75.00
 Standard Error      29.89        28.15        21.09        14.56          .



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                 .            .            .            .            .        1287.00      1071.00       853.00       664.00
 Standard Error        .            .            .            .            .            .          51.35        46.18        33.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              546.00       391.00       288.00       187.00       101.00
 Standard Error      27.29        23.50        16.58        12.90          .



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                 .            .            .            .            .            .        1013.00       784.00       606.00
 Standard Error        .            .            .            .            .            .            .          45.62        33.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              468.00       363.00       233.00       171.00        74.00
 Standard Error      24.18        21.44        15.75        10.95          .



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                 .            .            .            .            .            .            .            .         662.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              477.00       369.00       237.00       175.00        74.00
 Standard Error      29.70        22.13        15.66        11.01          .



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                 .            .         238.00       162.00        72.00
 Standard Error        .            .            .          12.78          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam                61027   14290    46737      76.58
  YEARPLAC     1991.00                             7243    2382     4861      67.11
  YEARPLAC     1992.00                             7166    2265     4901      68.39
  YEARPLAC     1993.00                             6705    2058     4647      69.31
  YEARPLAC     1994.00                             6229    1792     4437      71.23
  YEARPLAC     1995.00                             5720    1561     4159      72.71
  YEARPLAC     1996.00                             5405    1264     4141      76.61
  YEARPLAC     1997.00                             5052    1029     4023      79.63
  YEARPLAC     1998.00                             4824     845     3979      82.48
  YEARPLAC     1999.00                             4512     604     3908      86.61
  YEARPLAC     2000.00                             4230     360     3870      91.49
  YEARPLAC     2001.00                             3941     130     3811      96.70

MAINTRT     Two surface amalgam, not MO or DO     14569    4498    10071      69.13
  YEARPLAC     1991.00                             1661     732      929      55.93
  YEARPLAC     1992.00                             1742     682     1060      60.85
  YEARPLAC     1993.00                             1658     666      992      59.83
  YEARPLAC     1994.00                             1484     541      943      63.54
  YEARPLAC     1995.00                             1281     439      842      65.73
  YEARPLAC     1996.00                             1291     422      869      67.31
  YEARPLAC     1997.00                             1237     333      904      73.08
  YEARPLAC     1998.00                             1143     294      849      74.28
  YEARPLAC     1999.00                             1093     198      895      81.88
  YEARPLAC     2000.00                             1007     146      861      85.50
  YEARPLAC     2001.00                              972      45      927      95.37

MAINTRT     MO or DO amalgam                      92741   29054    63687      68.67
  YEARPLAC     1991.00                             9333    4068     5265      56.41
  YEARPLAC     1992.00                             9503    4033     5470      57.56
  YEARPLAC     1993.00                             9514    3938     5576      58.61
  YEARPLAC     1994.00                             9178    3534     5644      61.49
  YEARPLAC     1995.00                             8709    3130     5579      64.06
  YEARPLAC     1996.00                             8493    2804     5689      66.98
  YEARPLAC     1997.00                             8081    2402     5679      70.28
  YEARPLAC     1998.00                             7874    2100     5774      73.33
  YEARPLAC     1999.00                             7537    1597     5940      78.81
  YEARPLAC     2000.00                             7438    1067     6371      85.65
  YEARPLAC     2001.00                             7081     381     6700      94.62

MAINTRT     MOD amalgam                           34192   11991    22201      64.93
  YEARPLAC     1991.00                             3588    1737     1851      51.59
  YEARPLAC     1992.00                             3644    1619     2025      55.57
  YEARPLAC     1993.00                             3617    1642     1975      54.60
  YEARPLAC     1994.00                             3295    1420     1875      56.90
  YEARPLAC     1995.00                             3203    1317     1886      58.88
  YEARPLAC     1996.00                             3048    1137     1911      62.70
  YEARPLAC     1997.00                             3088    1049     2039      66.03
  YEARPLAC     1998.00                             2896     849     2047      70.68
  YEARPLAC     1999.00                             2773     653     2120      76.45
  YEARPLAC     2000.00                             2581     415     2166      83.92
  YEARPLAC     2001.00                             2459     153     2306      93.78

MAINTRT     Composite resin                        8750    2552     6198      70.83
  YEARPLAC     1991.00                              268     123      145      54.10
  YEARPLAC     1992.00                              334     154      180      53.89
  YEARPLAC     1993.00                              360     174      186      51.67
  YEARPLAC     1994.00                              500     227      273      54.60
  YEARPLAC     1995.00                              646     262      384      59.44
  YEARPLAC     1996.00                              782     283      499      63.81
  YEARPLAC     1997.00                              964     341      623      64.63
  YEARPLAC     1998.00                             1082     309      773      71.44
  YEARPLAC     1999.00                             1215     310      905      74.49
  YEARPLAC     2000.00                             1262     257     1005      79.64
  YEARPLAC     2001.00                             1337     112     1225      91.62



MAINTRT     Glass ionomer                         19071    7864    11207      58.76
  YEARPLAC     1991.00                             1174     637      537      45.74
  YEARPLAC     1992.00                             1465     808      657      44.85
  YEARPLAC     1993.00                             1638     848      790      48.23
  YEARPLAC     1994.00                             1771     873      898      50.71
  YEARPLAC     1995.00                             1731     859      872      50.38
  YEARPLAC     1996.00                             1847     908      939      50.84
  YEARPLAC     1997.00                             1747     737     1010      57.81
  YEARPLAC     1998.00                             1888     774     1114      59.00
  YEARPLAC     1999.00                             1924     693     1231      63.98
  YEARPLAC     2000.00                             1941     507     1434      73.88
  YEARPLAC     2001.00                             1945     220     1725      88.69

Overall                                          230350   70249   160101      69.50


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

               Statistic        df       Significance

 Log Rank          17.42        10          .0656


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

               Statistic        df       Significance

 Log Rank          10.87        10          .3674


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

               Statistic        df       Significance

 Log Rank           7.56        10          .6714


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

               Statistic        df       Significance

 Log Rank           6.75        10          .7484


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

               Statistic        df       Significance

 Log Rank          12.75        10          .2383


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

               Statistic        df       Significance

 Log Rank          48.69        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        .04
             ( .8322)

  1993.00        .15      .00
             ( .6942) ( .9948)

  1994.00        .19      .51      .62
             ( .6658) ( .4751) ( .4320)

  1995.00        .62      .74      .51     1.01
             ( .4309) ( .3883) ( .4748) ( .3153)

  1996.00       1.81      .81     1.18     1.16     3.77
             ( .1784) ( .3683) ( .2782) ( .2817) ( .0523)

  1997.00       4.26     1.97     3.05     2.63     5.69      .57
             ( .0391) ( .1603) ( .0806) ( .1049) ( .0170) ( .4514)

  1998.00       3.76     1.28     2.73     1.78     6.47      .47      .01
             ( .0524) ( .2584) ( .0982) ( .1822) ( .0110) ( .4948) ( .9140)

  1999.00       4.19     1.08     3.18     2.08     6.97      .40      .04      .81
             ( .0407) ( .2987) ( .0744) ( .1497) ( .0083) ( .5249) ( .8340) ( .3690)

  2000.00       3.64      .61     3.03     3.93     7.85     1.82      .42     4.42      .21
             ( .0565) ( .4364) ( .0815) ( .0475) ( .0051) ( .1776) ( .5164) ( .0355) ( .6463)

  2001.00        .69     1.14      .10      .04     1.05      .00      .22      .92     1.43      .00
             ( .4060) ( .2867) ( .7549) ( .8359) ( .3065) ( .9647) ( .6372) ( .3381) ( .2315) ( .9928)


 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       3.36
             ( .0668)

  1993.00        .14     1.84
             ( .7088) ( .1748)

  1994.00       2.03      .06     1.94
             ( .1541) ( .8041) ( .1638)

  1995.00        .35      .37     1.17      .00
             ( .5524) ( .5448) ( .2803) ( .9944)

  1996.00        .01      .64      .51      .02      .36
             ( .9246) ( .4220) ( .4743) ( .8938) ( .5487)

  1997.00       2.10      .37     4.12     2.01     1.08     3.15
             ( .1471) ( .5452) ( .0423) ( .1560) ( .2986) ( .0760)

  1998.00        .06      .91      .10      .00      .00      .08     2.39
             ( .8012) ( .3389) ( .7477) ( .9450) ( .9454) ( .7708) ( .1223)

  1999.00       1.44      .68     3.18     2.50     2.97     2.43      .00     2.86
             ( .2297) ( .4090) ( .0748) ( .1141) ( .0846) ( .1188) ( .9795) ( .0909)

  2000.00        .23     1.35      .03      .24      .00      .14     2.04      .11     1.31
             ( .6324) ( .2446) ( .8546) ( .6207) ( .9544) ( .7060) ( .1529) ( .7450) ( .2526)




  2001.00        .12      .08      .09      .20      .57      .05      .00      .00      .15      .26
             ( .7332) ( .7810) ( .7643) ( .6580) ( .4520) ( .8161) ( .9738) ( .9454) ( .6971) ( .6081)


 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        .61
             ( .4344)

  1993.00       1.75      .06
             ( .1855) ( .8005)

  1994.00        .87      .00      .21
             ( .3510) ( .9695) ( .6434)

  1995.00        .15      .31      .75      .50
             ( .6991) ( .5774) ( .3864) ( .4774)

  1996.00        .66      .21      .56     1.14      .00
             ( .4179) ( .6438) ( .4526) ( .2860) ( .9746)

  1997.00       1.00      .28      .83     1.54      .01      .39
             ( .3178) ( .5950) ( .3625) ( .2146) ( .9085) ( .5304)

  1998.00       8.50     1.61      .04      .09     2.34      .50      .38
             ( .0035) ( .2043) ( .8369) ( .7675) ( .1261) ( .4805) ( .5368)

  1999.00       9.62     1.59      .00      .09     1.10      .05      .01      .17
             ( .0019) ( .2074) ( .9864) ( .7637) ( .2948) ( .8282) ( .9421) ( .6797)

  2000.00      12.59     3.19      .28      .50      .19      .22      .00      .57      .15
             ( .0004) ( .0741) ( .5950) ( .4781) ( .6593) ( .6398) ( .9739) ( .4517) ( .6942)

  2001.00      18.31     8.92     2.01      .04      .88      .05      .28      .59      .02      .46
             ( .0000) ( .0028) ( .1558) ( .8407) ( .3495) ( .8218) ( .5972) ( .4416) ( .8779) ( .4994)


 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       2.80
             ( .0941)

  1993.00        .29     4.67
             ( .5877) ( .0308)

  1994.00        .08     2.64      .17
             ( .7749) ( .1044) ( .6802)

  1995.00        .60     3.16      .22      .03
             ( .4380) ( .0754) ( .6377) ( .8664)

  1996.00        .02      .75     1.12      .30      .59
             ( .8910) ( .3851) ( .2895) ( .5837) ( .4411)

  1997.00        .01     1.20      .45      .18      .04      .31
             ( .9120) ( .2740) ( .5017) ( .6717) ( .8455) ( .5779)

  1998.00        .06      .22      .65      .80      .32      .04      .01
             ( .8037) ( .6380) ( .4215) ( .3717) ( .5719) ( .8509) ( .9221)

  1999.00        .04      .60      .43      .52      .40      .16      .01      .31
             ( .8505) ( .4385) ( .5120) ( .4723) ( .5285) ( .6854) ( .9433) ( .5781)




  2000.00        .36      .34      .68      .72     1.08      .69      .34      .99     1.61
             ( .5458) ( .5617) ( .4079) ( .3963) ( .2989) ( .4056) ( .5576) ( .3208) ( .2040)

  2001.00       3.40      .55      .07      .16      .47      .67      .23     1.39      .94     1.72
             ( .0652) ( .4566) ( .7919) ( .6893) ( .4949) ( .4144) ( .6294) ( .2386) ( .3315) ( .1903)


 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        .10
             ( .7529)

  1993.00        .10      .00
             ( .7516) ( .9747)

  1994.00        .35      .22      .23
             ( .5559) ( .6404) ( .6299)

  1995.00        .10      .04      .05     2.00
             ( .7560) ( .8457) ( .8161) ( .1576)

  1996.00        .23      .87      .37     3.74      .48
             ( .6326) ( .3514) ( .5413) ( .0531) ( .4876)

  1997.00        .03      .74      .06     1.70      .00      .14
             ( .8680) ( .3896) ( .7989) ( .1921) ( .9755) ( .7058)

  1998.00        .05     2.98      .82     5.73      .42      .77     1.43
             ( .8246) ( .0844) ( .3654) ( .0167) ( .5148) ( .3810) ( .2312)

  1999.00        .16      .40      .01     2.42      .00      .04      .03     1.18
             ( .6898) ( .5261) ( .9178) ( .1198) ( .9572) ( .8449) ( .8705) ( .2766)

  2000.00       1.24      .33     1.28      .11     1.03      .24     2.67     6.06     2.01
             ( .2658) ( .5684) ( .2576) ( .7448) ( .3103) ( .6270) ( .1020) ( .0139) ( .1562)

  2001.00        .76     1.85     1.62      .36      .93      .65     2.65     3.67     1.32     1.62
             ( .3840) ( .1737) ( .2033) ( .5479) ( .3338) ( .4216) ( .1034) ( .0555) ( .2500) ( .2028)


 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       1.93
             ( .1650)

  1993.00       1.10      .07
             ( .2934) ( .7923)

  1994.00        .05     1.77     1.04
             ( .8181) ( .1836) ( .3087)

  1995.00       5.02      .30      .74     4.09
             ( .0250) ( .5861) ( .3904) ( .0431)

  1996.00      12.76     3.67     4.53    11.12     1.73
             ( .0004) ( .0553) ( .0333) ( .0009) ( .1888)

  1997.00       4.55      .15      .28     2.75      .11     2.65
             ( .0329) ( .6981) ( .5964) ( .0972) ( .7352) ( .1035)

  1998.00      14.70     4.08     4.31    11.38      .87      .04     1.48
             ( .0001) ( .0435) ( .0379) ( .0007) ( .3517) ( .8427) ( .2245)




  1999.00      22.14     8.22    10.18    18.90     2.82      .63     3.94     1.36
             ( .0000) ( .0041) ( .0014) ( .0000) ( .0933) ( .4259) ( .0470) ( .2433)

  2000.00      17.09     7.07     8.14    11.59     2.37      .52     2.12      .50      .63
             ( .0000) ( .0078) ( .0043) ( .0007) ( .1235) ( .4693) ( .1454) ( .4783) ( .4284)

  2001.00      15.74     8.83     9.90    10.68     2.49     3.08      .89     2.47      .00      .01
             ( .0001) ( .0030) ( .0017) ( .0011) ( .1144) ( .0794) ( .3459) ( .1161) ( .9924) ( .9045)





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 27-JUN-2003 15:01:05
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 93002
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 0:00:06.07




 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                 .            .            .            .        3276.00      2620.00      2193.00      1833.00      1388.00
 Standard Error        .            .            .            .            .         142.49        99.31        95.87        81.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1106.00       794.00       583.00       392.00       189.00
 Standard Error      61.53        49.63        34.09        27.27          .



 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                 .            .            .            .        3050.00      2489.00      2110.00      1804.00      1444.00
 Standard Error        .            .            .            .            .         117.01        83.39        77.26        80.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1078.00       815.00       588.00       413.00       236.00
 Standard Error      64.34        45.36        32.95        23.50          .



 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                 .            .            .            .        2938.00      2309.00      1934.00      1589.00      1310.00
 Standard Error        .            .            .            .            .         143.45        98.93        83.11        66.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1046.00       791.00       522.00       362.00       189.00
 Standard Error      59.19        54.64        38.72        24.90          .



 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                 .            .            .            .        2889.00      2572.00      2203.00      1786.00      1387.00
 Standard Error        .            .            .            .            .          97.66       106.70       107.92        93.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1020.00       797.00       609.00       397.00       188.00
 Standard Error      67.31        44.11        36.41        31.51          .



 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                 .            .            .            .            .            .        2178.00      1693.00      1326.00
 Standard Error        .            .            .            .            .            .            .         122.40        86.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1045.00       800.00       584.00       370.00       182.00
 Standard Error      65.42        50.71        42.31        32.27          .



 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                 .            .            .            .            .            .            .        1933.00      1605.00
 Standard Error        .            .            .            .            .            .            .            .         100.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1162.00       807.00       568.00       381.00       173.00
 Standard Error      96.75        64.10        40.62        31.24          .



 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                 .            .            .            .            .            .            .        1672.00      1271.00
 Standard Error        .            .            .            .            .            .            .            .          86.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1029.00       826.00       530.00       273.00       122.00
 Standard Error      56.66        54.74        54.10        33.21          .



 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             1269.00       890.00       572.00       357.00       160.00
 Standard Error        .          80.97        53.92        34.00          .



 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                 .         952.00       651.00       417.00       189.00
 Standard Error        .            .          56.27        40.19          .



 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                 .            .         609.00       311.00       152.00
 Standard Error        .            .            .          39.87          .



 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                 .            .            .            .         281.00
 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                 .            .            .            .            .        3328.00      2583.00      2023.00      1541.00
 Standard Error        .            .            .            .            .            .         166.61       125.98        92.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1219.00       929.00       668.00       419.00       211.00
 Standard Error      66.60        54.34        43.84        32.57          .



 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                 .            .            .            .        3280.00      2826.00      2274.00      1845.00      1432.00
 Standard Error        .            .            .            .            .         139.19       130.01       107.33        82.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1157.00       865.00       651.00       441.00       219.00
 Standard Error      63.86        52.02        39.10        32.27          .



 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                 .            .            .            .            .        2709.00      2118.00      1603.00      1297.00
 Standard Error        .            .            .            .            .            .         138.02        98.16        69.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              991.00       753.00       534.00       365.00       164.00
 Standard Error      57.61        43.41        33.54        25.86          .



 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                 .            .            .            .            .        2514.00      2057.00      1656.00      1313.00
 Standard Error        .            .            .            .            .            .         107.43        90.72        77.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              975.00       741.00       527.00       322.00       171.00
 Standard Error      61.22        43.29        35.99        24.85          .



 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                 .            .            .            .            .            .        2030.00      1723.00      1298.00
 Standard Error        .            .            .            .            .            .            .          88.54        84.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              996.00       789.00       592.00       372.00       189.00
 Standard Error      54.84        40.12        36.30        29.07          .



 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                 .            .            .            .            .            .            .        1756.00      1449.00
 Standard Error        .            .            .            .            .            .            .            .          75.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1127.00       886.00       651.00       392.00       186.00
 Standard Error      63.72        48.04        43.65        33.95          .



 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                 .            .            .            .            .            .            .            .        1461.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1098.00       759.00       499.00       294.00       145.00
 Standard Error      74.93        57.97        40.31        25.00          .



 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                 .            .            .            .            .            .            .            .        1194.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       641.00       420.00       250.00       131.00
 Standard Error      63.27        44.60        35.62        21.81          .



 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                 .         727.00       476.00       290.00       153.00
 Standard Error        .            .          39.33        23.97          .



 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                 .            .         583.00       308.00       131.00
 Standard Error        .            .            .          32.41          .



 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                 .            .            .            .         175.00
 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                 .            .            .        3292.00      2622.00      2272.00      1898.00      1531.00      1277.00
 Standard Error        .            .            .            .         135.53        93.36        93.07        73.51        62.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              978.00       727.00       550.00       353.00       196.00
 Standard Error      57.93        41.14        31.44        24.70          .



 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                 .            .            .        3143.00      2588.00      2121.00      1732.00      1371.00      1109.00
 Standard Error        .            .            .            .         124.93       100.75        87.78        69.24        55.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              846.00       636.00       493.00       308.00       182.00
 Standard Error      45.81        32.31        26.05        20.39          .



 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                 .            .            .        3253.00      2559.00      2071.00      1699.00      1339.00      1060.00
 Standard Error        .            .            .            .         134.89       116.38        95.97        80.76        53.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              889.00       637.00       474.00       310.00       171.00
 Standard Error      46.97        42.74        29.83        22.58          .



 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                 .            .            .            .            .        2319.00      1839.00      1471.00      1106.00
 Standard Error        .            .            .            .            .            .         106.16        88.17        78.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              790.00       561.00       403.00       260.00       152.00
 Standard Error      58.74        37.17        25.89        18.37          .



 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                 .            .            .            .            .        2162.00      1657.00      1323.00      1070.00
 Standard Error        .            .            .            .            .            .         106.30        75.02        59.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              821.00       609.00       442.00       289.00       181.00
 Standard Error      51.46        39.21        28.70        19.66          .



 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                 .            .            .            .            .            .        1792.00      1454.00      1106.00
 Standard Error        .            .            .            .            .            .            .          92.29        74.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       630.00       469.00       331.00       168.00
 Standard Error      55.45        41.23        27.62        23.75          .



 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                 .            .            .            .            .            .            .        1505.00      1225.00
 Standard Error        .            .            .            .            .            .            .            .          77.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              883.00       644.00       494.00       322.00       127.00
 Standard Error      67.28        41.39        29.75        28.68          .



 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                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1038.00       748.00       498.00       315.00       159.00
 Standard Error        .          55.63        39.13        26.21          .



 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              800.00       589.00       455.00       277.00       139.00
 Standard Error        .          38.25        30.72        26.58          .



 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                 .         692.00       497.00       272.00       140.00
 Standard Error        .            .          38.13        28.05          .



 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                 .            .            .         231.00       149.00
 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                 .            .        3511.00      2927.00      2479.00      2058.00      1661.00      1296.00      1077.00
 Standard Error        .            .            .         158.63       128.47       120.38       106.27        79.91        53.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              875.00       670.00       519.00       359.00       189.00
 Standard Error      49.82        39.70        30.53        27.02          .



 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                 .            .        3174.00      2513.00      2247.00      1847.00      1533.00      1303.00      1071.00
 Standard Error        .            .            .         137.57       102.26       105.36        77.05        66.35        61.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              815.00       651.00       462.00       355.00       188.00
 Standard Error      50.57        38.68        28.97        21.76          .



 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                 .            .            .        2849.00      2239.00      1897.00      1526.00      1290.00      1095.00
 Standard Error        .            .            .            .         134.37        98.77        81.23        54.15        56.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              818.00       614.00       436.00       267.00       128.00
 Standard Error      55.64        40.28        32.33        23.96          .



 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                 .            .            .        2667.00      2088.00      1739.00      1366.00      1149.00       923.00
 Standard Error        .            .            .            .         135.20       104.21        82.65        59.96        52.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              746.00       566.00       405.00       259.00       125.00
 Standard Error      43.90        37.71        31.14        23.14          .



 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                 .            .            .            .        2301.00      1720.00      1394.00      1099.00       904.00
 Standard Error        .            .            .            .            .         131.74        85.30        62.82        48.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              708.00       546.00       390.00       238.00       138.00
 Standard Error      40.63        34.43        28.79        20.17          .



 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                 .            .            .            .            .        1953.00      1547.00      1173.00       908.00
 Standard Error        .            .            .            .            .            .         104.73        80.94        58.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              697.00       551.00       371.00       238.00       151.00
 Standard Error      41.12        34.18        29.16        16.85          .



 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                 .            .            .            .            .            .        1493.00      1189.00       958.00
 Standard Error        .            .            .            .            .            .            .          63.85        49.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              756.00       588.00       428.00       259.00       150.00
 Standard Error      40.04        31.77        28.69        20.09          .



 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                 .            .            .            .            .            .            .        1099.00       876.00
 Standard Error        .            .            .            .            .            .            .            .          45.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              698.00       539.00       383.00       253.00       121.00
 Standard Error      35.27        30.51        25.30        18.97          .



 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                 .            .            .            .            .            .            .            .         960.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              726.00       572.00       408.00       252.00       148.00
 Standard Error      40.54        30.43        27.27        18.77          .



 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                 .         572.00       382.00       237.00       137.00
 Standard Error        .            .          29.35        18.09          .



 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                 .            .            .         312.00       182.00
 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                 .        3536.00      2769.00      2166.00      1769.00      1412.00      1142.00       931.00       764.00
 Standard Error        .            .         233.29       163.02       122.19       100.34        73.07        55.12        47.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              589.00       472.00       368.00       258.00       168.00
 Standard Error      38.65        26.14        22.61        17.22          .



 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                 .            .        2871.00      2317.00      1884.00      1521.00      1231.00       938.00       735.00
 Standard Error        .            .            .         167.20       131.57       105.13        88.15        75.88        49.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              590.00       483.00       369.00       238.00       168.00
 Standard Error      33.69        27.15        26.35        18.33          .



 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                 .        3084.00      2548.00      2044.00      1681.00      1422.00      1146.00       944.00       819.00
 Standard Error        .            .         169.71       142.96       102.80        86.30        74.71        50.24        42.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              649.00       493.00       364.00       242.00       145.00
 Standard Error      44.47        35.17        27.40        19.63          .



 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                 .            .        2527.00      2083.00      1715.00      1430.00      1130.00       980.00       796.00
 Standard Error        .            .            .         132.39       103.78        91.39        68.77        49.31        48.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              630.00       469.00       360.00       232.00       154.00
 Standard Error      42.67        31.96        25.14        18.85          .



 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                 .            .        2472.00      1999.00      1693.00      1358.00      1057.00       852.00       710.00
 Standard Error        .            .            .         120.05        97.92        94.56        74.25        49.16        39.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              560.00       441.00       355.00       205.00       103.00
 Standard Error      33.61        24.44        24.40        21.72          .



 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                 .            .            .            .        2142.00      1629.00      1342.00      1062.00       829.00
 Standard Error        .            .            .            .            .         105.44        81.82        71.47        51.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              680.00       523.00       387.00       219.00       126.00
 Standard Error      38.46        33.86        29.90        21.74          .



 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                 .            .            .            .            .        1376.00      1134.00       923.00       708.00
 Standard Error        .            .            .            .            .            .          69.79        60.99        55.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              530.00       385.00       273.00       188.00       110.00
 Standard Error      42.61        31.09        21.32        14.77          .



 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                 .            .            .            .            .        1359.00      1134.00       891.00       719.00
 Standard Error        .            .            .            .            .            .          64.70        57.22        43.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              563.00       440.00       329.00       199.00       116.00
 Standard Error      34.96        26.57        23.52        18.28          .



 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                 .            .            .            .            .            .            .        1027.00       733.00
 Standard Error        .            .            .            .            .            .            .            .          57.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              571.00       409.00       313.00       195.00       123.00
 Standard Error      37.77        28.13        20.77        15.42          .



 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              616.00       452.00       319.00       194.00       116.00
 Standard Error        .          32.43        25.03        16.92          .



 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                 .            .         299.00       203.00       134.00
 Standard Error        .            .            .          17.66          .



 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                 .        2898.00      2295.00      1808.00      1519.00      1176.00       980.00       882.00       703.00
 Standard Error        .            .         253.36       172.65       132.67       116.46        72.44        57.44        59.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       460.00       338.00       212.00       153.00
 Standard Error      43.33        37.77        35.33        22.29          .



 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                 .        2676.00      2204.00      1893.00      1624.00      1289.00      1068.00       864.00       714.00
 Standard Error        .            .         161.60       122.36       128.38       108.26        81.74        65.70        53.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              573.00       436.00       348.00       220.00       153.00
 Standard Error      47.05        34.92        29.63        22.01          .



 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                 .        2483.00      1975.00      1685.00      1368.00      1135.00       934.00       749.00       630.00
 Standard Error        .            .         168.52       126.89       114.20        89.31        72.40        54.99        41.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              513.00       385.00       279.00       199.00       145.00
 Standard Error      40.84        35.88        24.66        15.77          .



 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                 .            .        2666.00      1954.00      1563.00      1310.00      1084.00       865.00       679.00
 Standard Error        .            .            .         222.32       127.07        93.31        83.79        74.15        55.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              541.00       394.00       261.00       182.00       103.00
 Standard Error      45.18        40.41        27.27        17.82          .



 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                 .            .        2484.00      2015.00      1654.00      1324.00      1084.00       880.00       720.00
 Standard Error        .            .            .         156.50       136.52       111.78        79.78        62.15        48.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              587.00       442.00       319.00       194.00       112.00
 Standard Error      42.79        37.93        30.78        21.00          .



 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                 .            .            .        2140.00      1673.00      1347.00      1137.00       974.00       791.00
 Standard Error        .            .            .            .         129.66        91.42        63.78        55.45        57.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              585.00       420.00       326.00       194.00       127.00
 Standard Error      52.28        33.07        25.78        19.25          .



 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                 .            .            .            .        1619.00      1312.00      1050.00       805.00       637.00
 Standard Error        .            .            .            .            .          94.56        81.38        63.33        44.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              504.00       379.00       263.00       187.00       105.00
 Standard Error      35.25        30.31        21.60        15.43          .



 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                 .            .            .            .            .        1324.00      1086.00       887.00       730.00
 Standard Error        .            .            .            .            .            .          63.92        53.06        46.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              546.00       391.00       249.00       191.00       111.00
 Standard Error      43.55        34.82        20.73        12.31          .



 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                 .            .            .            .            .            .            .         903.00       696.00
 Standard Error        .            .            .            .            .            .            .            .          45.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              573.00       443.00       363.00       203.00       103.00
 Standard Error      33.15        25.59        25.27        22.99          .



 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                 .            .            .            .            .            .            .            .         688.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              529.00       434.00       307.00       196.00       123.00
 Standard Error      34.42        28.50        26.07        17.39          .



 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                 .            .            .         195.00        98.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           16347       4897       11450         70.04
  YEARPLAC        1991.00          1919        792        1127         58.73
  YEARPLAC        1992.00          2016        848        1168         57.94
  YEARPLAC        1993.00          1627        639         988         60.73
  YEARPLAC        1994.00          1645        595        1050         63.83
  YEARPLAC        1995.00          1405        478         927         65.98
  YEARPLAC        1996.00          1475        441        1034         70.10
  YEARPLAC        1997.00          1365        399         966         70.77
  YEARPLAC        1998.00          1331        291        1040         78.14
  YEARPLAC        1999.00          1243        215        1028         82.70
  YEARPLAC        2000.00          1142        150         992         86.87
  YEARPLAC        2001.00          1179         49        1130         95.84

PATAGEG2       30 to 39           18650       5638       13012         69.77
  YEARPLAC        1991.00          1799        699        1100         61.15
  YEARPLAC        1992.00          1632        680         952         58.33
  YEARPLAC        1993.00          1819        726        1093         60.09
  YEARPLAC        1994.00          1801        721        1080         59.97
  YEARPLAC        1995.00          1730        649        1081         62.49
  YEARPLAC        1996.00          1709        542        1167         68.29
  YEARPLAC        1997.00          1797        517        1280         71.23
  YEARPLAC        1998.00          1562        440        1122         71.83
  YEARPLAC        1999.00          1600        339        1261         78.81
  YEARPLAC        2000.00          1739        243        1496         86.03
  YEARPLAC        2001.00          1462         82        1380         94.39

PATAGEG2       40 to 49           17626       6107       11519         65.35
  YEARPLAC        1991.00          1823        854         969         53.15
  YEARPLAC        1992.00          2058        980        1078         52.38
  YEARPLAC        1993.00          1573        745         828         52.64
  YEARPLAC        1994.00          1725        719        1006         58.32
  YEARPLAC        1995.00          1606        662         944         58.78
  YEARPLAC        1996.00          1478        556         922         62.38
  YEARPLAC        1997.00          1491        499         992         66.53
  YEARPLAC        1998.00          1565        415        1150         73.48
  YEARPLAC        1999.00          1335        338         997         74.68
  YEARPLAC        2000.00          1475        234        1241         84.14
  YEARPLAC        2001.00          1497        105        1392         92.99

PATAGEG2       50 to 59           17029       6196       10833         63.62
  YEARPLAC        1991.00          1339        679         660         49.29
  YEARPLAC        1992.00          1390        709         681         48.99
  YEARPLAC        1993.00          1485        730         755         50.84
  YEARPLAC        1994.00          1321        657         664         50.26
  YEARPLAC        1995.00          1417        642         775         54.69
  YEARPLAC        1996.00          1467        623         844         57.53
  YEARPLAC        1997.00          1717        646        1071         62.38
  YEARPLAC        1998.00          1724        610        1114         64.62
  YEARPLAC        1999.00          1777        485        1292         72.71
  YEARPLAC        2000.00          1710        322        1388         81.17
  YEARPLAC        2001.00          1682         93        1589         94.47

PATAGEG2       60 to 69           13164       5452        7712         58.58
  YEARPLAC        1991.00          1144        621         523         45.72
  YEARPLAC        1992.00          1104        577         527         47.74
  YEARPLAC        1993.00          1088        600         488         44.85
  YEARPLAC        1994.00          1116        610         506         45.34
  YEARPLAC        1995.00          1201        636         565         47.04
  YEARPLAC        1996.00          1252        562         690         55.11
  YEARPLAC        1997.00          1097        493         604         55.06
  YEARPLAC        1998.00          1260        513         747         59.29
  YEARPLAC        1999.00          1353        439         914         67.55
  YEARPLAC        2000.00          1313        291        1022         77.84
  YEARPLAC        2001.00          1236        110        1126         91.10



PATAGEG2       70 or older        10186       4003        6183         60.70
  YEARPLAC        1991.00           617        330         287         46.52
  YEARPLAC        1992.00           676        376         300         44.38
  YEARPLAC        1993.00           715        386         329         46.01
  YEARPLAC        1994.00           753        387         366         48.61
  YEARPLAC        1995.00           828        407         421         50.85
  YEARPLAC        1996.00           971        452         519         53.45
  YEARPLAC        1997.00          1011        461         550         54.40
  YEARPLAC        1998.00          1173        478         695         59.25
  YEARPLAC        1999.00          1137        379         758         66.67
  YEARPLAC        2000.00          1016        239         777         76.48
  YEARPLAC        2001.00          1289        108        1181         91.62

Overall                           93002      32293       60709         65.28


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

               Statistic        df       Significance

 Log Rank          16.09        10          .0970


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

               Statistic        df       Significance

 Log Rank          24.62        10          .0061


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

               Statistic        df       Significance

 Log Rank          16.06        10          .0980


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

               Statistic        df       Significance

 Log Rank           9.47        10          .4884


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

               Statistic        df       Significance

 Log Rank          10.54        10          .3945


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

               Statistic        df       Significance

 Log Rank           6.48        10          .7736







 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        .40
             ( .5274)

  1993.00       2.19     1.03
             ( .1385) ( .3098)

  1994.00        .23      .00      .81
             ( .6340) ( .9617) ( .3675)

  1995.00        .02      .02     1.43      .00
             ( .8804) ( .9004) ( .2311) ( .9565)

  1996.00        .62      .95     5.49      .65     1.24
             ( .4312) ( .3294) ( .0191) ( .4203) ( .2661)

  1997.00       1.02     1.40      .03      .87      .25     4.02
             ( .3134) ( .2366) ( .8609) ( .3512) ( .6149) ( .0449)

  1998.00       2.05     1.18     4.90     2.23     3.37      .36     5.55
             ( .1519) ( .2774) ( .0268) ( .1354) ( .0665) ( .5486) ( .0184)

  1999.00       2.11     1.94     3.23     3.20     2.96     1.68     3.97      .47
             ( .1467) ( .1633) ( .0721) ( .0737) ( .0855) ( .1952) ( .0464) ( .4932)

  2000.00        .02      .05      .66      .00      .29      .29     1.18      .17      .42
             ( .8990) ( .8155) ( .4158) ( .9735) ( .5906) ( .5896) ( .2772) ( .6827) ( .5164)

  2001.00       1.14      .00     2.14     1.23     3.70     2.47    10.18     3.65      .27     5.98
             ( .2863) ( .9523) ( .1437) ( .2677) ( .0545) ( .1163) ( .0014) ( .0559) ( .6029) ( .0145)


 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       3.96
             ( .0467)

  1993.00       8.04     1.10
             ( .0046) ( .2948)

  1994.00      11.73     4.28      .73
             ( .0006) ( .0386) ( .3934)

  1995.00       7.19     1.84      .03      .30
             ( .0073) ( .1745) ( .8690) ( .5818)

  1996.00       1.84      .04     1.65     2.52     1.82
             ( .1744) ( .8358) ( .1989) ( .1124) ( .1769)

  1997.00       1.84      .15     2.37     1.97      .87      .00
             ( .1748) ( .7013) ( .1237) ( .1610) ( .3513) ( .9668)

  1998.00      11.50     7.17      .95      .82     1.29     6.62     3.22
             ( .0007) ( .0074) ( .3304) ( .3646) ( .2570) ( .0101) ( .0729)

  1999.00       5.47     2.52      .12      .38      .00     2.66      .06     4.21
             ( .0194) ( .1126) ( .7331) ( .5354) ( .9725) ( .1029) ( .8138) ( .0402)

  2000.00       2.14     2.43      .58     1.01      .05     1.06     1.31     7.56     2.70
             ( .1434) ( .1193) ( .4465) ( .3139) ( .8319) ( .3036) ( .2524) ( .0060) ( .1003)

  2001.00       1.91     3.78      .17      .42      .00      .48     2.03     4.13     1.95     1.47
             ( .1668) ( .0519) ( .6824) ( .5153) ( .9589) ( .4897) ( .1544) ( .0422) ( .1623) ( .2261)



 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       2.00
             ( .1569)

  1993.00       1.38      .01
             ( .2406) ( .9138)

  1994.00        .10     1.85     2.02
             ( .7544) ( .1733) ( .1557)

  1995.00       1.10      .00      .04      .33
             ( .2948) ( .9587) ( .8373) ( .5683)

  1996.00        .78      .26      .38      .07      .41
             ( .3770) ( .6127) ( .5359) ( .7915) ( .5232)

  1997.00        .49      .55      .78      .21     1.57      .08
             ( .4847) ( .4580) ( .3765) ( .6494) ( .2101) ( .7778)

  1998.00        .38     6.32     7.29     5.48     8.82     4.23     1.87
             ( .5378) ( .0120) ( .0070) ( .0193) ( .0030) ( .0397) ( .1717)

  1999.00       5.39      .48      .40      .00      .00      .23      .91     5.40
             ( .0203) ( .4866) ( .5267) ( .9498) ( .9910) ( .6308) ( .3394) ( .0201)

  2000.00        .96      .12      .20     4.92     1.56      .70      .22      .15     2.56
             ( .3273) ( .7263) ( .6522) ( .0265) ( .2117) ( .4017) ( .6418) ( .6974) ( .1093)

  2001.00      10.10     3.75     2.46      .03      .96     2.48      .92     2.10      .08      .09
             ( .0015) ( .0528) ( .1167) ( .8679) ( .3261) ( .1153) ( .3367) ( .1475) ( .7811) ( .7581)


 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       2.12
             ( .1455)

  1993.00        .36      .43
             ( .5506) ( .5096)

  1994.00       3.35      .12      .81
             ( .0672) ( .7284) ( .3671)

  1995.00       3.15      .16      .20      .26
             ( .0761) ( .6878) ( .6515) ( .6121)

  1996.00       2.46      .20      .18      .92      .63
             ( .1171) ( .6525) ( .6695) ( .3364) ( .4271)

  1997.00       1.43      .05      .00     1.64     2.03      .14
             ( .2313) ( .8162) ( .9810) ( .1999) ( .1538) ( .7124)

  1998.00       5.45     3.89     2.58      .03      .13      .39      .51
             ( .0196) ( .0486) ( .1079) ( .8548) ( .7147) ( .5348) ( .4741)

  1999.00       4.15     2.04     1.55      .14      .61      .36      .02     1.06
             ( .0415) ( .1536) ( .2138) ( .7127) ( .4337) ( .5461) ( .8762) ( .3027)

  2000.00       4.81     2.30      .30      .07      .59      .88      .07      .95      .04
             ( .0283) ( .1296) ( .5861) ( .7881) ( .4429) ( .3473) ( .7906) ( .3308) ( .8374)

  2001.00       1.80      .79     1.81     3.28     4.48     3.48     2.03     4.07     2.73     6.28
             ( .1796) ( .3728) ( .1784) ( .0701) ( .0343) ( .0620) ( .1545) ( .0437) ( .0986) ( .0122)



 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        .12
             ( .7314)

  1993.00        .29      .78
             ( .5886) ( .3761)

  1994.00        .55     1.35      .10
             ( .4583) ( .2460) ( .7473)

  1995.00       1.00     2.23      .60      .41
             ( .3164) ( .1352) ( .4389) ( .5225)

  1996.00       2.52      .97     3.42     3.38     6.94
             ( .1128) ( .3241) ( .0643) ( .0662) ( .0084)

  1997.00        .10      .72      .03      .04      .12     2.70
             ( .7539) ( .3970) ( .8566) ( .8444) ( .7287) ( .1006)

  1998.00        .49     1.97      .66      .46      .01     4.37      .00
             ( .4823) ( .1603) ( .4154) ( .4954) ( .9181) ( .0365) ( .9918)

  1999.00        .08      .02      .01      .00     2.16     1.17     1.15      .77
             ( .7835) ( .8855) ( .9066) ( .9978) ( .1417) ( .2801) ( .2834) ( .3814)

  2000.00        .01      .01      .30      .03     1.06      .87     2.49      .96     1.14
             ( .9108) ( .9027) ( .5820) ( .8601) ( .3035) ( .3508) ( .1148) ( .3265) ( .2859)

  2001.00       4.97     2.39     2.89     1.60      .37     1.36      .88      .00      .03      .02
             ( .0258) ( .1223) ( .0890) ( .2056) ( .5449) ( .2430) ( .3471) ( .9538) ( .8568) ( .8880)


 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        .01
             ( .9372)

  1993.00        .89      .86
             ( .3461) ( .3534)

  1994.00        .12      .20     2.30
             ( .7331) ( .6552) ( .1297)

  1995.00        .55      .34     3.56      .08
             ( .4570) ( .5624) ( .0592) ( .7785)

  1996.00       1.17      .55     5.44      .87      .22
             ( .2795) ( .4564) ( .0197) ( .3521) ( .6417)

  1997.00        .03      .16     1.41      .03      .20      .60
             ( .8568) ( .6902) ( .2347) ( .8680) ( .6584) ( .4389)

  1998.00        .05      .06     1.93      .00      .08      .48      .02
             ( .8222) ( .8026) ( .1650) ( .9625) ( .7801) ( .4896) ( .8912)

  1999.00        .46      .02     2.60      .40      .06      .28     1.02      .20
             ( .4972) ( .8812) ( .1066) ( .5249) ( .8058) ( .5965) ( .3136) ( .6564)

  2000.00        .07      .23      .78      .23      .28      .44      .74      .05      .29
             ( .7852) ( .6329) ( .3772) ( .6340) ( .5995) ( .5089) ( .3904) ( .8213) ( .5933)

  2001.00        .01      .00      .88     3.66      .68      .26     2.72     2.60      .03      .35
             ( .9387) ( .9617) ( .3492) ( .0559) ( .4105) ( .6069) ( .0988) ( .1067) ( .8612) ( .5536)






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 27-JUN-2003 15:01:12
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 202529
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 0:00:09.93




 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                 .            .            .            .            .        3395.00      2775.00      2246.00      1802.00
 Standard Error        .            .            .            .            .            .          71.18        57.28        46.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1415.00      1114.00       839.00       581.00       323.00
 Standard Error      35.40        27.04        21.87        17.34          .



 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                 .            .            .            .            .        3259.00      2680.00      2205.00      1783.00
 Standard Error        .            .            .            .            .            .          65.32        52.92        43.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1425.00      1125.00       831.00       572.00       309.00
 Standard Error      33.96        27.78        22.78        17.53          .



 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                 .            .            .            .            .            .        2779.00      2266.00      1839.00
 Standard Error        .            .            .            .            .            .            .          59.24        52.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1385.00      1069.00       790.00       542.00       297.00
 Standard Error      42.25        29.50        22.91        17.57          .



 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                 .            .            .            .            .            .        2832.00      2292.00      1803.00
 Standard Error        .            .            .            .            .            .            .          68.46        53.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1433.00      1092.00       779.00       520.00       272.00
 Standard Error      41.43        34.52        26.29        19.15          .



 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                 .            .            .            .            .            .            .        2299.00      1848.00
 Standard Error        .            .            .            .            .            .            .            .          54.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1475.00      1106.00       799.00       538.00       266.00
 Standard Error      45.52        38.04        27.74        21.17          .



 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                 .            .            .            .            .            .            .            .        1915.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1469.00      1134.00       863.00       576.00       272.00
 Standard Error      48.89        34.30        27.61        23.80          .



 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             1617.00      1213.00       904.00       605.00       311.00
 Standard Error        .          43.69        32.45        25.82          .



 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                 .        1163.00       864.00       570.00       288.00
 Standard Error        .            .          32.89        25.90          .



 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                 .            .         932.00       606.00       316.00
 Standard Error        .            .            .          28.11          .



 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                 .            .            .         661.00       279.00
 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                 .            .            .            .         330.00
 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                 .            .            .            .        3479.00      2924.00      2412.00      1951.00      1533.00
 Standard Error        .            .            .            .            .          79.19        69.57        60.13        49.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1180.00       883.00       637.00       406.00       221.00
 Standard Error      39.22        29.86        23.06        16.58          .



 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                 .            .            .            .            .        3196.00      2619.00      2068.00      1643.00
 Standard Error        .            .            .            .            .            .          83.64        69.16        53.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1259.00       917.00       644.00       427.00       211.00
 Standard Error      45.12        34.89        24.51        17.86          .



 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                 .            .            .            .            .        2839.00      2316.00      1876.00      1496.00
 Standard Error        .            .            .            .            .            .          65.66        54.19        45.85

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1132.00       834.00       608.00       391.00       189.00
 Standard Error      38.05        27.48        20.44        15.84          .



 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                 .            .            .            .            .            .        2544.00      1967.00      1564.00
 Standard Error        .            .            .            .            .            .            .          65.94        47.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1219.00       909.00       619.00       397.00       191.00
 Standard Error      38.80        32.20        24.29        16.64          .



 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                 .            .            .            .            .            .        2417.00      1954.00      1597.00
 Standard Error        .            .            .            .            .            .            .          56.72        47.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1239.00       920.00       650.00       413.00       204.00
 Standard Error      41.33        32.86        24.81        17.92          .



 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                 .            .            .            .            .            .            .        1991.00      1570.00
 Standard Error        .            .            .            .            .            .            .            .          52.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1213.00       915.00       644.00       412.00       188.00
 Standard Error      41.33        32.40        25.43        18.87          .



 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                 .            .            .            .            .            .            .            .        1587.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1224.00       936.00       666.00       413.00       203.00
 Standard Error      41.00        31.90        26.11        18.92          .



 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             1190.00       904.00       617.00       367.00       182.00
 Standard Error        .          33.93        28.00        18.43          .



 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                 .         902.00       624.00       412.00       194.00
 Standard Error        .            .          26.54        19.16          .



 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                 .            .            .         431.00       215.00
 Standard Error        .            .            .            .            .



 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                 .            .            .            .         175.00
 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                 .            .            .        3700.00      3079.00      2554.00      2069.00      1656.00      1349.00
 Standard Error        .            .            .            .         102.70        88.54        75.86        58.19        48.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1035.00       761.00       571.00       372.00       187.00
 Standard Error      42.44        30.34        22.66        18.35          .



 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                 .            .            .            .        3125.00      2611.00      2074.00      1646.00      1295.00
 Standard Error        .            .            .            .            .          88.27        78.41        60.79        46.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1019.00       775.00       571.00       375.00       182.00
 Standard Error      35.95        28.31        22.08        17.49          .



 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                 .            .            .            .        3214.00      2615.00      2076.00      1641.00      1268.00
 Standard Error        .            .            .            .            .         101.78        84.30        67.07        52.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              975.00       720.00       517.00       328.00       175.00
 Standard Error      40.34        30.72        23.43        16.77          .



 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                 .            .            .            .            .        2651.00      2045.00      1601.00      1279.00
 Standard Error        .            .            .            .            .            .          91.48        64.07        50.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              964.00       731.00       546.00       341.00       178.00
 Standard Error      40.64        28.52        23.30        18.22          .



 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                 .            .            .            .            .        2426.00      1954.00      1544.00      1204.00
 Standard Error        .            .            .            .            .            .          77.46        63.38        51.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              899.00       658.00       454.00       290.00       154.00
 Standard Error      41.00        30.40        22.32        15.17          .



 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                 .            .            .            .            .            .        2099.00      1636.00      1253.00
 Standard Error        .            .            .            .            .            .            .          73.35        55.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              971.00       680.00       496.00       327.00       170.00
 Standard Error      44.54        33.55        22.15        16.87          .



 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                 .            .            .            .            .            .            .        1662.00      1268.00
 Standard Error        .            .            .            .            .            .            .            .          59.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              961.00       703.00       489.00       298.00       154.00
 Standard Error      44.85        34.12        25.73        17.81          .



 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                 .            .            .            .            .            .            .            .        1362.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1023.00       777.00       516.00       343.00       156.00
 Standard Error      45.36        35.75        26.93        18.65          .



 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              983.00       711.00       506.00       301.00       144.00
 Standard Error        .          35.55        27.18        20.14          .



 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                 .            .         503.00       310.00       155.00
 Standard Error        .            .            .          19.23          .



 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                 .            .            .            .         169.00
 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                 .            .            .        3779.00      3005.00      2488.00      1963.00      1542.00      1240.00
 Standard Error        .            .            .            .         160.98       126.98       110.56        81.54        63.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              954.00       720.00       505.00       341.00       180.00
 Standard Error      52.30        40.70        30.43        21.81          .



 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                 .            .            .            .        2812.00      2308.00      1838.00      1421.00      1123.00
 Standard Error        .            .            .            .            .         113.57       100.08        77.28        55.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              885.00       685.00       498.00       319.00       172.00
 Standard Error      42.55        33.92        28.44        21.03          .



 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                 .            .            .            .        2802.00      2227.00      1890.00      1501.00      1246.00
 Standard Error        .            .            .            .            .          99.55        77.28        66.06        53.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              947.00       695.00       521.00       336.00       174.00
 Standard Error      49.84        35.27        26.31        21.17          .



 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                 .            .            .            .        2873.00      2338.00      1885.00      1458.00      1163.00
 Standard Error        .            .            .            .            .         111.41        99.30        77.97        61.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              858.00       648.00       439.00       281.00       144.00
 Standard Error      49.02        37.04        28.46        19.21          .



 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                 .            .            .            .            .        2451.00      1918.00      1521.00      1159.00
 Standard Error        .            .            .            .            .            .         107.13        84.42        63.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              926.00       704.00       476.00       278.00       155.00
 Standard Error      45.13        41.26        34.18        21.25          .



 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                 .            .            .            .            .            .        1940.00      1511.00      1135.00
 Standard Error        .            .            .            .            .            .            .          89.37        67.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              874.00       646.00       427.00       253.00       138.00
 Standard Error      49.36        40.44        31.16        19.23          .



 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                 .            .            .            .            .            .            .        1555.00      1170.00
 Standard Error        .            .            .            .            .            .            .            .          67.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              901.00       673.00       492.00       296.00       155.00
 Standard Error      46.94        35.58        28.74        21.26          .



 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                 .            .            .            .            .            .            .            .        1212.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              837.00       624.00       430.00       268.00       133.00
 Standard Error      56.38        36.00        27.86        19.41          .



 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              896.00       664.00       472.00       315.00       169.00
 Standard Error        .          37.44        27.15        20.00          .



 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                 .         711.00       431.00       270.00       154.00
 Standard Error        .            .          32.02        18.05          .



 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                 .            .            .            .         171.00
 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                 .            .            .        3238.00      2688.00      2156.00      1692.00      1399.00      1107.00
 Standard Error        .            .            .            .         176.51       157.56       117.78        84.37        75.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              847.00       644.00       471.00       312.00       172.00
 Standard Error      59.34        45.67        34.27        25.57          .



 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                 .            .            .        3217.00      2438.00      1998.00      1734.00      1340.00      1075.00
 Standard Error        .            .            .            .         202.84       114.74       103.25       100.36        75.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              826.00       625.00       468.00       304.00       159.00
 Standard Error      60.39        44.63        35.36        27.58          .



 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                 .            .            .        2882.00      2373.00      1927.00      1584.00      1323.00      1000.00
 Standard Error        .            .            .            .         156.78       125.22        99.88        89.60        79.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              772.00       600.00       403.00       278.00       138.00
 Standard Error      54.86        45.69        35.08        24.29          .



 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                 .            .            .            .        2444.00      1955.00      1531.00      1224.00       952.00
 Standard Error        .            .            .            .            .         138.89       108.08        82.78        69.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              708.00       539.00       380.00       228.00       126.00
 Standard Error      51.98        37.98        31.60        22.05          .



 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                 .            .            .            .            .        2210.00      1678.00      1331.00      1063.00
 Standard Error        .            .            .            .            .            .         132.97        92.08        73.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              815.00       602.00       427.00       286.00       158.00
 Standard Error      61.57        47.20        34.15        24.10          .



 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                 .            .            .            .            .            .        1707.00      1353.00      1093.00
 Standard Error        .            .            .            .            .            .            .          95.31        73.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              847.00       600.00       442.00       240.00        86.00
 Standard Error      66.16        50.69        40.60        32.99          .



 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                 .            .            .            .            .            .        1751.00      1405.00      1146.00
 Standard Error        .            .            .            .            .            .            .          93.98        90.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       631.00       462.00       312.00       187.00
 Standard Error      74.14        44.46        36.87        26.72          .



 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                 .            .            .            .            .            .            .        1253.00       995.00
 Standard Error        .            .            .            .            .            .            .            .          66.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              790.00       595.00       406.00       229.00       117.00
 Standard Error      54.18        48.80        41.16        26.91          .



 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                 .            .            .            .            .            .            .            .        1013.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              759.00       565.00       407.00       269.00       134.00
 Standard Error      61.17        44.41        33.07        26.40          .



 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                 .         539.00       369.00       209.00       122.00
 Standard Error        .            .          36.22        23.47          .



 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       118.00
 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                 .            .            .        2661.00      2053.00      1685.00      1388.00      1074.00       962.00
 Standard Error        .            .            .            .         249.62       179.57       159.35       124.00        80.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              740.00       583.00       413.00       289.00       158.00
 Standard Error      83.25        65.85        55.46        37.66          .



 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                 .            .            .            .        2571.00      1834.00      1372.00      1113.00       957.00
 Standard Error        .            .            .            .            .         303.45       175.54        99.47        82.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              747.00       546.00       371.00       227.00       168.00
 Standard Error      86.92        71.17        53.11        27.99          .



 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                 .            .            .        2841.00      2114.00      1692.00      1324.00      1077.00       869.00
 Standard Error        .            .            .            .         278.91       187.18       140.63       100.37        88.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              661.00       491.00       365.00       221.00       135.00
 Standard Error      73.67        51.36        42.95        30.63          .



 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                 .            .            .            .        2659.00      2198.00      1553.00      1302.00      1021.00
 Standard Error        .            .            .            .            .         268.26       209.15       120.19       100.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              814.00       595.00       372.00       224.00       175.00
 Standard Error      85.72        80.65        56.68        27.16          .



 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                 .            .            .            .            .        2204.00      1717.00      1316.00      1071.00
 Standard Error        .            .            .            .            .            .         208.69       148.28       115.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              787.00       616.00       413.00       301.00       169.00
 Standard Error     102.02        68.72        50.72        33.44          .



 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                 .            .            .            .            .        2036.00      1705.00      1302.00       912.00
 Standard Error        .            .            .            .            .            .         163.45       162.63       131.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              631.00       465.00       364.00       245.00       129.00
 Standard Error      79.66        43.37        31.45        28.98          .



 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                 .            .            .            .            .        1792.00      1573.00      1252.00       942.00
 Standard Error        .            .            .            .            .            .         104.23       135.57       106.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              730.00       553.00       400.00       235.00       162.00
 Standard Error      71.67        57.87        49.39        32.87          .



 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                 .            .            .            .            .            .            .        1262.00       962.00
 Standard Error        .            .            .            .            .            .            .            .         110.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              673.00       525.00       378.00       231.00       132.00
 Standard Error      77.66        48.53        41.42        31.00          .



 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                 .            .            .            .            .            .            .            .            .
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              760.00       589.00       410.00       261.00       148.00
 Standard Error        .          60.41        51.02        33.52          .



 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              642.00       439.00       307.00       184.00       105.00
 Standard Error        .          60.35        40.42        26.08          .



 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                 .            .            .         296.00       184.00
 Standard Error        .            .            .            .            .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           66101      16583       49518         74.91
  YEARPLAC        1991.00          8546       3030        5516         64.54
  YEARPLAC        1992.00          8600       2944        5656         65.77
  YEARPLAC        1993.00          7529       2454        5075         67.41
  YEARPLAC        1994.00          6701       2038        4663         69.59
  YEARPLAC        1995.00          6064       1690        4374         72.13
  YEARPLAC        1996.00          5902       1451        4451         75.42
  YEARPLAC        1997.00          5121       1064        4057         79.22
  YEARPLAC        1998.00          4759        861        3898         81.91
  YEARPLAC        1999.00          4669        595        4074         87.26
  YEARPLAC        2000.00          4129        343        3786         91.69
  YEARPLAC        2001.00          4081        113        3968         97.23

PATAGEG2       30 to 39           57729      16745       40984         70.99
  YEARPLAC        1991.00          5723       2413        3310         57.84
  YEARPLAC        1992.00          5407       2078        3329         61.57
  YEARPLAC        1993.00          6294       2453        3841         61.03
  YEARPLAC        1994.00          5957       2093        3864         64.86
  YEARPLAC        1995.00          5654       1891        3763         66.55
  YEARPLAC        1996.00          5310       1614        3696         69.60
  YEARPLAC        1997.00          5419       1437        3982         73.48
  YEARPLAC        1998.00          4893       1173        3720         76.03
  YEARPLAC        1999.00          4584        847        3737         81.52
  YEARPLAC        2000.00          4515        529        3986         88.28
  YEARPLAC        2001.00          3973        217        3756         94.54

PATAGEG2       40 to 49           37907      12439       25468         67.19
  YEARPLAC        1991.00          3919       1801        2118         54.04
  YEARPLAC        1992.00          4312       1864        2448         56.77
  YEARPLAC        1993.00          3672       1554        2118         57.68
  YEARPLAC        1994.00          3668       1460        2208         60.20
  YEARPLAC        1995.00          3564       1395        2169         60.86
  YEARPLAC        1996.00          3348       1166        2182         65.17
  YEARPLAC        1997.00          3182       1015        2167         68.10
  YEARPLAC        1998.00          3358        902        2456         73.14
  YEARPLAC        1999.00          2965        673        2292         77.30
  YEARPLAC        2000.00          2940        446        2494         84.83
  YEARPLAC        2001.00          2979        163        2816         94.53

PATAGEG2       50 to 59           23257       7816       15441         66.39
  YEARPLAC        1991.00          2006        918        1088         54.24
  YEARPLAC        1992.00          2163        995        1168         54.00
  YEARPLAC        1993.00          2419       1091        1328         54.90
  YEARPLAC        1994.00          2137        922        1215         56.86
  YEARPLAC        1995.00          2038        806        1232         60.45
  YEARPLAC        1996.00          2038        751        1287         63.15
  YEARPLAC        1997.00          2228        745        1483         66.56
  YEARPLAC        1998.00          2107        613        1494         70.91
  YEARPLAC        1999.00          2140        516        1624         75.89
  YEARPLAC        2000.00          2127        357        1770         83.22
  YEARPLAC        2001.00          1854        102        1752         94.50

PATAGEG2       60 to 69           11832       4303        7529         63.63
  YEARPLAC        1991.00          1219        567         652         53.49
  YEARPLAC        1992.00          1119        522         597         53.35
  YEARPLAC        1993.00          1067        518         549         51.45
  YEARPLAC        1994.00          1216        562         654         53.78
  YEARPLAC        1995.00          1107        471         636         57.45
  YEARPLAC        1996.00          1046        412         634         60.61
  YEARPLAC        1997.00           982        350         632         64.36
  YEARPLAC        1998.00          1033        348         685         66.31
  YEARPLAC        1999.00          1013        274         739         72.95
  YEARPLAC        2000.00          1035        200         835         80.68
  YEARPLAC        2001.00           995         79         916         92.06



PATAGEG2       70 or older         5703       1947        3756         65.86
  YEARPLAC        1991.00           412        190         222         53.88
  YEARPLAC        1992.00           454        196         258         56.83
  YEARPLAC        1993.00           513        234         279         54.39
  YEARPLAC        1994.00           507        212         295         58.19
  YEARPLAC        1995.00           486        194         292         60.08
  YEARPLAC        1996.00           593        233         360         60.71
  YEARPLAC        1997.00           526        202         324         61.60
  YEARPLAC        1998.00           587        191         396         67.46
  YEARPLAC        1999.00           544        147         397         72.98
  YEARPLAC        2000.00           510        113         397         77.84
  YEARPLAC        2001.00           571         35         536         93.87

Overall                          202529      59833      142696         70.46


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

               Statistic        df       Significance

 Log Rank          31.58        10          .0005


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

               Statistic        df       Significance

 Log Rank          22.67        10          .0120


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

               Statistic        df       Significance

 Log Rank           5.85        10          .8281


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

               Statistic        df       Significance

 Log Rank           3.24        10          .9752


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

               Statistic        df       Significance

 Log Rank           6.27        10          .7920


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

               Statistic        df       Significance

 Log Rank           7.38        10          .6893







 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        .79
             ( .3734)

  1993.00        .09      .38
             ( .7659) ( .5367)

  1994.00        .00      .71      .08
             ( .9636) ( .4008) ( .7808)

  1995.00        .22      .90      .35      .10
             ( .6358) ( .3424) ( .5557) ( .7467)

  1996.00       2.37     3.73     2.97     2.71     1.52
             ( .1240) ( .0536) ( .0850) ( .0994) ( .2177)

  1997.00       7.42     8.73     9.16     7.70     5.02     2.86
             ( .0065) ( .0031) ( .0025) ( .0055) ( .0251) ( .0910)

  1998.00       2.07     1.78     4.68     2.68     1.99      .61      .20
             ( .1497) ( .1820) ( .0305) ( .1015) ( .1580) ( .4356) ( .6586)

  1999.00       5.81     7.06    11.84    12.21    10.14     3.57      .78     3.20
             ( .0160) ( .0079) ( .0006) ( .0005) ( .0014) ( .0590) ( .3773) ( .0736)

  2000.00       1.41     2.54     5.65     8.68     6.90     2.46      .63     2.21      .17
             ( .2352) ( .1111) ( .0175) ( .0032) ( .0086) ( .1165) ( .4270) ( .1369) ( .6767)

  2001.00        .09      .12      .41     2.75     3.59     1.87      .52      .95      .12     2.26
             ( .7669) ( .7332) ( .5243) ( .0975) ( .0581) ( .1712) ( .4727) ( .3295) ( .7306) ( .1328)


 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       5.70
             ( .0169)

  1993.00        .76     8.91
             ( .3825) ( .0028)

  1994.00       1.61      .56     5.38
             ( .2049) ( .4557) ( .0204)

  1995.00        .01     2.72     1.37      .39
             ( .9115) ( .0989) ( .2426) ( .5305)

  1996.00        .05     1.12     1.97      .01      .02
             ( .8168) ( .2899) ( .1600) ( .9411) ( .8974)

  1997.00        .68      .21     3.66      .58      .09      .27
             ( .4113) ( .6476) ( .0559) ( .4457) ( .7587) ( .6021)

  1998.00        .10     2.17      .73      .20     1.02      .38      .60
             ( .7497) ( .1405) ( .3921) ( .6581) ( .3131) ( .5351) ( .4400)

  1999.00        .26      .03     3.15      .09      .00      .05      .03      .60
             ( .6127) ( .8579) ( .0761) ( .7686) ( .9749) ( .8256) ( .8732) ( .4377)

  2000.00       1.73     1.14     5.66     4.10     1.66     2.46      .90     6.42     2.89
             ( .1890) ( .2854) ( .0173) ( .0428) ( .1971) ( .1169) ( .3416) ( .0113) ( .0889)

  2001.00       9.20     9.39     1.90     1.92     3.44     1.81     3.93      .01     1.81     5.75
             ( .0024) ( .0022) ( .1681) ( .1661) ( .0636) ( .1791) ( .0474) ( .9218) ( .1788) ( .0165)



 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        .19
             ( .6644)

  1993.00        .05      .01
             ( .8172) ( .9435)

  1994.00        .19      .00      .06
             ( .6588) ( .9962) ( .8087)

  1995.00       2.53     3.08     1.93     1.48
             ( .1119) ( .0794) ( .1644) ( .2231)

  1996.00        .11      .17      .00      .04     1.65
             ( .7438) ( .6783) ( .9566) ( .8453) ( .1995)

  1997.00        .33      .15      .00      .01     1.54      .01
             ( .5644) ( .7012) ( .9781) ( .9171) ( .2150) ( .9233)

  1998.00        .01      .32     1.26     1.02     4.90     1.65     1.43
             ( .9415) ( .5731) ( .2616) ( .3131) ( .0269) ( .1983) ( .2318)

  1999.00       1.76     1.63      .04      .03     1.26      .01      .11      .80
             ( .1851) ( .2018) ( .8449) ( .8601) ( .2614) ( .9234) ( .7401) ( .3697)

  2000.00        .91     1.49      .14      .00     3.90     1.05     1.10      .01      .58
             ( .3390) ( .2224) ( .7111) ( .9941) ( .0484) ( .3064) ( .2946) ( .9061) ( .4468)

  2001.00       2.15      .91      .01      .00     2.52      .14     1.51      .34     2.45     1.10
             ( .1430) ( .3406) ( .9057) ( .9852) ( .1125) ( .7085) ( .2189) ( .5611) ( .1178) ( .2938)


 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        .88
             ( .3475)

  1993.00        .55      .07
             ( .4594) ( .7894)

  1994.00       1.31      .00      .01
             ( .2522) ( .9924) ( .9189)

  1995.00        .20      .41      .52      .36
             ( .6581) ( .5211) ( .4715) ( .5481)

  1996.00        .51      .05      .00      .12      .01
             ( .4770) ( .8311) ( .9621) ( .7273) ( .9114)

  1997.00        .21      .40      .00      .36      .01      .10
             ( .6503) ( .5266) ( .9873) ( .5473) ( .9153) ( .7540)

  1998.00        .08      .68      .09      .54      .11      .35      .00
             ( .7732) ( .4087) ( .7664) ( .4640) ( .7423) ( .5560) ( .9577)

  1999.00        .61      .11      .43      .29      .09      .46      .00      .52
             ( .4355) ( .7456) ( .5131) ( .5907) ( .7615) ( .4966) ( .9790) ( .4729)

  2000.00       1.18      .29      .82      .23      .12      .41      .04      .67      .01
             ( .2783) ( .5924) ( .3654) ( .6332) ( .7237) ( .5229) ( .8381) ( .4135) ( .9098)

  2001.00        .02      .44      .13     3.12     2.21     4.46     1.38     3.94      .42     2.63
             ( .8958) ( .5049) ( .7213) ( .0775) ( .1375) ( .0347) ( .2394) ( .0470) ( .5184) ( .1051)



 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        .07
             ( .7945)

  1993.00       1.34      .71
             ( .2477) ( .3991)

  1994.00       1.09      .26      .02
             ( .2974) ( .6072) ( .8856)

  1995.00        .11      .11      .73      .89
             ( .7432) ( .7382) ( .3933) ( .3459)

  1996.00        .00      .21      .91     1.64      .01
             ( .9922) ( .6460) ( .3389) ( .2003) ( .9226)

  1997.00        .01      .00      .83     2.07      .15      .07
             ( .9243) ( .9516) ( .3636) ( .1504) ( .6995) ( .7985)

  1998.00       1.49      .75      .13      .16      .40      .71     1.42
             ( .2217) ( .3880) ( .7233) ( .6890) ( .5252) ( .4010) ( .2342)

  1999.00        .85      .39      .05      .54      .07      .24      .45      .02
             ( .3565) ( .5347) ( .8163) ( .4626) ( .7893) ( .6214) ( .5034) ( .8971)

  2000.00       2.23     1.45      .25      .12      .24      .33     1.23      .11      .01
             ( .1357) ( .2292) ( .6173) ( .7252) ( .6227) ( .5657) ( .2672) ( .7458) ( .9361)

  2001.00       3.82     2.72     1.12      .08     1.66      .00     3.22      .02      .68      .18
             ( .0506) ( .0990) ( .2899) ( .7761) ( .1973) ( .9702) ( .0728) ( .8766) ( .4090) ( .6746)


 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        .36
             ( .5483)

  1993.00        .00      .38
             ( .9647) ( .5376)

  1994.00       1.42      .38     1.70
             ( .2342) ( .5364) ( .1917)

  1995.00       2.50      .94     3.00      .09
             ( .1140) ( .3312) ( .0832) ( .7645)

  1996.00        .47      .11     1.17      .27      .63
             ( .4915) ( .7446) ( .2786) ( .6031) ( .4263)

  1997.00        .16      .07      .73      .27      .72      .11
             ( .6885) ( .7948) ( .3943) ( .6006) ( .3952) ( .7350)

  1998.00        .43      .54     1.32      .03      .24      .01      .02
             ( .5121) ( .4626) ( .2510) ( .8587) ( .6221) ( .9146) ( .8802)

  1999.00        .20      .30     1.10      .06      .14      .45      .11      .28
             ( .6546) ( .5852) ( .2941) ( .8115) ( .7054) ( .5046) ( .7352) ( .5950)

  2000.00       1.64      .99      .07     1.79     2.03      .04     1.00      .44     1.84
             ( .2005) ( .3203) ( .7877) ( .1813) ( .1541) ( .8371) ( .3176) ( .5081) ( .1753)

  2001.00        .02      .79     1.37      .69      .02     1.31      .79      .97      .64     5.18
             ( .8757) ( .3750) ( .2427) ( .4055) ( .8978) ( .2520) ( .3735) ( .3258) ( .4245) ( .0229)






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 27-JUN-2003 15:01:21
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 19071
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 0:00:04.18




 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                 .            .        3244.00      2859.00      2318.00      1938.00      1664.00      1303.00      1121.00
 Standard Error        .            .            .         333.55       306.24       214.69       212.71       171.00       134.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              850.00       700.00       468.00       332.00       188.00
 Standard Error     117.75        99.65        91.41        53.42          .



 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                 .            .        3206.00      2419.00      2100.00      1776.00      1541.00      1337.00      1097.00
 Standard Error        .            .            .         350.86       209.12       165.64       129.77       146.49       157.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              786.00       595.00       482.00       259.00       178.00
 Standard Error     133.32        73.21        67.99        50.97          .



 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                 .            .        3118.00      2728.00      2139.00      1658.00      1346.00      1109.00       978.00
 Standard Error        .            .            .         271.69       309.33       232.43       154.09       100.19        62.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              864.00       650.00       511.00       314.00       175.00
 Standard Error      75.23        76.52        66.97        54.41          .



 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                 .            .            .            .        2450.00      2003.00      1559.00      1344.00      1183.00
 Standard Error        .            .            .            .            .         275.37       194.70       116.35       117.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              933.00       699.00       504.00       322.00       203.00
 Standard Error     123.85       110.89        82.84        53.04          .



 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                 .            .            .            .        2028.00      1742.00      1399.00      1149.00       846.00
 Standard Error        .            .            .            .            .         177.28       196.27       150.95       148.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              606.00       495.00       393.00       319.00       182.00
 Standard Error      86.89        49.80        35.27        36.73          .



 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                 .            .            .            .            .        1673.00      1182.00      1035.00       802.00
 Standard Error        .            .            .            .            .            .         188.78       106.35        89.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              707.00       554.00       439.00       302.00       147.00
 Standard Error      62.05        58.40        54.71        53.41          .



 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                 .            .            .            .            .            .            .        1422.00      1161.00
 Standard Error        .            .            .            .            .            .            .            .         158.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              874.00       671.00       479.00       213.00        67.00
 Standard Error     134.18        85.74        98.05        71.17          .



 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                 .            .            .            .            .            .        1374.00      1225.00      1092.00
 Standard Error        .            .            .            .            .            .            .         104.95       130.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              788.00       600.00       461.00       308.00       182.00
 Standard Error     120.27        98.69        60.62        56.16          .



 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                 .            .            .            .            .            .            .            .         842.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              644.00       501.00       365.00       216.00        62.00
 Standard Error      94.33        66.55        63.48        52.76          .



 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                 .         525.00       457.00       249.00       161.00
 Standard Error        .            .          65.84        52.93          .



 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                 .            .         338.00       211.00       105.00
 Standard Error        .            .            .          43.68          .



 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                 .        3704.00      3017.00      2802.00      2513.00      1944.00      1546.00      1364.00       999.00
 Standard Error        .            .         304.01       200.33       301.72       317.91       190.13       173.21       187.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              720.00       557.00       375.00       258.00       176.00
 Standard Error     127.17        88.41        66.75        37.58          .



 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                 .        3487.00      3256.00      2569.00      2182.00      1879.00      1391.00      1062.00       826.00
 Standard Error        .            .         302.44       367.57       266.02       280.59       276.81       179.02       101.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              735.00       544.00       420.00       306.00       154.00
 Standard Error      83.28        84.18        56.57        54.46          .



 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                 .            .            .        2425.00      1834.00      1392.00      1103.00       816.00       699.00
 Standard Error        .            .            .            .         306.15       215.13       156.79       110.44        70.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              539.00       423.00       347.00       194.00        91.00
 Standard Error      64.74        43.81        44.80        43.23          .



 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                 .            .            .            .        2345.00      1832.00      1525.00      1163.00       881.00
 Standard Error        .            .            .            .            .         240.27       176.29       157.57       126.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              614.00       444.00       297.00       174.00        83.00
 Standard Error      96.50        64.88        49.03        32.14          .



 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                 .            .            .        2288.00      2042.00      1828.00      1322.00      1071.00       802.00
 Standard Error        .            .            .            .         159.18       189.15       196.51       126.94       104.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              609.00       483.00       303.00       191.00       101.00
 Standard Error      70.05        62.19        49.62        29.93          .



 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                 .            .            .        1842.00      1463.00      1220.00      1049.00       849.00       729.00
 Standard Error        .            .            .            .         162.10       107.63        91.55        83.67        69.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              545.00       385.00       276.00       187.00       109.00
 Standard Error      70.67        54.58        32.97        24.30          .



 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                 .            .            .            .            .        1407.00      1142.00       955.00       746.00
 Standard Error        .            .            .            .            .            .         116.30        97.28        73.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              641.00       509.00       319.00       157.00        68.00
 Standard Error      51.27        66.88        61.67        34.40          .



 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                 .            .            .            .            .        1350.00      1114.00       883.00       705.00
 Standard Error        .            .            .            .            .            .         120.30        96.46        75.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              555.00       412.00       269.00       168.00        79.00
 Standard Error      62.89        57.78        41.33        27.71          .



 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                 .            .            .            .            .            .        1013.00       763.00       571.00
 Standard Error        .            .            .            .            .            .            .         100.90        72.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              434.00       347.00       217.00       175.00       104.00
 Standard Error      47.91        40.70        29.02        15.75          .



 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              662.00       460.00       350.00       224.00        93.00
 Standard Error        .          64.83        43.77        39.12          .



 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                 .            .         273.00       127.00        49.00
 Standard Error        .            .            .          36.45          .



 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                 .        3345.00      2825.00      2371.00      2076.00      1642.00      1291.00      1083.00       868.00
 Standard Error        .            .         312.35       290.37       297.44       250.92       178.26       131.97       134.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              744.00       521.00       366.00       196.00       131.00
 Standard Error     107.23        92.99        71.87        44.97          .



 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                 .        3376.00      2421.00      1728.00      1400.00      1109.00       924.00       777.00       630.00
 Standard Error        .            .         430.25       266.12       158.74       125.60        87.03        71.78        79.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              435.00       346.00       248.00       186.00       105.00
 Standard Error      59.34        39.50        28.82        22.06          .



 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                 .        2536.00      2052.00      1726.00      1507.00      1323.00      1086.00       879.00       695.00
 Standard Error        .         293.14       238.00       159.99       114.95       117.71       119.93       104.81        85.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              569.00       407.00       288.00       189.00        85.00
 Standard Error      72.85        61.28        42.72        32.86          .



 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                 .            .        2829.00      2484.00      1891.00      1630.00      1390.00      1152.00       949.00
 Standard Error        .            .            .         243.64       238.86       133.95       125.55       117.79       105.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              723.00       561.00       421.00       252.00       112.00
 Standard Error      92.56        63.48        57.45        47.72          .



 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                 .            .            .        2376.00      1942.00      1364.00      1060.00       870.00       716.00
 Standard Error        .            .            .            .         281.75       235.73       129.94        91.15        75.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              570.00       386.00       263.00       163.00        85.00
 Standard Error      74.32        64.49        42.31        28.27          .



 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                 .            .            .        1862.00      1550.00      1303.00       998.00       770.00       635.00
 Standard Error        .            .            .            .         148.14       148.83       129.83        90.71        65.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              495.00       378.00       270.00       194.00       105.00
 Standard Error      57.64        44.10        33.48        25.39          .



 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                 .            .            .            .        1583.00      1179.00       928.00       714.00       602.00
 Standard Error        .            .            .            .            .         174.26       123.92        85.55        57.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              489.00       364.00       250.00       167.00        84.00
 Standard Error      56.19        53.70        39.96        25.75          .



 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                 .            .            .            .        1360.00      1078.00       943.00       764.00       593.00
 Standard Error        .            .            .            .            .         102.11        86.20        83.52        67.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              483.00       370.00       279.00       194.00       107.00
 Standard Error      50.35        42.15        31.90        26.16          .



 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                 .            .            .            .        1031.00       879.00       750.00       614.00       469.00
 Standard Error        .            .            .            .            .          72.47        68.45        69.45        55.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              372.00       252.00       158.00        94.00        36.00
 Standard Error      46.98        43.61        29.41        18.64          .



 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                 .            .            .            .            .            .            .            .         599.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              474.00       346.00       217.00       154.00        63.00
 Standard Error      59.47        49.16        33.35        22.81          .



 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                 .         304.00       199.00       165.00        85.00
 Standard Error        .            .          30.39        21.15          .



 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                 .        3461.00      2624.00      2351.00      1814.00      1497.00      1357.00      1190.00       882.00
 Standard Error        .            .         503.23       378.04       327.70       169.42       114.62       181.16       187.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              728.00       503.00       375.00       225.00        77.00
 Standard Error     133.47       107.69        86.18        62.87          .



 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                 .        2697.00      2255.00      1950.00      1733.00      1582.00      1211.00       948.00       756.00
 Standard Error        .         254.00       257.87       166.18       132.82       184.91       204.77       139.05       123.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              570.00       427.00       320.00       214.00       100.00
 Standard Error      84.97        62.93        46.66        40.68          .



 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                 .            .            .        2671.00      1938.00      1641.00      1303.00       982.00       690.00
 Standard Error        .            .            .            .         311.82       206.52       192.00       173.66       127.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              530.00       429.00       350.00       228.00       133.00
 Standard Error      70.43        42.19        42.07        38.14          .



 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                 .            .            .        2365.00      1771.00      1539.00      1180.00       864.00       742.00
 Standard Error        .            .            .            .         287.14       185.13       201.63       128.69        77.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       429.00       265.00       190.00       119.00
 Standard Error      78.70        69.59        49.50        26.04          .



 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                 .            .        2376.00      1850.00      1500.00      1264.00       962.00       817.00       699.00
 Standard Error        .            .            .         267.71       186.89       164.76       143.76        77.96        78.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              554.00       419.00       275.00       173.00        89.00
 Standard Error      77.25        66.96        51.06        34.02          .



 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                 .            .            .        1994.00      1637.00      1255.00       959.00       869.00       727.00
 Standard Error        .            .            .            .         203.88       192.52       105.05        67.24        93.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              505.00       413.00       304.00       205.00       146.00
 Standard Error      74.30        46.32        38.76        24.41          .



 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                 .            .            .        1757.00      1675.00      1405.00      1211.00       856.00       690.00
 Standard Error        .            .            .            .         106.76       129.39       143.23       131.98        76.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              553.00       383.00       247.00       183.00       101.00
 Standard Error      69.74        64.61        37.29        27.50          .



 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                 .            .            .            .            .        1259.00      1071.00       812.00       623.00
 Standard Error        .            .            .            .            .            .         117.84       114.05        74.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              510.00       383.00       245.00       180.00        96.00
 Standard Error      55.30        54.52        38.66        25.70          .



 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                 .            .            .            .            .            .        1039.00       761.00       575.00
 Standard Error        .            .            .            .            .            .            .          97.35        77.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              449.00       328.00       203.00       171.00        63.00
 Standard Error      54.05        45.43        29.07        21.50          .



 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                 .            .            .            .            .            .            .         602.00       453.00
 Standard Error        .            .            .            .            .            .            .            .          52.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              367.00       232.00       180.00       110.00        42.00
 Standard Error      48.63        36.16        21.40        20.10          .



 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                 .         238.00       189.00       138.00        68.00
 Standard Error        .            .          22.30        19.43          .



 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                 .        3604.00      2747.00      2183.00      1814.00      1568.00      1390.00      1085.00       834.00
 Standard Error        .            .         549.74       391.80       247.68       176.57       187.59       190.91       130.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              731.00       542.00       363.00       234.00       150.00
 Standard Error      95.84       108.33        83.63        47.73          .



 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                 .            .        3129.00      2415.00      2000.00      1484.00      1211.00       991.00       868.00
 Standard Error        .            .            .         474.22       381.47       283.50       187.69       130.15       104.93

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              709.00       588.00       414.00       222.00        97.00
 Standard Error      86.82        93.93        92.08        69.07          .



 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                 .        2976.00      2455.00      2255.00      1721.00      1512.00      1092.00       964.00       798.00
 Standard Error        .            .         308.55       337.64       306.60       227.83       196.65       109.82       125.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              623.00       393.00       274.00       165.00        91.00
 Standard Error     125.04        97.48        59.14        37.38          .



 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                 .            .        2262.00      1942.00      1739.00      1340.00      1002.00       826.00       607.00
 Standard Error        .            .            .         165.97       208.20       231.78       161.93       116.96       104.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              455.00       346.00       242.00       186.00        83.00
 Standard Error      68.40        52.36        34.94        28.05          .



 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                 .            .        2023.00      1586.00      1366.00      1120.00       912.00       789.00       674.00
 Standard Error        .            .            .         238.52       171.39       152.45       107.31        83.69       104.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              469.00       301.00       230.00       100.00        36.00
 Standard Error     106.16        64.32        48.32        38.87          .



 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                 .            .        2130.00      1892.00      1387.00      1101.00       865.00       646.00       486.00
 Standard Error        .            .            .         244.96       274.12       182.12       152.05       124.90        87.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              364.00       250.00       190.00       123.00        63.00
 Standard Error      66.89        46.89        31.70        24.92          .



 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                 .            .            .            .        1376.00      1050.00       912.00       629.00       553.00
 Standard Error        .            .            .            .            .         163.16       144.20       126.37        67.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              421.00       318.00       223.00       139.00        62.00
 Standard Error      72.63        54.21        45.11        35.52          .



 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                 .            .            .            .        1212.00      1088.00       819.00       654.00       575.00
 Standard Error        .            .            .            .            .         127.47       133.28        75.30        71.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              407.00       338.00       251.00       146.00        39.00
 Standard Error      64.80        39.18        42.98        39.02          .



 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                 .            .            .            .            .            .            .         888.00       673.00
 Standard Error        .            .            .            .            .            .            .            .          92.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              561.00       407.00       292.00       183.00       126.00
 Standard Error      70.45        70.33        48.64        30.64          .



 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                 .            .            .            .            .            .            .            .         534.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              425.00       349.00       231.00       181.00        69.00
 Standard Error      51.46        44.22        36.23        28.85          .



 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                 .            .            .         321.00       180.00
 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                 .        3345.00      1899.00      1819.00      1543.00      1356.00       881.00       741.00       595.00
 Standard Error        .            .         792.39       212.55       427.64       346.38       340.73       149.35       105.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              507.00       441.00       343.00       144.00       115.00
 Standard Error      97.90        96.61        99.58        76.70          .



 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                 .        3153.00      2804.00      2381.00      1526.00      1463.00       968.00       784.00       637.00
 Standard Error        .            .         389.65       555.58       476.13       288.49       284.88       164.18       139.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              552.00       382.00       231.00       169.00       105.00
 Standard Error     102.72        98.70        74.35        44.49          .



 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                 .            .            .        2267.00      1994.00      1806.00      1366.00      1102.00       735.00
 Standard Error        .            .            .            .         234.42       321.51       296.42       258.80       203.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              632.00       500.00       351.00       181.00        69.00
 Standard Error     103.67        92.15       100.08        73.00          .



 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                 .            .        2550.00      2042.00      1760.00      1400.00      1230.00      1076.00       802.00
 Standard Error        .            .            .         325.62       258.80       213.74       133.92       168.14       164.86

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              645.00       477.00       399.00       285.00       189.00
 Standard Error     113.14        87.00        51.82        55.57          .



 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                 .            .            .        2122.00      1707.00      1155.00       870.00       700.00       562.00
 Standard Error        .            .            .            .         389.10       348.29       189.32       122.23       108.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              386.00       283.00       196.00       147.00        72.00
 Standard Error      94.99        59.55        34.32        28.99          .



 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                 .            .        2024.00      1828.00      1474.00      1225.00       852.00       714.00       568.00
 Standard Error        .            .            .         220.12       220.67       247.67       200.55        97.62        85.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              473.00       356.00       281.00       175.00        80.00
 Standard Error      69.12        57.32        51.78        42.71          .



 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                 .            .            .            .            .        1524.00      1155.00       853.00       725.00
 Standard Error        .            .            .            .            .            .         270.00       171.50       135.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              490.00       350.00       201.00       134.00        77.00
 Standard Error     131.84        95.72        60.29        30.51          .



 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                 .            .            .            .            .        1287.00      1086.00       843.00       656.00
 Standard Error        .            .            .            .            .            .         151.46       140.47        99.96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       398.00       302.00       191.00       140.00
 Standard Error      79.56        70.25        50.47        34.10          .



 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                 .            .            .            .            .            .            .         871.00       650.00
 Standard Error        .            .            .            .            .            .            .            .         102.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              539.00       413.00       358.00       225.00       173.00
 Standard Error      72.28        49.87        48.27        40.70          .



 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              483.00       365.00       225.00       171.00        78.00
 Standard Error        .          69.87        48.27        32.60          .



 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                 .         300.00       198.00       131.00        54.00
 Standard Error        .            .          47.90        31.32          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29            3241       1178        2063         63.65
  YEARPLAC        1991.00           246        124         122         49.59
  YEARPLAC        1992.00           297        156         141         47.47
  YEARPLAC        1993.00           371        174         197         53.10
  YEARPLAC        1994.00           302        129         173         57.28
  YEARPLAC        1995.00           323        142         181         56.04
  YEARPLAC        1996.00           326        136         190         58.28
  YEARPLAC        1997.00           290         88         202         69.66
  YEARPLAC        1998.00           261         81         180         68.97
  YEARPLAC        1999.00           277         75         202         72.92
  YEARPLAC        2000.00           253         48         205         81.03
  YEARPLAC        2001.00           295         25         270         91.53

PATAGEG2       30 to 39            4033       1616        2417         59.93
  YEARPLAC        1991.00           245        129         116         47.35
  YEARPLAC        1992.00           230        122         108         46.96
  YEARPLAC        1993.00           325        165         160         49.23
  YEARPLAC        1994.00           389        184         205         52.70
  YEARPLAC        1995.00           408        188         220         53.92
  YEARPLAC        1996.00           419        208         211         50.36
  YEARPLAC        1997.00           414        171         243         58.70
  YEARPLAC        1998.00           430        169         261         60.70
  YEARPLAC        1999.00           441        157         284         64.40
  YEARPLAC        2000.00           377         81         296         78.51
  YEARPLAC        2001.00           355         42         313         88.17

PATAGEG2       40 to 49            3989       1791        2198         55.10
  YEARPLAC        1991.00           250        145         105         42.00
  YEARPLAC        1992.00           388        228         160         41.24
  YEARPLAC        1993.00           330        199         131         39.70
  YEARPLAC        1994.00           367        187         180         49.05
  YEARPLAC        1995.00           352        179         173         49.15
  YEARPLAC        1996.00           380        197         183         48.16
  YEARPLAC        1997.00           342        161         181         52.92
  YEARPLAC        1998.00           377        170         207         54.91
  YEARPLAC        1999.00           373        163         210         56.30
  YEARPLAC        2000.00           412        112         300         72.82
  YEARPLAC        2001.00           418         50         368         88.04

PATAGEG2       50 to 59            3544       1499        2045         57.70
  YEARPLAC        1991.00           174         98          76         43.68
  YEARPLAC        1992.00           250        147         103         41.20
  YEARPLAC        1993.00           289        148         141         48.79
  YEARPLAC        1994.00           287        148         139         48.43
  YEARPLAC        1995.00           273        146         127         46.52
  YEARPLAC        1996.00           334        167         167         50.00
  YEARPLAC        1997.00           353        157         196         55.52
  YEARPLAC        1998.00           361        151         210         58.17
  YEARPLAC        1999.00           397        147         250         62.97
  YEARPLAC        2000.00           407        131         276         67.81
  YEARPLAC        2001.00           419         59         360         85.92

PATAGEG2       60 to 69            2449       1074        1375         56.15
  YEARPLAC        1991.00           172         95          77         44.77
  YEARPLAC        1992.00           187         95          92         49.20
  YEARPLAC        1993.00           187        100          87         46.52
  YEARPLAC        1994.00           270        146         124         45.93
  YEARPLAC        1995.00           218        126          92         42.20
  YEARPLAC        1996.00           214        112         102         47.66
  YEARPLAC        1997.00           201         98         103         51.24
  YEARPLAC        1998.00           248        118         130         52.42
  YEARPLAC        1999.00           249         87         162         65.06
  YEARPLAC        2000.00           283         83         200         70.67
  YEARPLAC        2001.00           220         14         206         93.64



PATAGEG2       70 or older         1815        706        1109         61.10
  YEARPLAC        1991.00            87         46          41         47.13
  YEARPLAC        1992.00           113         60          53         46.90
  YEARPLAC        1993.00           136         62          74         54.41
  YEARPLAC        1994.00           156         79          77         49.36
  YEARPLAC        1995.00           157         78          79         50.32
  YEARPLAC        1996.00           174         88          86         49.43
  YEARPLAC        1997.00           147         62          85         57.82
  YEARPLAC        1998.00           211         85         126         59.72
  YEARPLAC        1999.00           187         64         123         65.78
  YEARPLAC        2000.00           209         52         157         75.12
  YEARPLAC        2001.00           238         30         208         87.39

Overall                           19071       7864       11207         58.76


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

               Statistic        df       Significance

 Log Rank           8.27        10          .6023


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

               Statistic        df       Significance

 Log Rank          18.56        10          .0462


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

               Statistic        df       Significance

 Log Rank          26.05        10          .0037


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

               Statistic        df       Significance

 Log Rank          24.64        10          .0061


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

               Statistic        df       Significance

 Log Rank          17.17        10          .0707


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

               Statistic        df       Significance

 Log Rank           5.21        10          .8768







 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        .14
             ( .7128)

  1993.00        .24      .02
             ( .6206) ( .8814)

  1994.00        .11      .70      .50
             ( .7414) ( .4017) ( .4786)

  1995.00        .88      .03      .43     1.16
             ( .3475) ( .8735) ( .5144) ( .2815)

  1996.00        .94      .10      .21     1.21      .04
             ( .3312) ( .7540) ( .6478) ( .2721) ( .8372)

  1997.00        .42     1.81     2.40      .61     3.06     3.65
             ( .5156) ( .1790) ( .1211) ( .4350) ( .0801) ( .0560)

  1998.00        .28      .11      .02      .69      .17      .64      .92
             ( .5980) ( .7352) ( .8781) ( .4052) ( .6763) ( .4249) ( .3376)

  1999.00       1.17      .51      .74     1.64      .06      .08      .94      .43
             ( .2800) ( .4760) ( .3898) ( .2006) ( .8123) ( .7745) ( .3329) ( .5135)

  2000.00       1.19      .18     1.14     1.10      .17      .04      .92      .19      .35
             ( .2758) ( .6698) ( .2849) ( .2949) ( .6775) ( .8393) ( .3366) ( .6654) ( .5564)

  2001.00       2.30     1.42     2.09     3.31     2.28     1.54      .29     1.59      .00     1.14
             ( .1291) ( .2338) ( .1487) ( .0690) ( .1308) ( .2145) ( .5890) ( .2074) ( .9998) ( .2861)


 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        .05
             ( .8306)

  1993.00        .46      .52
             ( .4988) ( .4693)

  1994.00        .20      .01      .82
             ( .6580) ( .9167) ( .3641)

  1995.00       1.44      .52      .27      .53
             ( .2294) ( .4727) ( .6036) ( .4650)

  1996.00       7.64     5.25     1.02     6.30     4.08
             ( .0057) ( .0219) ( .3122) ( .0121) ( .0434)

  1997.00       2.47     1.11      .05     1.05      .71     1.96
             ( .1162) ( .2913) ( .8167) ( .3054) ( .4001) ( .1612)

  1998.00       5.36     2.11      .00     2.27     1.47      .43      .17
             ( .0206) ( .1459) ( .9497) ( .1319) ( .2247) ( .5130) ( .6759)

  1999.00       7.09     4.34      .61     4.82     3.67      .35     2.50      .68
             ( .0078) ( .0372) ( .4359) ( .0281) ( .0555) ( .5529) ( .1138) ( .4092)

  2000.00        .46      .73      .45      .07      .01      .91      .00      .83     4.96
             ( .4970) ( .3913) ( .5031) ( .7845) ( .9328) ( .3389) ( .9770) ( .3625) ( .0260)

  2001.00       3.61     5.12     1.38      .36     1.16      .48      .60      .16      .00     1.91
             ( .0575) ( .0236) ( .2398) ( .5502) ( .2810) ( .4886) ( .4404) ( .6862) ( .9560) ( .1665)



 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       1.38
             ( .2395)

  1993.00       2.79      .21
             ( .0946) ( .6435)

  1994.00        .06     3.56     4.84
             ( .7992) ( .0593) ( .0278)

  1995.00        .33     1.26     1.80      .95
             ( .5647) ( .2621) ( .1793) ( .3288)

  1996.00       2.91      .12      .04     3.73     1.11
             ( .0879) ( .7288) ( .8430) ( .0533) ( .2918)

  1997.00       2.58      .20      .00     4.30      .57      .01
             ( .1079) ( .6574) ( .9679) ( .0381) ( .4486) ( .9347)

  1998.00       3.43      .00      .90     8.32      .98      .40      .05
             ( .0640) ( .9716) ( .3441) ( .0039) ( .3234) ( .5275) ( .8247)

  1999.00      14.67     3.68     7.99    23.82     7.23     5.37     3.54     4.19
             ( .0001) ( .0551) ( .0047) ( .0000) ( .0072) ( .0205) ( .0600) ( .0407)

  2000.00       3.71      .01      .93     8.07      .83      .06      .01      .03     2.26
             ( .0541) ( .9237) ( .3344) ( .0045) ( .3615) ( .8026) ( .9343) ( .8566) ( .1331)

  2001.00       3.92      .44     1.09     6.67      .60     1.29      .20     1.18     1.53      .00
             ( .0478) ( .5056) ( .2959) ( .0098) ( .4370) ( .2569) ( .6538) ( .2778) ( .2161) ( .9450)


 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       1.49
             ( .2225)

  1993.00        .19     2.93
             ( .6635) ( .0867)

  1994.00        .02     1.34      .12
             ( .8833) ( .2469) ( .7276)

  1995.00       1.14      .01     2.05     1.16
             ( .2859) ( .9030) ( .1526) ( .2822)

  1996.00        .74      .05     1.20      .67      .08
             ( .3910) ( .8287) ( .2742) ( .4126) ( .7713)

  1997.00        .61      .50      .96      .33      .13      .00
             ( .4365) ( .4814) ( .3260) ( .5668) ( .7164) ( .9831)

  1998.00       1.97      .85     1.18      .42      .05      .01      .26
             ( .1601) ( .3568) ( .2766) ( .5154) ( .8243) ( .9364) ( .6119)

  1999.00       3.87     1.77     1.66      .69      .00      .24      .73      .25
             ( .0492) ( .1836) ( .1979) ( .4066) ( .9470) ( .6239) ( .3943) ( .6166)

  2000.00       8.26     6.43     5.39     6.33     4.70     5.59     4.88     3.23     1.82
             ( .0040) ( .0112) ( .0203) ( .0119) ( .0302) ( .0180) ( .0272) ( .0722) ( .1768)

  2001.00       6.27     5.98     9.69     4.92     3.11     7.03     2.83     2.90      .90      .08
             ( .0123) ( .0145) ( .0019) ( .0266) ( .0779) ( .0080) ( .0922) ( .0886) ( .3416) ( .7774)



 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        .04
             ( .8481)

  1993.00        .71     1.05
             ( .3986) ( .3053)

  1994.00       1.21     2.01      .21
             ( .2707) ( .1567) ( .6507)

  1995.00       2.74     3.66     1.23      .43
             ( .0980) ( .0559) ( .2677) ( .5112)

  1996.00       2.84     3.53     1.58      .46      .01
             ( .0918) ( .0603) ( .2081) ( .4993) ( .9154)

  1997.00       2.80     2.98     1.17      .70      .04      .01
             ( .0945) ( .0841) ( .2791) ( .4022) ( .8376) ( .9267)

  1998.00       5.87     4.25     2.56     1.30      .08      .00      .01
             ( .0154) ( .0394) ( .1097) ( .2534) ( .7770) ( .9484) ( .9228)

  1999.00       1.06      .89      .11      .24      .75     2.08     1.71     1.96
             ( .3036) ( .3456) ( .7438) ( .6277) ( .3861) ( .1497) ( .1910) ( .1611)

  2000.00       4.52     4.97     1.82      .05      .13      .75      .21      .14      .70
             ( .0335) ( .0258) ( .1772) ( .8185) ( .7165) ( .3859) ( .6469) ( .7132) ( .4027)

  2001.00        .52      .56     2.89     4.24     6.84     9.67     6.38     5.39     2.31     5.40
             ( .4704) ( .4554) ( .0891) ( .0396) ( .0089) ( .0019) ( .0115) ( .0203) ( .1287) ( .0201)


 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        .03
             ( .8653)

  1993.00       1.22      .73
             ( .2695) ( .3915)

  1994.00        .74      .11      .14
             ( .3896) ( .7381) ( .7123)

  1995.00        .05      .25     1.09      .82
             ( .8146) ( .6185) ( .2961) ( .3641)

  1996.00        .02      .54     2.17     1.29      .06
             ( .8916) ( .4624) ( .1410) ( .2569) ( .8050)

  1997.00        .40      .19      .42      .02      .53      .82
             ( .5271) ( .6671) ( .5169) ( .8783) ( .4657) ( .3656)

  1998.00        .11      .00      .77      .43      .56      .29      .03
             ( .7348) ( .9446) ( .3802) ( .5099) ( .4536) ( .5880) ( .8530)

  1999.00        .65      .28      .33      .75     1.25      .92      .02      .03
             ( .4200) ( .5982) ( .5681) ( .3861) ( .2643) ( .3385) ( .8837) ( .8571)

  2000.00        .31      .13      .19      .71     1.01      .58      .08      .00      .00
             ( .5752) ( .7233) ( .6595) ( .3992) ( .3141) ( .4454) ( .7761) ( .9594) ( .9929)

  2001.00        .55      .24     1.24     4.92      .02      .41      .08     1.60     3.68      .06
             ( .4564) ( .6208) ( .2651) ( .0265) ( .8958) ( .5235) ( .7782) ( .2062) ( .0552) ( .8027)






* 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 27-JUN-2003 15:01:26
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 93002
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 0:00:06.43




 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                 .            .            .            .        3578.00      2934.00      2366.00      1981.00      1539.00
 Standard Error        .            .            .            .            .         147.39       102.13        79.76        70.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1176.00       899.00       622.00       357.00       182.00
 Standard Error      51.17        39.36        32.90        20.93          .



 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                 .            .            .            .        3221.00      2522.00      2108.00      1766.00      1401.00
 Standard Error        .            .            .            .            .          97.73        61.73        53.08        46.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1095.00       826.00       574.00       379.00       184.00
 Standard Error      35.85        29.19        21.28        15.10          .



 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                 .            .            .        3659.00      3012.00      2583.00      2143.00      1826.00      1415.00
 Standard Error        .            .            .            .         128.30        97.27        77.23        68.37        67.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1045.00       783.00       560.00       370.00       176.00
 Standard Error      49.54        33.65        24.82        18.55          .



 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                 .            .            .        3431.00      2904.00      2443.00      2156.00      1717.00      1338.00
 Standard Error        .            .            .            .         157.62       116.21       103.20       102.87        79.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1044.00       782.00       593.00       392.00       189.00
 Standard Error      59.98        43.66        32.90        26.49          .



 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                 .            .            .            .        3185.00      2618.00      2142.00      1750.00      1345.00
 Standard Error        .            .            .            .            .         111.43        84.89        70.36        62.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              986.00       729.00       484.00       294.00       149.00
 Standard Error      45.18        33.12        24.85        15.56          .



 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                 .            .            .            .            .        2885.00      2312.00      1827.00      1427.00
 Standard Error        .            .            .            .            .            .          80.45        60.83        46.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1077.00       789.00       552.00       342.00       169.00
 Standard Error      36.21        26.55        19.54        13.66          .



 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                 .            .            .        3964.00      3407.00      2863.00      2356.00      1803.00      1442.00
 Standard Error        .            .            .            .         141.64       119.82       103.26        80.67        52.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1157.00       845.00       624.00       404.00       189.00
 Standard Error      43.65        34.73        24.87        19.63          .



 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                 .            .            .        3905.00      2826.00      2366.00      1925.00      1476.00      1233.00
 Standard Error        .            .            .            .         198.28       121.84       111.19        80.60        57.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              942.00       720.00       524.00       358.00       175.00
 Standard Error      50.33        36.22        27.51        21.54          .



 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                 .            .            .        3332.00      2710.00      2194.00      1862.00      1505.00      1136.00
 Standard Error        .            .            .            .         140.14        95.68        73.47        70.27        56.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              864.00       642.00       456.00       253.00       140.00
 Standard Error      40.86        30.14        24.75        16.55          .



 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                 .            .            .        3559.00      2932.00      2314.00      1885.00      1534.00      1209.00
 Standard Error        .            .            .            .         112.25        84.56        57.98        46.60        37.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              951.00       672.00       511.00       328.00       179.00
 Standard Error      31.32        23.24        15.80        12.44          .



 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                 .            .            .        3227.00      2604.00      2182.00      1744.00      1404.00      1109.00
 Standard Error        .            .            .            .         101.97        77.29        65.37        50.34        42.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              821.00       607.00       432.00       281.00       160.00
 Standard Error      33.39        23.43        17.01        11.85          .



 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                 .            .        3510.00      3202.00      2584.00      2126.00      1720.00      1379.00      1097.00
 Standard Error        .            .            .         144.16       140.36       106.56        85.89        66.19        52.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              852.00       620.00       458.00       320.00       181.00
 Standard Error      42.93        32.13        21.15        16.32          .



 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                 .            .        3107.00      2513.00      2115.00      1761.00      1463.00      1185.00       958.00
 Standard Error        .            .            .         129.60        94.00        76.12        61.94        51.16        39.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              773.00       581.00       429.00       253.00       126.00
 Standard Error      32.67        26.66        22.06        16.84          .



 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                 .            .        3388.00      2801.00      2297.00      1897.00      1499.00      1212.00       966.00
 Standard Error        .            .            .         106.18        81.06        64.93        52.00        37.34        30.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              753.00       598.00       427.00       273.00       156.00
 Standard Error      22.35        17.80        15.45        10.67          .



 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                 .            .        3840.00      2992.00      2415.00      1906.00      1484.00      1221.00       962.00
 Standard Error        .            .            .         153.82       106.93        85.15        58.45        41.83        35.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              747.00       573.00       401.00       265.00       164.00
 Standard Error      26.59        21.45        16.64        10.52          .



 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                 .            .        3323.00      2639.00      2231.00      1838.00      1502.00      1185.00       952.00
 Standard Error        .            .            .         141.88        97.19        80.91        66.72        53.39        39.21

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              749.00       566.00       420.00       288.00       155.00
 Standard Error      31.96        24.98        18.28        14.21          .



 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                 .            .        2923.00      2276.00      1744.00      1385.00      1126.00       938.00       739.00
 Standard Error        .            .            .         187.04       128.61        83.12        57.32        46.50        38.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              594.00       421.00       315.00       196.00       110.00
 Standard Error      32.72        25.92        18.32        14.28          .



 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                 .        3690.00      2985.00      2412.00      1989.00      1653.00      1345.00      1063.00       827.00
 Standard Error        .            .         147.21       103.15        72.21        57.70        49.60        40.55        32.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              626.00       474.00       352.00       208.00       131.00
 Standard Error      23.89        16.85        14.39         9.96          .



 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                 .        3040.00      2527.00      2078.00      1635.00      1302.00      1049.00       882.00       714.00
 Standard Error        .         144.57       112.11        94.31        76.35        55.51        38.49        28.69        25.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       441.00       350.00       209.00       132.00
 Standard Error      20.41        14.73        13.77        10.83          .



 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                 .        2769.00      2309.00      1993.00      1672.00      1367.00      1091.00       922.00       749.00
 Standard Error        .         202.74       102.96        80.07        72.52        64.34        46.98        34.27        30.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              595.00       449.00       356.00       237.00       149.00
 Standard Error      25.99        18.69        14.58        12.00          .



 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                 .        2745.00      2196.00      1801.00      1533.00      1170.00       948.00       772.00       623.00
 Standard Error        .            .         194.12       128.17       108.25        92.13        58.41        46.78        35.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              505.00       383.00       288.00       190.00        97.00
 Standard Error      29.29        23.98        18.86        15.68          .



 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                 .        2992.00      2366.00      1889.00      1565.00      1293.00      1041.00       828.00       659.00
 Standard Error        .            .         144.03        96.25        66.26        55.54        45.75        35.83        25.41

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              540.00       398.00       273.00       185.00       108.00
 Standard Error      21.60        18.95        13.61         8.74          .



 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                 .        3211.00      2586.00      1981.00      1646.00      1338.00      1092.00       917.00       749.00
 Standard Error        .            .         173.16       118.09        73.73        60.18        43.21        33.23        26.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              615.00       473.00       348.00       202.00       128.00
 Standard Error      23.05        20.03        17.69        12.01          .



 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                 .        3234.00      2348.00      2084.00      1663.00      1348.00      1145.00       932.00       742.00
 Standard Error        .            .         175.46       101.42       102.21        66.11        50.02        46.41        38.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              561.00       428.00       314.00       206.00       134.00
 Standard Error      30.04        21.74        16.87        11.28          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           16347       4897       11450         70.04
  DENTAGE        under 30          3964       1124        2840         71.64
  DENTAGE        30 to 39          6229       1894        4335         69.59
  DENTAGE        40 to 49          4016       1224        2792         69.52
  DENTAGE        50 or older       2138        655        1483         69.36

PATAGEG2       30 to 39           18650       5638       13012         69.77
  DENTAGE        under 30          4292       1345        2947         68.66
  DENTAGE        30 to 39          7308       2176        5132         70.22
  DENTAGE        40 to 49          4600       1333        3267         71.02
  DENTAGE        50 or older       2450        784        1666         68.00

PATAGEG2       40 to 49           17626       6107       11519         65.35
  DENTAGE        under 30          3364       1149        2215         65.84
  DENTAGE        30 to 39          6602       2224        4378         66.31
  DENTAGE        40 to 49          4948       1769        3179         64.25
  DENTAGE        50 or older       2712        965        1747         64.42

PATAGEG2       50 to 59           17029       6196       10833         63.62
  DENTAGE        under 30          3011       1107        1904         63.23
  DENTAGE        30 to 39          6067       2208        3859         63.61
  DENTAGE        40 to 49          4755       1707        3048         64.10
  DENTAGE        50 or older       3196       1174        2022         63.27

PATAGEG2       60 to 69           13164       5452        7712         58.58
  DENTAGE        under 30          1984        787        1197         60.33
  DENTAGE        30 to 39          4608       1829        2779         60.31
  DENTAGE        40 to 49          3750       1612        2138         57.01
  DENTAGE        50 or older       2822       1224        1598         56.63

PATAGEG2       70 or older        10186       4003        6183         60.70
  DENTAGE        under 30          1436        570         866         60.31
  DENTAGE        30 to 39          3253       1313        1940         59.64
  DENTAGE        40 to 49          3144       1223        1921         61.10
  DENTAGE        50 or older       2353        897        1456         61.88

Overall                           93002      32293       60709         65.28


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

               Statistic        df       Significance

 Log Rank           7.17        3           .0665


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

               Statistic        df       Significance

 Log Rank          13.60        3           .0035


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

               Statistic        df       Significance

 Log Rank           7.50        3           .0574





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

               Statistic        df       Significance

 Log Rank           1.74        3           .6287


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

               Statistic        df       Significance

 Log Rank          16.04        3           .0011


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

               Statistic        df       Significance

 Log Rank           6.92        3           .0745




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

 Factor         1.00     2.00     3.00

     2.00       3.58
             ( .0586)

     3.00       4.90      .31
             ( .0268) ( .5786)

     4.00       5.23      .80      .20
             ( .0223) ( .3716) ( .6587)


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

 Factor         1.00     2.00     3.00

     2.00       4.72
             ( .0297)

     3.00       5.97      .29
             ( .0146) ( .5887)

     4.00        .75     7.45     9.05
             ( .3858) ( .0064) ( .0026)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00       1.73
             ( .1883)

     3.00        .52     5.52
             ( .4692) ( .0188)

     4.00        .70     4.75      .05
             ( .4041) ( .0293) ( .8310)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00       1.02
             ( .3119)

     3.00       1.59      .14
             ( .2070) ( .7116)

     4.00        .37      .10      .36
             ( .5439) ( .7510) ( .5500)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00       2.93
             ( .0871)

     3.00       1.25    12.69
             ( .2645) ( .0004)

     4.00        .90    10.20      .02
             ( .3428) ( .0014) ( .8896)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00        .55
             ( .4567)

     3.00       4.97     3.53
             ( .0258) ( .0602)

     4.00       3.02     1.70      .19
             ( .0821) ( .1916) ( .6617)





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 27-JUN-2003 15:01:32
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 202529
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 0:00:09.14




 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                 .            .            .            .            .        3573.00      2954.00      2459.00      1994.00
 Standard Error        .            .            .            .            .            .          66.18        50.83        43.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1555.00      1226.00       919.00       609.00       305.00
 Standard Error      32.62        23.89        19.82        15.75          .



 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                 .            .            .            .            .        3575.00      2880.00      2360.00      1901.00
 Standard Error        .            .            .            .            .            .          58.31        41.63        33.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1488.00      1132.00       852.00       577.00       293.00
 Standard Error      26.38        19.29        14.49        11.74          .



 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                 .            .            .            .            .        3372.00      2756.00      2222.00      1798.00
 Standard Error        .            .            .            .            .            .          62.26        46.72        35.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1420.00      1098.00       799.00       535.00       280.00
 Standard Error      27.99        22.01        17.14        12.81          .



 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                 .            .            .            .            .        3310.00      2701.00      2195.00      1732.00
 Standard Error        .            .            .            .            .            .          76.31        59.62        45.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1376.00      1061.00       793.00       546.00       316.00
 Standard Error      33.57        25.94        19.67        14.73          .



 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                 .            .            .            .        3692.00      3131.00      2552.00      2119.00      1707.00
 Standard Error        .            .            .            .            .          79.12        62.62        47.33        39.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1344.00      1008.00       721.00       447.00       211.00
 Standard Error      31.73        25.19        19.52        14.28          .



 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                 .            .            .            .        3733.00      3142.00      2591.00      2093.00      1627.00
 Standard Error        .            .            .            .            .          61.14        48.66        39.81        31.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1264.00       933.00       653.00       413.00       198.00
 Standard Error      23.52        18.42        13.56         9.65          .



 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                 .            .            .            .        3639.00      2919.00      2347.00      1887.00      1488.00
 Standard Error        .            .            .            .            .          75.59        53.91        40.92        32.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1140.00       854.00       599.00       387.00       190.00
 Standard Error      25.08        19.04        14.28        10.17          .



 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                 .            .            .            .        3336.00      2682.00      2131.00      1759.00      1379.00
 Standard Error        .            .            .            .            .          88.10        61.49        45.85        38.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1061.00       804.00       574.00       361.00       187.00
 Standard Error      29.25        22.02        17.44        12.32          .



 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                 .            .            .            .        3579.00      2990.00      2462.00      2000.00      1583.00
 Standard Error        .            .            .            .            .         105.03        82.87        67.51        55.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1203.00       931.00       665.00       396.00       183.00
 Standard Error      41.05        30.02        25.85        18.77          .



 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                 .            .            .            .        3467.00      2885.00      2265.00      1833.00      1427.00
 Standard Error        .            .            .            .            .          75.25        58.97        42.77        35.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1082.00       776.00       560.00       360.00       181.00
 Standard Error      27.58        19.92        13.78        10.24          .



 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                 .            .            .        3607.00      2932.00      2329.00      1869.00      1469.00      1183.00
 Standard Error        .            .            .            .          85.04        64.02        47.79        35.56        27.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              890.00       657.00       476.00       306.00       165.00
 Standard Error      23.23        16.53        12.22         8.98          .



 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                 .            .            .        3333.00      2708.00      2203.00      1729.00      1386.00      1085.00
 Standard Error        .            .            .            .          89.92        71.05        55.26        40.62        32.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              825.00       627.00       452.00       287.00       147.00
 Standard Error      24.66        18.10        14.35        10.64          .



 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                 .            .            .            .        3218.00      2642.00      2128.00      1666.00      1325.00
 Standard Error        .            .            .            .            .         127.64       105.10        78.96        58.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1017.00       774.00       527.00       333.00       148.00
 Standard Error      45.41        35.77        27.97        19.66          .



 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                 .            .            .        3941.00      3361.00      2693.00      2163.00      1662.00      1300.00
 Standard Error        .            .            .            .         107.77        96.39        74.79        56.86        42.85

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              955.00       703.00       496.00       312.00       169.00
 Standard Error      33.01        22.76        16.90        11.61          .



 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                 .            .            .        3209.00      2520.00      2148.00      1770.00      1399.00      1090.00
 Standard Error        .            .            .            .          89.36        58.49        53.87        45.31        34.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              840.00       648.00       445.00       287.00       147.00
 Standard Error      25.24        20.24        16.10        11.00          .



 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                 .            .            .        3241.00      2771.00      2201.00      1741.00      1385.00      1116.00
 Standard Error        .            .            .            .          98.56        89.10        64.23        46.31        37.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              836.00       628.00       435.00       272.00       157.00
 Standard Error      30.66        22.75        17.63        11.37          .



 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                 .            .            .            .        2987.00      2395.00      1900.00      1479.00      1183.00
 Standard Error        .            .            .            .            .         179.62       143.74       103.07        75.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              911.00       700.00       461.00       318.00       157.00
 Standard Error      59.62        48.94        36.06        23.95          .



 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                 .            .            .        3564.00      2759.00      2278.00      1811.00      1426.00      1112.00
 Standard Error        .            .            .            .         148.46        98.64        82.35        62.43        49.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              830.00       623.00       451.00       273.00       144.00
 Standard Error      37.39        26.14        21.07        15.36          .



 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                 .            .        3571.00      2841.00      2339.00      1888.00      1532.00      1264.00       985.00
 Standard Error        .            .            .         143.92       105.41        82.50        60.00        49.71        43.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              750.00       573.00       395.00       223.00       114.00
 Standard Error      31.80        24.82        21.33        14.20          .



 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                 .            .        3878.00      2991.00      2312.00      1843.00      1519.00      1237.00       965.00
 Standard Error        .            .            .         206.22       139.07        89.40        64.41        54.02        46.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              727.00       558.00       391.00       258.00       155.00
 Standard Error      34.54        25.84        20.14        13.19          .



 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                 .            .            .            .            .        2571.00      1820.00      1454.00      1110.00
 Standard Error        .            .            .            .            .            .         290.54       164.55       135.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              799.00       657.00       431.00       279.00       147.00
 Standard Error      89.64        64.99        57.00        36.08          .



 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                 .            .            .            .        3128.00      2514.00      1772.00      1302.00      1013.00
 Standard Error        .            .            .            .            .         224.23       178.30       105.48        63.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              808.00       596.00       386.00       245.00       144.00
 Standard Error      48.28        44.39        32.41        18.67          .



 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                 .            .            .        2659.00      2101.00      1814.00      1433.00      1155.00       939.00
 Standard Error        .            .            .            .         139.85        97.86        89.08        62.44        51.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              715.00       511.00       369.00       224.00       139.00
 Standard Error      45.49        33.94        24.10        16.18          .



 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                 .            .            .        3140.00      2234.00      1834.00      1439.00      1100.00       826.00
 Standard Error        .            .            .            .         224.02       123.84       105.90        82.91        59.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              622.00       496.00       383.00       240.00       140.00
 Standard Error      37.79        25.48        23.25        18.32          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29           66101      16583       49518         74.91
  DENTAGE        under 30         15658       3770       11888         75.92
  DENTAGE        30 to 39         23060       5731       17329         75.15
  DENTAGE        40 to 49         16590       4335       12255         73.87
  DENTAGE        50 or older      10793       2747        8046         74.55

PATAGEG2       30 to 39           57729      16745       40984         70.99
  DENTAGE        under 30         12215       3353        8862         72.55
  DENTAGE        30 to 39         21113       6019       15094         71.49
  DENTAGE        40 to 49         15233       4557       10676         70.08
  DENTAGE        50 or older       9168       2816        6352         69.28

PATAGEG2       40 to 49           37907      12439       25468         67.19
  DENTAGE        under 30          6210       1811        4399         70.84
  DENTAGE        30 to 39         12746       3961        8785         68.92
  DENTAGE        40 to 49         11287       3949        7338         65.01
  DENTAGE        50 or older       7664       2718        4946         64.54

PATAGEG2       50 to 59           23257       7816       15441         66.39
  DENTAGE        under 30          3484       1087        2397         68.80
  DENTAGE        30 to 39          7388       2362        5026         68.03
  DENTAGE        40 to 49          6831       2419        4412         64.59
  DENTAGE        50 or older       5554       1948        3606         64.93

PATAGEG2       60 to 69           11832       4303        7529         63.63
  DENTAGE        under 30          1518        502        1016         66.93
  DENTAGE        30 to 39          3732       1311        2421         64.87
  DENTAGE        40 to 49          3600       1376        2224         61.78
  DENTAGE        50 or older       2982       1114        1868         62.64

PATAGEG2       70 or older         5703       1947        3756         65.86
  DENTAGE        under 30           596        181         415         69.63
  DENTAGE        30 to 39          1607        521        1086         67.58
  DENTAGE        40 to 49          1873        670        1203         64.23
  DENTAGE        50 or older       1627        575        1052         64.66

Overall                          202529      59833      142696         70.46


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

               Statistic        df       Significance

 Log Rank          19.24        3           .0002


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

               Statistic        df       Significance

 Log Rank          50.41        3           .0000


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

               Statistic        df       Significance

 Log Rank         117.98        3           .0000





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

               Statistic        df       Significance

 Log Rank          34.21        3           .0000


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

               Statistic        df       Significance

 Log Rank          18.64        3           .0003


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

               Statistic        df       Significance

 Log Rank          12.01        3           .0074




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

 Factor         1.00     2.00     3.00

     2.00       1.73
             ( .1879)

     3.00      11.26     5.50
             ( .0008) ( .0190)

     4.00      13.74     7.67      .49
             ( .0002) ( .0056) ( .4857)


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

 Factor         1.00     2.00     3.00

     2.00       1.17
             ( .2797)

     3.00      16.46    12.16
             ( .0000) ( .0005)

     4.00      37.41    33.11     6.73
             ( .0000) ( .0000) ( .0095)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00       5.89
             ( .0153)

     3.00      56.12    40.94
             ( .0000) ( .0000)

     4.00      76.65    61.67     4.26
             ( .0000) ( .0000) ( .0390)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00        .05
             ( .8248)

     3.00      15.08    21.29
             ( .0001) ( .0000)

     4.00      12.63    17.07      .05
             ( .0004) ( .0000) ( .8253)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00       1.30
             ( .2534)

     3.00      11.32     8.94
             ( .0008) ( .0028)

     4.00       9.57     6.84      .04
             ( .0020) ( .0089) ( .8359)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00        .60
             ( .4403)

     3.00       6.34     5.93
             ( .0118) ( .0149)

     4.00       5.94     5.39      .00
             ( .0148) ( .0202) ( .9915)





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 27-JUN-2003 15:01:41
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 19071
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 0:00:04.24




 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                 .        3455.00      3118.00      2604.00      2199.00      1903.00      1456.00      1288.00      1035.00
 Standard Error        .            .         216.28       217.73       154.64       154.62       122.04        77.93        83.59

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              803.00       612.00       425.00       302.00       176.00
 Standard Error      66.34        55.30        38.25        24.70          .



 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                 .            .        3284.00      2828.00      2325.00      1926.00      1583.00      1286.00      1043.00
 Standard Error        .            .            .         203.73       172.55       135.58       113.16        88.02        66.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              826.00       629.00       462.00       338.00       161.00
 Standard Error      56.68        44.27        30.31        26.00          .



 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                 .            .            .        2859.00      2338.00      1951.00      1434.00      1182.00       914.00
 Standard Error        .            .            .            .         239.30       209.39       172.20       107.42        87.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              714.00       553.00       387.00       251.00       105.00
 Standard Error      64.90        53.04        42.54        32.45          .



 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             3843.00      3244.00      3063.00      1923.00      1659.00      1449.00      1194.00       874.00       751.00
 Standard Error        .         440.25       426.78       438.38       168.57       144.87       156.00       124.48        64.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              634.00       526.00       386.00       244.00       100.00
 Standard Error      53.29        54.20        58.82        46.07          .



 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                 .            .        3148.00      2604.00      2072.00      1705.00      1325.00      1002.00       772.00
 Standard Error        .            .            .         231.53       182.67       142.95       120.11        89.67        61.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              601.00       438.00       281.00       178.00        97.00
 Standard Error      46.39        40.50        28.36        17.58          .



 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                 .        3369.00      2850.00      2394.00      1987.00      1550.00      1242.00      1037.00       839.00
 Standard Error        .            .         186.75       152.07       139.00       112.58        73.16        53.62        48.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              659.00       486.00       322.00       193.00        91.00
 Standard Error      41.03        35.01        26.84        17.57          .



 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                 .        3021.00      2449.00      1964.00      1785.00      1432.00      1099.00       853.00       619.00
 Standard Error        .         292.72       235.25       159.69       122.01       131.58       109.03        80.44        54.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              511.00       378.00       273.00       180.00        91.00
 Standard Error      36.63        32.73        24.01        18.34          .



 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                 .            .        2940.00      2089.00      1576.00      1432.00      1073.00       812.00       674.00
 Standard Error        .            .            .         370.42       179.22       130.89       148.06        92.36        56.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              560.00       438.00       360.00       212.00       125.00
 Standard Error      49.61        37.30        35.85        35.00          .



 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                 .        3073.00      2708.00      2069.00      1682.00      1358.00      1112.00       917.00       762.00
 Standard Error        .            .         254.45       223.54       155.15       119.96        84.90        63.51        51.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              621.00       484.00       310.00       189.00        85.00
 Standard Error      44.72        46.07        37.47        23.99          .



 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                 .        3195.00      2590.00      2153.00      1755.00      1507.00      1190.00       966.00       762.00
 Standard Error        .         260.76       200.58       146.21       109.30        89.26        79.59        60.15        50.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              580.00       434.00       323.00       198.00       112.00
 Standard Error      39.89        28.52        22.93        17.18          .



 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                 .        3133.00      2380.00      1833.00      1469.00      1160.00       915.00       716.00       567.00
 Standard Error        .         264.14       242.93       165.40       117.54        93.83        71.39        53.35        44.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              406.00       287.00       196.00       140.00        69.00
 Standard Error      38.04        25.38        16.41        11.59          .



 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             3283.00      2147.00      1545.00      1309.00      1108.00       874.00       729.00       602.00       522.00
 Standard Error        .         303.64       188.46        99.08        89.52        79.77        55.02        42.22        39.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              391.00       297.00       231.00       156.00        88.00
 Standard Error      38.44        25.71        19.79        16.22          .



 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                 .        3379.00      2487.00      1971.00      1715.00      1315.00       987.00       772.00       567.00
 Standard Error        .            .         330.76       180.27       145.83       158.59       111.00        81.81        70.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              384.00       308.00       210.00       138.00        64.00
 Standard Error      43.89        27.41        23.37        16.63          .



 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                 .        3120.00      2797.00      2191.00      1768.00      1513.00      1161.00       856.00       707.00
 Standard Error        .         224.90       189.99       191.02       118.12       103.18       102.44        66.64        43.27

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              543.00       407.00       280.00       188.00        90.00
 Standard Error      38.25        30.30        22.96        16.19          .



 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                 .        3491.00      2852.00      2359.00      1714.00      1343.00      1118.00       859.00       697.00
 Standard Error        .            .         307.85       258.52       216.02       125.57        94.77        73.77        52.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              553.00       405.00       293.00       189.00       101.00
 Standard Error      44.83        36.18        25.40        19.56          .



 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             3286.00      2256.00      1840.00      1598.00      1324.00      1140.00       881.00       692.00       539.00
 Standard Error        .         259.70       170.32       122.70       110.45        96.94        92.86        68.24        53.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              408.00       355.00       214.00       170.00        75.00
 Standard Error      32.44        32.67        25.70        16.23          .



 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                 .        3182.00      2965.00      2349.00      1891.00      1478.00      1127.00       899.00       673.00
 Standard Error        .            .         299.04       318.82       255.49       201.28       147.08       106.59        89.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              491.00       362.00       233.00       162.00        70.00
 Standard Error      62.66        47.48        33.34        23.10          .



 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                 .        3028.00      2443.00      1942.00      1537.00      1270.00      1028.00       865.00       723.00
 Standard Error        .            .         254.71       194.69       136.46       101.77        71.81        54.19        52.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              543.00       374.00       261.00       182.00        67.00
 Standard Error      50.79        37.51        22.27        19.22          .



 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                 .        2422.00      2121.00      1727.00      1390.00      1093.00       899.00       682.00       571.00
 Standard Error        .         316.35       179.28       176.02       146.08       114.07        89.51        68.38        41.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              469.00       346.00       236.00       181.00        98.00
 Standard Error      40.48        38.98        23.80        17.30          .



 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                 .        3312.00      2338.00      1791.00      1571.00      1374.00      1070.00       818.00       641.00
 Standard Error        .            .         381.66       230.83       156.09       133.00       142.43       106.20        71.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              511.00       407.00       310.00       196.00       100.00
 Standard Error      48.98        41.07        36.59        31.31          .



 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                 .            .            .        2023.00      1707.00      1492.00      1356.00       861.00       644.00
 Standard Error        .            .            .            .         176.14       137.03       200.66       204.52        92.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              539.00       378.00       247.00       182.00        56.00
 Standard Error      65.52        68.42        39.70        31.66          .



 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                 .        3153.00      2772.00      2243.00      1892.00      1526.00      1229.00       909.00       731.00
 Standard Error        .            .         344.44       261.16       197.20       177.65       161.02       111.69        71.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       459.00       351.00       189.00       115.00
 Standard Error      53.95        41.55        40.98        30.34          .



 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                 .        2804.00      2179.00      1760.00      1310.00      1026.00       869.00       736.00       528.00
 Standard Error        .         390.22       301.42       242.59       191.79       112.14        70.36        75.41        74.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              380.00       322.00       214.00       175.00        83.00
 Standard Error      40.85        30.90        22.07        17.56          .



 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                 .        3152.00      3152.00      2423.00      1890.00      1471.00      1225.00       986.00       671.00
 Standard Error        .         388.53       578.82       344.97       315.53       204.47       153.62       157.77       107.52

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              555.00       453.00       284.00       192.00        91.00
 Standard Error      52.73        59.90        48.73        29.35          .



 Survival Analysis for TIME     Time to reintervention

                                  Total     Number      Number       Percent
                                            Events     Censored     Censored

PATAGEG2       18 to 29            3241       1178        2063         63.65
  DENTAGE        under 30           924        345         579         62.66
  DENTAGE        30 to 39          1264        441         823         65.11
  DENTAGE        40 to 49           685        245         440         64.23
  DENTAGE        50 or older        368        147         221         60.05

PATAGEG2       30 to 39            4033       1616        2417         59.93
  DENTAGE        under 30          1052        408         644         61.22
  DENTAGE        30 to 39          1580        632         948         60.00
  DENTAGE        40 to 49           913        377         536         58.71
  DENTAGE        50 or older        488        199         289         59.22

PATAGEG2       40 to 49            3989       1791        2198         55.10
  DENTAGE        under 30           808        345         463         57.30
  DENTAGE        30 to 39          1405        599         806         57.37
  DENTAGE        40 to 49          1104        510         594         53.80
  DENTAGE        50 or older        672        337         335         49.85

PATAGEG2       50 to 59            3544       1499        2045         57.70
  DENTAGE        under 30           704        310         394         55.97
  DENTAGE        30 to 39          1255        526         729         58.09
  DENTAGE        40 to 49           921        363         558         60.59
  DENTAGE        50 or older        664        300         364         54.82

PATAGEG2       60 to 69            2449       1074        1375         56.15
  DENTAGE        under 30           458        200         258         56.33
  DENTAGE        30 to 39           942        401         541         57.43
  DENTAGE        40 to 49           612        288         324         52.94
  DENTAGE        50 or older        437        185         252         57.67

PATAGEG2       70 or older         1815        706        1109         61.10
  DENTAGE        under 30           317        121         196         61.83
  DENTAGE        30 to 39           576        212         364         63.19
  DENTAGE        40 to 49           535        232         303         56.64
  DENTAGE        50 or older        387        141         246         63.57

Overall                           19071       7864       11207         58.76


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

               Statistic        df       Significance

 Log Rank           5.36        3           .1475


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

               Statistic        df       Significance

 Log Rank           5.08        3           .1664


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

               Statistic        df       Significance

 Log Rank          26.73        3           .0000





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

               Statistic        df       Significance

 Log Rank          10.00        3           .0186


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

               Statistic        df       Significance

 Log Rank           3.48        3           .3239


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

               Statistic        df       Significance

 Log Rank           7.07        3           .0697




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

 Factor         1.00     2.00     3.00

     2.00        .36
             ( .5508)

     3.00        .01      .22
             ( .9307) ( .6389)

     4.00       3.11     5.45     2.80
             ( .0779) ( .0195) ( .0943)


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

 Factor         1.00     2.00     3.00

     2.00        .10
             ( .7471)

     3.00       4.05     3.82
             ( .0442) ( .0506)

     4.00        .54      .33      .80
             ( .4620) ( .5674) ( .3717)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00        .02
             ( .8967)

     3.00       4.40     6.78
             ( .0360) ( .0092)

     4.00      16.09    22.94     4.80
             ( .0001) ( .0000) ( .0285)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00       1.63
             ( .2023)

     3.00       1.64      .00
             ( .2009) ( .9570)

     4.00       1.83     8.38     7.29
             ( .1765) ( .0038) ( .0069)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00        .36
             ( .5490)

     3.00       3.00     1.95
             ( .0831) ( .1621)

     4.00        .25      .00     1.32
             ( .6139) ( .9957) ( .2514)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00        .17
             ( .6805)

     3.00       2.47     5.70
             ( .1161) ( .0170)

     4.00        .06      .04     3.98
             ( .8064) ( .8456) ( .0460)





* 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 27-JUN-2003 15:01:46
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 93002
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 0:00:06.03




 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                 .            .            .            .            .            .            .            .        3422.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2693.00      2046.00      1355.00       851.00       379.00
 Standard Error     145.40       117.51        89.94        57.75          .



 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                 .            .            .        3788.00      3221.00      2688.00      2266.00      1936.00      1580.00
 Standard Error        .            .            .            .         103.42        80.88        57.85        48.44        46.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1217.00       896.00       616.00       388.00       196.00
 Standard Error      39.91        31.39        23.08        15.71          .



 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                 .        2898.00      2369.00      2016.00      1713.00      1417.00      1182.00      1003.00       804.00
 Standard Error        .         118.28        86.10        60.51        52.25        44.39        32.77        27.92        23.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              668.00       502.00       350.00       211.00       118.00
 Standard Error      19.22        18.20        14.36         9.66          .



 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                 .            .            .            .            .            .            .            .        3530.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2802.00      2270.00      1582.00      1015.00       438.00
 Standard Error     139.63       107.48        94.64        66.52          .



 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                 .            .            .            .        3522.00      3007.00      2451.00      1996.00      1568.00
 Standard Error        .            .            .            .            .          82.73        69.42        55.32        44.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1219.00       888.00       639.00       391.00       186.00
 Standard Error      35.20        26.77        19.89        14.85          .



 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                 .        2974.00      2370.00      1946.00      1631.00      1342.00      1115.00       915.00       749.00
 Standard Error        .         153.83        95.43        62.95        49.24        39.79        31.27        25.28        20.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              593.00       434.00       309.00       191.00       112.00
 Standard Error      18.76        15.35        11.55         7.73          .



 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                 .            .            .            .            .            .        3905.00      3450.00      2915.00
 Standard Error        .            .            .            .            .            .            .         118.68       134.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2330.00      1721.00      1288.00       791.00       393.00
 Standard Error     124.61        91.44        70.42        53.60          .



 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                 .            .            .        3417.00      2841.00      2291.00      1904.00      1541.00      1262.00
 Standard Error        .            .            .            .          84.71        63.81        47.60        37.96        32.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              955.00       694.00       514.00       325.00       182.00
 Standard Error      28.57        19.99        14.58        10.83          .



 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                 .        2568.00      2223.00      1843.00      1494.00      1209.00       995.00       800.00       630.00
 Standard Error        .         108.26        65.15        62.28        51.70        38.50        30.42        26.00        19.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              504.00       385.00       279.00       189.00        94.00
 Standard Error      14.83        12.81         9.76         7.77          .



 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                 .            .            .            .            .            .            .        3139.00      2523.00
 Standard Error        .            .            .            .            .            .            .            .         142.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2114.00      1544.00      1071.00       607.00       311.00
 Standard Error     114.63       102.62        77.43        50.65          .



 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                 .            .        3511.00      2988.00      2482.00      2078.00      1708.00      1336.00      1085.00
 Standard Error        .            .            .          84.39        66.42        51.98        46.20        35.93        25.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              855.00       657.00       463.00       301.00       169.00
 Standard Error      20.94        17.41        13.68         9.44          .



 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             3240.00      2072.00      1708.00      1455.00      1231.00      1036.00       867.00       715.00       588.00
 Standard Error        .          74.64        54.00        40.80        34.29        28.76        24.33        20.24        16.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              466.00       371.00       261.00       183.00       102.00
 Standard Error      13.76        11.90         9.67         6.83          .



 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                 .            .            .            .            .        3849.00      3458.00      2769.00      2199.00
 Standard Error        .            .            .            .            .            .         191.76       195.26       150.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1680.00      1161.00       828.00       535.00       253.00
 Standard Error     126.38        90.55        57.56        42.97          .



 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                 .        3443.00      2808.00      2310.00      1933.00      1618.00      1336.00      1063.00       854.00
 Standard Error        .            .         101.07        70.99        52.34        42.56        37.09        30.19        23.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              662.00       510.00       374.00       233.00       140.00
 Standard Error      18.79        14.22        12.00         8.45          .



 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             2550.00      1598.00      1345.00      1123.00       947.00       810.00       680.00       568.00       461.00
 Standard Error     105.39        64.40        44.79        36.67        27.92        23.26        20.21        17.65        14.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              371.00       287.00       208.00       168.00        91.00
 Standard Error      12.48        10.65         6.96         5.71          .



 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                 .            .            .            .            .            .        2927.00      2324.00      1852.00
 Standard Error        .            .            .            .            .            .            .         187.46       146.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1390.00       999.00       720.00       478.00       221.00
 Standard Error     114.58        80.78        53.52        40.30          .



 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                 .        3107.00      2410.00      1970.00      1673.00      1402.00      1162.00       959.00       799.00
 Standard Error        .            .         120.57        71.18        50.44        42.51        34.18        26.41        22.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              627.00       482.00       358.00       210.00       140.00
 Standard Error      20.01        15.27        13.57         9.02          .



 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             2332.00      1527.00      1234.00      1042.00       833.00       714.00       600.00       510.00       408.00
 Standard Error     131.05        66.84        55.24        43.38        33.69        23.82        19.69        17.98        16.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              322.00       240.00       188.00       142.00        70.00
 Standard Error      13.84        10.08         6.61         6.60          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29             14912       4897       10015         67.16
  FEESGRP        under £30           2896        530        2366         81.70
  FEESGRP        £30 to £79.99       6695       2149        4546         67.90
  FEESGRP        £80 or more         5321       2218        3103         58.32

PATAGEG2       30 to 39             17773       5638       12135         68.28
  FEESGRP        under £30           3212        514        2698         84.00
  FEESGRP        £30 to £79.99       8731       2630        6101         69.88
  FEESGRP        £80 or more         5830       2494        3336         57.22

PATAGEG2       40 to 49             16982       6107       10875         64.04
  FEESGRP        under £30           2980        582        2398         80.47
  FEESGRP        £30 to £79.99       8767       3071        5696         64.97
  FEESGRP        £80 or more         5235       2454        2781         53.12

PATAGEG2       50 to 59             16491       6196       10295         62.43
  FEESGRP        under £30           2374        464        1910         80.45
  FEESGRP        £30 to £79.99       9098       3261        5837         64.16
  FEESGRP        £80 or more         5019       2471        2548         50.77

PATAGEG2       60 to 69             12787       5452        7335         57.36
  FEESGRP        under £30           1779        421        1358         76.34
  FEESGRP        £30 to £79.99       7119       2903        4216         59.22
  FEESGRP        £80 or more         3889       2128        1761         45.28

PATAGEG2       70 or older           9927       4003        5924         59.68
  FEESGRP        under £30           1503        338        1165         77.51
  FEESGRP        £30 to £79.99       5502       2135        3367         61.20
  FEESGRP        £80 or more         2922       1530        1392         47.64

Overall                             88872      32293       56579         63.66


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

               Statistic        df       Significance

 Log Rank         831.35        2           .0000


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

               Statistic        df       Significance

 Log Rank        1053.08        2           .0000


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

               Statistic        df       Significance

 Log Rank         865.34        2           .0000


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

               Statistic        df       Significance

 Log Rank         846.96        2           .0000



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

               Statistic        df       Significance

 Log Rank         754.18        2           .0000


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

               Statistic        df       Significance

 Log Rank         574.78        2           .0000




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

 Factor         1.00     2.00

     2.00     222.90
             ( .0000)

     3.00     733.86   329.57
             ( .0000) ( .0000)


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

 Factor         1.00     2.00

     2.00     249.76
             ( .0000)

     3.00     877.49   482.68
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00     265.33
             ( .0000)

     3.00     773.15   349.46
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00     213.66
             ( .0000)

     3.00     680.00   425.07
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00     206.33
             ( .0000)

     3.00     622.59   362.02
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00     160.27
             ( .0000)

     3.00     477.05   269.09
             ( .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 27-JUN-2003 15:01:52
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 202529
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 0:00:09.43




 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                 .            .            .            .            .            .            .            .        3469.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2767.00      2195.00      1599.00      1062.00       554.00
 Standard Error      52.25        40.35        32.55        23.95          .



 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                 .            .            .        3913.00      3258.00      2736.00      2254.00      1869.00      1512.00
 Standard Error        .            .            .            .          53.97        41.23        32.47        25.63        20.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1225.00       959.00       713.00       479.00       246.00
 Standard Error      15.98        13.31        10.86         8.68          .



 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                 .        3693.00      3036.00      2530.00      2051.00      1735.00      1433.00      1203.00      1009.00
 Standard Error        .            .          88.93        68.62        51.36        37.11        30.26        22.46        19.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              814.00       651.00       476.00       306.00       164.00
 Standard Error      15.90        13.34        11.66         8.66          .



 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                 .            .            .            .            .            .            .        3575.00      2986.00
 Standard Error        .            .            .            .            .            .            .            .          65.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2369.00      1777.00      1260.00       800.00       400.00
 Standard Error      54.95        42.93        31.71        22.30          .



 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                 .            .            .        3778.00      3167.00      2601.00      2128.00      1735.00      1379.00
 Standard Error        .            .            .            .          52.25        40.49        30.77        24.54        20.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1071.00       796.00       562.00       364.00       182.00
 Standard Error      16.16        12.69         9.41         6.76          .



 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                 .        3569.00      3041.00      2491.00      2022.00      1689.00      1391.00      1147.00       912.00
 Standard Error        .            .          84.06        71.80        51.84        38.04        30.67        25.23        21.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              710.00       532.00       373.00       234.00       127.00
 Standard Error      17.04        13.62        10.53         7.25          .



 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                 .            .            .            .            .            .            .        3443.00      2734.00
 Standard Error        .            .            .            .            .            .            .            .          86.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2118.00      1520.00      1053.00       655.00       338.00
 Standard Error      67.74        51.00        35.34        23.59          .



 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                 .            .        3975.00      3455.00      2869.00      2287.00      1867.00      1483.00      1163.00
 Standard Error        .            .            .          63.25        56.63        44.03        32.81        26.76        20.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       672.00       480.00       303.00       160.00
 Standard Error      15.98        12.22         9.52         6.84          .



 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                 .        2982.00      2565.00      2030.00      1673.00      1390.00      1135.00       900.00       723.00
 Standard Error        .         105.98        77.05        68.49        46.39        37.39        32.45        25.78        19.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              575.00       423.00       298.00       185.00       100.00
 Standard Error      16.32        13.58        10.33         7.22          .



 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                 .            .            .            .            .            .            .        3216.00      2520.00
 Standard Error        .            .            .            .            .            .            .            .         117.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1926.00      1383.00       960.00       593.00       300.00
 Standard Error      88.51        65.09        44.83        30.05          .



 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                 .            .            .        3446.00      2793.00      2262.00      1840.00      1440.00      1131.00
 Standard Error        .            .            .            .          71.63        52.57        41.66        33.49        25.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              869.00       658.00       461.00       285.00       158.00
 Standard Error      19.05        14.87        11.85         8.00          .



 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                 .        2762.00      2303.00      1873.00      1579.00      1303.00      1054.00       842.00       674.00
 Standard Error        .         149.23        89.02        67.41        51.38        45.11        37.34        29.20        23.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              525.00       385.00       270.00       181.00        85.00
 Standard Error      19.36        15.66        11.12         8.37          .



 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                 .            .            .            .            .            .            .        3238.00      2339.00
 Standard Error        .            .            .            .            .            .            .            .         174.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1811.00      1331.00       841.00       497.00       252.00
 Standard Error     110.63        91.53        66.48        38.42          .



 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                 .            .        3740.00      2862.00      2410.00      1988.00      1596.00      1307.00      1030.00
 Standard Error        .            .            .         114.56        70.11        59.54        47.21        36.58        31.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              792.00       588.00       414.00       252.00       137.00
 Standard Error      24.60        19.16        14.86        10.15          .



 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                 .        2489.00      2070.00      1672.00      1299.00      1110.00       897.00       734.00       617.00
 Standard Error        .         148.92       106.37        94.13        66.42        45.23        40.81        28.63        22.82

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              502.00       380.00       258.00       175.00        93.00
 Standard Error      21.20        20.00        14.73        10.13          .



 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                 .            .            .            .            .            .            .        3141.00      2514.00
 Standard Error        .            .            .            .            .            .            .            .         252.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1878.00      1207.00       791.00       546.00       229.00
 Standard Error     213.50       152.86        81.58        55.26          .



 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                 .            .            .        2684.00      2111.00      1756.00      1395.00      1130.00       887.00
 Standard Error        .            .            .            .         108.61        76.29        63.91        48.04        40.91

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              661.00       496.00       366.00       231.00       146.00
 Standard Error      30.96        21.58        16.90        11.75          .



 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                 .        3691.00      2812.00      2022.00      1475.00      1204.00       966.00       783.00       618.00
 Standard Error        .            .         327.85       235.46       140.71        82.69        66.91        51.61        45.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              456.00       359.00       243.00       169.00        98.00
 Standard Error      33.65        24.91        19.31        12.45          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29             59597      16583       43014         72.17
  FEESGRP        under £30          20028       3565       16463         82.20
  FEESGRP        £30 to £79.99      27431       8822       18609         67.84
  FEESGRP        £80 or more        12138       4196        7942         65.43

PATAGEG2       30 to 39             54925      16745       38180         69.51
  FEESGRP        under £30          15481       2947       12534         80.96
  FEESGRP        £30 to £79.99      28837       9704       19133         66.35
  FEESGRP        £80 or more        10607       4094        6513         61.40

PATAGEG2       40 to 49             36627      12439       24188         66.04
  FEESGRP        under £30           9360       1951        7409         79.16
  FEESGRP        £30 to £79.99      20338       7381       12957         63.71
  FEESGRP        £80 or more         6929       3107        3822         55.16

PATAGEG2       50 to 59             22622       7816       14806         65.45
  FEESGRP        under £30           4833       1010        3823         79.10
  FEESGRP        £30 to £79.99      13311       4773        8538         64.14
  FEESGRP        £80 or more         4478       2033        2445         54.60

PATAGEG2       60 to 69             11550       4303        7247         62.74
  FEESGRP        under £30           2286        510        1776         77.69
  FEESGRP        £30 to £79.99       6815       2613        4202         61.66
  FEESGRP        £80 or more         2449       1180        1269         51.82

PATAGEG2       70 or older           5535       1947        3588         64.82
  FEESGRP        under £30           1038        211         827         79.67
  FEESGRP        £30 to £79.99       3287       1221        2066         62.85
  FEESGRP        £80 or more         1210        515         695         57.44

Overall                            190856      59833      131023         68.65


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

               Statistic        df       Significance

 Log Rank        2869.12        2           .0000


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

               Statistic        df       Significance

 Log Rank        1849.63        2           .0000


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

               Statistic        df       Significance

 Log Rank        1382.76        2           .0000


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

               Statistic        df       Significance

 Log Rank         785.18        2           .0000



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

               Statistic        df       Significance

 Log Rank         433.34        2           .0000


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

               Statistic        df       Significance

 Log Rank         152.77        2           .0000




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

 Factor         1.00     2.00

     2.00    1616.33
             ( .0000)

     3.00    2827.43   420.05
             ( .0000) ( .0000)


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

 Factor         1.00     2.00

     2.00    1030.85
             ( .0000)

     3.00    1881.74   338.07
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00     702.72
             ( .0000)

     3.00    1423.78   325.36
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00     333.10
             ( .0000)

     3.00     796.50   258.90
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00     187.38
             ( .0000)

     3.00     429.61   142.57
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00     103.95
             ( .0000)

     3.00     152.24    21.21
             ( .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 27-JUN-2003 15:02:01
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 19071
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 0:00:04.05




 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                 .            .            .            .        3843.00      3206.00      2764.00      2413.00      2057.00
 Standard Error        .            .            .            .            .         265.86       205.41       166.09       133.39

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1734.00      1302.00       876.00       550.00       249.00
 Standard Error     131.58       136.05       100.53        69.94          .



 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                 .        3272.00      2841.00      2286.00      1834.00      1515.00      1259.00      1019.00       837.00
 Standard Error        .            .         185.89       164.19       127.12        89.20        74.22        58.83        45.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              672.00       518.00       373.00       233.00       109.00
 Standard Error      40.04        32.93        27.48        21.66          .



 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             3174.00      2072.00      1786.00      1420.00      1161.00      1036.00       846.00       722.00       600.00
 Standard Error        .         247.61       149.10       137.55        83.76        66.55        63.42        45.87        42.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              495.00       378.00       294.00       195.00        93.00
 Standard Error      33.96        29.33        24.55        22.03          .



 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                 .            .            .            .        3505.00      2920.00      2230.00      1843.00      1279.00
 Standard Error        .            .            .            .            .         274.11       241.59       184.55       165.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              873.00       673.00       505.00       297.00       146.00
 Standard Error      94.39        52.07        46.01        36.37          .



 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                 .        3040.00      2474.00      1987.00      1611.00      1313.00      1039.00       853.00       666.00
 Standard Error        .         187.41       159.88       124.07        91.67        73.08        55.53        42.94        36.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              519.00       391.00       262.00       176.00        89.00
 Standard Error      27.65        23.41        17.15        11.75          .



 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             3282.00      2513.00      2042.00      1670.00      1329.00      1162.00       944.00       738.00       607.00
 Standard Error        .         187.15       174.43       144.70        94.99        71.01        73.34        57.30        42.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              464.00       354.00       231.00       154.00        66.00
 Standard Error      36.99        30.45        22.60        15.91          .



 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                 .            .            .        3195.00      2842.00      2182.00      1651.00      1302.00       996.00
 Standard Error        .            .            .            .         244.73       270.81       194.05       128.68        97.53

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              773.00       599.00       421.00       231.00       122.00
 Standard Error      67.48        53.46        48.47        32.78          .



 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                 .        2829.00      2243.00      1826.00      1480.00      1234.00       931.00       774.00       616.00
 Standard Error        .         204.96       132.94        97.71        72.88        64.94        52.39        33.92        32.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              460.00       351.00       239.00       163.00        84.00
 Standard Error      25.22        19.25        14.47         9.94          .



 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             2828.00      1885.00      1589.00      1295.00      1078.00       939.00       758.00       614.00       504.00
 Standard Error        .         198.04       115.95        98.31        68.53        58.78        57.06        42.91        34.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              401.00       291.00       208.00       153.00        72.00
 Standard Error      30.88        25.93        16.85        13.81          .



 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                 .            .        3710.00      3491.00      2518.00      2294.00      1745.00      1352.00      1041.00
 Standard Error        .            .            .         451.92       361.53       228.31       245.89       167.02       114.47

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              872.00       623.00       403.00       277.00       165.00
 Standard Error      85.07        82.80        54.39        30.66          .



 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                 .        3117.00      2665.00      2073.00      1715.00      1364.00      1077.00       820.00       639.00
 Standard Error        .            .         163.94       137.63        96.03        82.37        66.44        50.38        36.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              482.00       369.00       238.00       174.00        76.00
 Standard Error      27.23        22.51        15.70        10.99          .



 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             2891.00      1827.00      1617.00      1292.00      1008.00       851.00       731.00       561.00       433.00
 Standard Error     308.78       125.18       113.37       121.47        84.32        51.75        52.34        50.93        33.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              350.00       258.00       190.00       160.00        73.00
 Standard Error      26.90        21.99        12.37        11.84          .



 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                 .            .            .            .            .        3312.00      2816.00      1929.00      1239.00
 Standard Error        .            .            .            .            .            .         504.70       483.63       319.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              777.00       542.00       427.00       305.00       118.00
 Standard Error     173.78        82.58        51.70        53.02          .



 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                 .        2916.00      2396.00      1976.00      1603.00      1331.00      1078.00       887.00       673.00
 Standard Error        .         212.33       170.86       130.97       101.62        80.22        66.58        55.12        46.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              525.00       374.00       259.00       182.00        83.00
 Standard Error      35.12        28.53        17.94        14.27          .



 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             2590.00      1750.00      1528.00      1255.00       989.00       858.00       712.00       590.00       461.00
 Standard Error        .         129.32       118.09       123.05        91.42        60.09        54.84        49.87        41.32

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              364.00       260.00       202.00       161.00        85.00
 Standard Error      35.61        25.32        13.87        13.97          .



 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                 .            .            .        3262.00      3262.00      2423.00      2134.00      1819.00      1323.00
 Standard Error        .            .            .            .         639.17       348.84       229.78       298.58       318.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              853.00       623.00       453.00       258.00       121.00
 Standard Error     192.85       110.69        81.86        60.36          .



 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                 .        3153.00      2772.00      2243.00      1760.00      1405.00      1154.00       828.00       652.00
 Standard Error        .            .         247.44       214.56       172.25       119.46       102.77        83.47        51.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              491.00       377.00       253.00       185.00       111.00
 Standard Error      38.92        30.95        21.75        13.69          .



 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                 .        1861.00      1543.00      1366.00      1109.00       861.00       736.00       590.00       525.00
 Standard Error        .         195.95       139.04       120.83       134.81        96.76        65.46        50.07        46.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              384.00       305.00       196.00       115.00        50.00
 Standard Error      44.02        35.94        31.51        20.90          .



 Survival Analysis for TIME     Time to reintervention

                                    Total     Number      Number       Percent
                                              Events     Censored     Censored

PATAGEG2       18 to 29              2981       1178        1803         60.48
  FEESGRP        under £30            821        216         605         73.69
  FEESGRP        £30 to £79.99       1391        603         788         56.65
  FEESGRP        £80 or more          769        359         410         53.32

PATAGEG2       30 to 39              3894       1616        2278         58.50
  FEESGRP        under £30            914        278         636         69.58
  FEESGRP        £30 to £79.99       2004        890        1114         55.59
  FEESGRP        £80 or more          976        448         528         54.10

PATAGEG2       40 to 49              3901       1791        2110         54.09
  FEESGRP        under £30            797        268         529         66.37
  FEESGRP        £30 to £79.99       2205       1051        1154         52.34
  FEESGRP        £80 or more          899        472         427         47.50

PATAGEG2       50 to 59              3455       1499        1956         56.61
  FEESGRP        under £30            585        181         404         69.06
  FEESGRP        £30 to £79.99       2002        871        1131         56.49
  FEESGRP        £80 or more          868        447         421         48.50

PATAGEG2       60 to 69              2399       1074        1325         55.23
  FEESGRP        under £30            316         93         223         70.57
  FEESGRP        £30 to £79.99       1444        642         802         55.54
  FEESGRP        £80 or more          639        339         300         46.95

PATAGEG2       70 or older           1770        706        1064         60.11
  FEESGRP        under £30            281         78         203         72.24
  FEESGRP        £30 to £79.99       1019        394         625         61.33
  FEESGRP        £80 or more          470        234         236         50.21

Overall                             18400       7864       10536         57.26


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

               Statistic        df       Significance

 Log Rank         148.63        2           .0000


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

               Statistic        df       Significance

 Log Rank          77.22        2           .0000


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

               Statistic        df       Significance

 Log Rank          64.17        2           .0000


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

               Statistic        df       Significance

 Log Rank          66.67        2           .0000



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

               Statistic        df       Significance

 Log Rank          60.48        2           .0000


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

               Statistic        df       Significance

 Log Rank          32.78        2           .0000




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

 Factor         1.00     2.00

     2.00      82.39
             ( .0000)

     3.00     152.79    22.06
             ( .0000) ( .0000)


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

 Factor         1.00     2.00

     2.00      56.02
             ( .0000)

     3.00      72.11     4.81
             ( .0000) ( .0283)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00

     2.00      34.69
             ( .0000)

     3.00      66.16    13.73
             ( .0000) ( .0002)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00

     2.00      19.60
             ( .0000)

     3.00      62.94    30.38
             ( .0000) ( .0000)





 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00

     2.00      24.52
             ( .0000)

     3.00      55.49    23.06
             ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00

     2.00      10.40
             ( .0013)

     3.00      30.37    14.00
             ( .0000) ( .0002)





* 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 27-JUN-2003 15:02:05
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 93002
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 0:00:06.13




 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                 .        3101.00      2526.00      2133.00      1807.00      1466.00      1138.00       931.00       759.00
 Standard Error        .            .         129.40        92.82        79.29        77.08        57.60        38.89        34.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              567.00       398.00       245.00       152.00        64.00
 Standard Error      31.28        25.45        16.76        10.47          .



 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                 .            .            .        3481.00      2940.00      2406.00      1993.00      1604.00      1246.00
 Standard Error        .            .            .            .          96.87        77.25        60.43        52.26        42.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              934.00       694.00       476.00       295.00       175.00
 Standard Error      32.78        24.46        18.78        11.66          .



 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                 .            .            .            .            .        3068.00      2546.00      2067.00      1645.00
 Standard Error        .            .            .            .            .            .         117.25        93.89        70.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1323.00      1022.00       707.00       443.00       246.00
 Standard Error      53.16        46.72        37.14        24.71          .



 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                 .            .            .            .            .            .        3152.00      2528.00      2194.00
 Standard Error        .            .            .            .            .            .            .         126.16        77.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1855.00      1442.00      1063.00       786.00       474.00
 Standard Error      78.64        71.62        49.37        36.59          .



 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                 .        3394.00      2619.00      1936.00      1631.00      1365.00      1099.00       835.00       666.00
 Standard Error        .            .         189.25       121.24        66.35        57.73        53.38        42.02        30.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              496.00       353.00       217.00       145.00        66.00
 Standard Error      26.13        21.11        14.03         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                 .            .            .            .        3430.00      2736.00      2166.00      1703.00      1302.00
 Standard Error        .            .            .            .            .          90.68        66.74        51.13        39.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              986.00       730.00       498.00       316.00       171.00
 Standard Error      28.51        22.00        16.25        10.65          .



 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                 .            .            .            .            .        3079.00      2555.00      2057.00      1640.00
 Standard Error        .            .            .            .            .            .         116.73        95.41        69.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1317.00       988.00       726.00       422.00       231.00
 Standard Error      54.75        44.02        36.30        25.66          .



 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                 .            .            .            .            .        3551.00      3328.00      2806.00      2190.00
 Standard Error        .            .            .            .            .            .         133.83       158.05       115.68

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1913.00      1503.00      1118.00       810.00       537.00
 Standard Error      77.61        76.50        57.06        39.15          .



 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                 .        2607.00      2182.00      1823.00      1505.00      1173.00       931.00       720.00       588.00
 Standard Error        .         145.50        90.07        75.30        69.29        58.33        44.01        32.06        23.75

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              448.00       320.00       210.00       140.00        62.00
 Standard Error      21.42        17.62        11.82         8.11          .



 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                 .            .            .        3486.00      2794.00      2255.00      1806.00      1445.00      1109.00
 Standard Error        .            .            .            .          88.11        64.53        49.47        39.85        31.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       617.00       444.00       279.00       168.00
 Standard Error      24.11        18.13        13.16         8.92          .



 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                 .            .            .            .        3217.00      2604.00      2077.00      1657.00      1396.00
 Standard Error        .            .            .            .            .         138.37       105.87        70.58        50.98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1125.00       854.00       607.00       413.00       257.00
 Standard Error      47.13        40.39        29.84        19.14          .



 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                 .            .            .            .        3834.00      3337.00      3198.00      2470.00      2049.00
 Standard Error        .            .            .            .            .         117.44       174.50       149.31       111.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1708.00      1392.00      1069.00       791.00       497.00
 Standard Error      84.92        70.62        58.97        43.64          .



 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                 .        2212.00      1785.00      1453.00      1199.00       988.00       815.00       640.00       499.00
 Standard Error        .         141.80        82.97        62.71        47.79        38.39        33.10        29.01        23.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              373.00       276.00       196.00       128.00        62.00
 Standard Error      18.05        13.21         9.93         7.27          .



 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                 .            .        3375.00      2856.00      2352.00      1920.00      1535.00      1231.00       981.00
 Standard Error        .            .            .          78.98        65.28        52.25        41.08        31.01        24.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              765.00       596.00       415.00       268.00       169.00
 Standard Error      18.52        15.24        12.41         7.80          .



 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                 .            .            .        3828.00      2850.00      2311.00      1880.00      1526.00      1241.00
 Standard Error        .            .            .            .         219.92       131.35        96.05        73.07        59.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              938.00       734.00       572.00       413.00       251.00
 Standard Error      48.42        31.52        23.67        19.51          .



 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                 .            .            .            .        3388.00      3063.00      2490.00      2110.00      1888.00
 Standard Error        .            .            .            .            .         213.51       193.95       111.49       104.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1456.00      1168.00       890.00       644.00       432.00
 Standard Error     101.31        72.78        55.46        39.62          .



 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             2891.00      1670.00      1372.00      1116.00       931.00       770.00       649.00       525.00       414.00
 Standard Error     184.96        76.52        57.98        45.71        35.06        28.21        23.49        21.69        17.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              322.00       235.00       182.00       118.00        59.00
 Standard Error      14.53        10.39         7.79         6.80          .



 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                 .        3596.00      2871.00      2341.00      1972.00      1617.00      1301.00      1042.00       833.00
 Standard Error        .            .         108.53        69.88        52.98        46.03        37.19        28.44        22.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              639.00       490.00       370.00       234.00       157.00
 Standard Error      18.01        12.92        10.83         7.50          .



 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                 .            .        3117.00      2759.00      2171.00      1883.00      1587.00      1342.00      1046.00
 Standard Error        .            .            .         186.15       154.92        95.78        83.77        76.32        62.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              854.00       673.00       474.00       335.00       216.00
 Standard Error      44.34        41.91        32.15        20.43          .



 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                 .            .            .            .        3755.00      3458.00      2622.00      1924.00      1502.00
 Standard Error        .            .            .            .            .         368.96       364.06       250.79       169.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1126.00       912.00       721.00       592.00       373.00
 Standard Error     113.66        67.94        49.74        39.91          .



 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             2445.00      1591.00      1265.00      1084.00       863.00       699.00       565.00       453.00       343.00
 Standard Error     192.29       109.39        66.16        50.16        46.39        35.06        27.88        23.75        19.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              256.00       194.00       143.00        98.00        42.00
 Standard Error      14.16         9.95         7.35         6.41          .



 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                 .        3365.00      2575.00      2059.00      1699.00      1390.00      1137.00       933.00       753.00
 Standard Error        .            .         129.29        80.30        56.52        44.12        34.08        27.00        21.17

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              608.00       460.00       351.00       210.00       156.00
 Standard Error      17.90        14.04        11.78         7.79          .



 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                 .            .            .        3062.00      2462.00      1748.00      1407.00      1158.00       943.00
 Standard Error        .            .            .            .         273.73       197.00       104.38        74.05        52.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              804.00       610.00       475.00       355.00       216.00
 Standard Error      45.89        41.68        28.04        22.55          .



 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                 .            .            .        2823.00      2484.00      2106.00      1774.00      1674.00      1402.00
 Standard Error        .            .            .            .         225.56       214.43       140.28        97.29       123.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1202.00       924.00       696.00       540.00       419.00
 Standard Error     113.40        98.05        68.15        39.31          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                 14912      4897      10015        67.16
  INTGRP        under 150 days          2705      1131       1574        58.19
  INTGRP        150 to 249 days         6107      2188       3919        64.17
  INTGRP        250 to 399 days         3312       954       2358        71.20
  INTGRP        400 days or longer      2788       624       2164        77.62

PATAGEG2      30 to 39                 17773      5638      12135        68.28
  INTGRP        under 150 days          2879      1238       1641        57.00
  INTGRP        150 to 249 days         8787      2891       5896        67.10
  INTGRP        250 to 399 days         3492       983       2509        71.85
  INTGRP        400 days or longer      2615       526       2089        79.89

PATAGEG2      40 to 49                 16982      6107      10875        64.04
  INTGRP        under 150 days          3027      1458       1569        51.83
  INTGRP        150 to 249 days         8880      3265       5615        63.23
  INTGRP        250 to 399 days         3127       975       2152        68.82
  INTGRP        400 days or longer      1948       409       1539        79.00

PATAGEG2      50 to 59                 16491      6196      10295        62.43
  INTGRP        under 150 days          3023      1522       1501        49.65
  INTGRP        150 to 249 days         9327      3528       5799        62.17
  INTGRP        250 to 399 days         2637       818       1819        68.98
  INTGRP        400 days or longer      1504       328       1176        78.19

PATAGEG2      60 to 69                 12787      5452       7335        57.36
  INTGRP        under 150 days          2911      1621       1290        44.31
  INTGRP        150 to 249 days         7520      3093       4427        58.87
  INTGRP        250 to 399 days         1563       550       1013        64.81
  INTGRP        400 days or longer       793       188        605        76.29

PATAGEG2      70 or older               9927      4003       5924        59.68
  INTGRP        under 150 days          2193      1136       1057        48.20
  INTGRP        150 to 249 days         5929      2323       3606        60.82
  INTGRP        250 to 399 days         1199       392        807        67.31
  INTGRP        400 days or longer       606       152        454        74.92

Overall                                88872     32293      56579        63.66


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

               Statistic        df       Significance

 Log Rank         438.31        3           .0000


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

               Statistic        df       Significance

 Log Rank         525.25        3           .0000


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

               Statistic        df       Significance

 Log Rank         508.35        3           .0000





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

               Statistic        df       Significance

 Log Rank         506.77        3           .0000


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

               Statistic        df       Significance

 Log Rank         502.62        3           .0000


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

               Statistic        df       Significance

 Log Rank         383.66        3           .0000




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

 Factor         1.00     2.00     3.00

     2.00     121.96
             ( .0000)

     3.00     223.43    38.59
             ( .0000) ( .0000)

     4.00     385.81   137.98    31.85
             ( .0000) ( .0000) ( .0000)


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

 Factor         1.00     2.00     3.00

     2.00     233.26
             ( .0000)

     3.00     269.58    20.66
             ( .0000) ( .0000)

     4.00     441.17   119.27    42.32
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00     242.03
             ( .0000)

     3.00     257.12    19.58
             ( .0000) ( .0000)

     4.00     380.91   113.13    45.06
             ( .0000) ( .0000) ( .0000)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00     272.21
             ( .0000)

     3.00     261.25    24.00
             ( .0000) ( .0000)

     4.00     323.40    91.58    30.24
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00     325.88
             ( .0000)

     3.00     215.32    12.82
             ( .0000) ( .0003)

     4.00     229.49    61.41    25.26
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00     245.97
             ( .0000)

     3.00     187.70    19.02
             ( .0000) ( .0000)

     4.00     160.39    37.02     8.22
             ( .0000) ( .0000) ( .0041)





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 27-JUN-2003 15:02:12
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 202529
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 0:00:09.38




 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                 .            .        3573.00      2862.00      2383.00      1918.00      1574.00      1267.00      1006.00
 Standard Error        .            .            .         106.10        76.99        61.90        46.39        37.65        29.71

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              784.00       602.00       422.00       241.00       114.00
 Standard Error      22.52        18.02        15.29        10.76          .



 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                 .            .            .            .        3810.00      3036.00      2510.00      2010.00      1611.00
 Standard Error        .            .            .            .            .          57.10        40.34        32.30        24.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1267.00       974.00       707.00       450.00       222.00
 Standard Error      19.12        15.04        12.27         9.31          .



 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                 .            .            .            .            .        3622.00      2896.00      2377.00      1925.00
 Standard Error        .            .            .            .            .            .          73.32        50.97        40.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1519.00      1175.00       906.00       602.00       330.00
 Standard Error      31.89        23.14        18.52        15.16          .



 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                 .            .            .            .            .            .            .        3444.00      2844.00
 Standard Error        .            .            .            .            .            .            .            .          65.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2326.00      1841.00      1392.00      1007.00       637.00
 Standard Error      51.18        41.03        30.91        22.53          .



 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                 .        3649.00      3013.00      2470.00      2026.00      1687.00      1313.00      1044.00       822.00
 Standard Error        .            .         104.93        80.99        60.02        51.61        43.90        31.55        25.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              614.00       447.00       302.00       178.00        84.00
 Standard Error      20.73        15.57        11.78         8.00          .



 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                 .            .            .            .        3493.00      2827.00      2295.00      1813.00      1443.00
 Standard Error        .            .            .            .            .          48.19        36.79        28.26        21.61

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1106.00       805.00       553.00       349.00       182.00
 Standard Error      17.80        13.87         9.99         6.72          .



 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                 .            .            .            .        3881.00      3334.00      2763.00      2175.00      1728.00
 Standard Error        .            .            .            .            .          86.90        73.91        58.78        42.73

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1344.00      1035.00       730.00       493.00       270.00
 Standard Error      32.02        25.25        19.18        13.33          .



 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                 .            .            .            .            .            .        3679.00      3189.00      2575.00
 Standard Error        .            .            .            .            .            .            .          98.94        79.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2121.00      1678.00      1252.00       883.00       532.00
 Standard Error      57.27        48.30        36.66        26.82          .



 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                 .        3098.00      2590.00      2069.00      1707.00      1361.00      1114.00       875.00       686.00
 Standard Error        .         105.29        92.18        76.24        57.73        45.87        36.33        30.39        23.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              524.00       378.00       248.00       147.00        70.00
 Standard Error      19.05        15.49        11.17         7.41          .



 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                 .            .            .        3855.00      3056.00      2410.00      1932.00      1533.00      1196.00
 Standard Error        .            .            .            .          71.02        49.52        35.66        27.74        21.74

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              910.00       663.00       467.00       301.00       163.00
 Standard Error      17.11        12.88         9.25         6.46          .



 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                 .            .            .            .        3835.00      3267.00      2804.00      2224.00      1704.00
 Standard Error        .            .            .            .            .          97.76        87.62        82.16        61.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1309.00       972.00       713.00       479.00       256.00
 Standard Error      44.53        32.17        23.14        17.48          .



 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                 .            .            .            .            .        3828.00      3416.00      2969.00      2425.00
 Standard Error        .            .            .            .            .            .         115.49       116.55        98.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1984.00      1533.00      1106.00       772.00       474.00
 Standard Error      78.65        65.97        49.24        32.80          .



 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                 .        3073.00      2496.00      1969.00      1563.00      1300.00      1018.00       812.00       646.00
 Standard Error        .            .         117.88        95.41        65.38        51.26        44.11        31.68        27.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              473.00       337.00       233.00       142.00        63.00
 Standard Error      22.95        16.47        11.80         8.60          .



 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                 .            .            .        3575.00      2891.00      2352.00      1897.00      1493.00      1175.00
 Standard Error        .            .            .            .          74.35        54.88        43.55        33.78        26.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              883.00       652.00       462.00       294.00       166.00
 Standard Error      20.85        15.10        11.31         7.76          .



 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                 .            .            .            .            .        3004.00      2517.00      1947.00      1521.00
 Standard Error        .            .            .            .            .            .         119.69       100.62        72.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1141.00       869.00       667.00       419.00       228.00
 Standard Error      53.41        34.78        28.34        22.69          .



 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                 .            .            .            .            .            .            .        2898.00      2313.00
 Standard Error        .            .            .            .            .            .            .            .         136.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1999.00      1463.00      1108.00       793.00       508.00
 Standard Error     113.17       100.18        63.50        45.99          .



 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                 .        2821.00      2283.00      1724.00      1363.00      1125.00       874.00       711.00       573.00
 Standard Error        .         195.90       136.76       111.13        70.43        54.37        44.12        30.96        24.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              454.00       332.00       214.00       139.00        59.00
 Standard Error      21.85        19.93        13.97         9.58          .



 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                 .            .            .        3224.00      2659.00      2139.00      1726.00      1386.00      1112.00
 Standard Error        .            .            .            .          87.12        69.34        52.29        39.58        31.58

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              860.00       631.00       448.00       278.00       160.00
 Standard Error      26.44        20.55        15.44        10.46          .



 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                 .            .            .            .            .        2873.00      2284.00      1734.00      1435.00
 Standard Error        .            .            .            .            .            .         197.02       136.38        86.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1146.00       814.00       568.00       370.00       244.00
 Standard Error      79.78        67.34        44.84        27.06          .



 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                 .            .            .            .            .            .            .        3729.00      2498.00
 Standard Error        .            .            .            .            .            .            .            .         369.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2183.00      1587.00      1104.00       642.00       398.00
 Standard Error     182.07       185.11       144.75        87.01          .



 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                 .        2841.00      1989.00      1524.00      1282.00      1071.00       813.00       643.00       492.00
 Standard Error        .            .         236.74       121.17        77.22        73.72        64.64        48.33        38.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              359.00       255.00       183.00       133.00        70.00
 Standard Error      29.97        20.12        12.75         9.63          .



 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                 .            .            .            .        2687.00      2144.00      1742.00      1328.00      1033.00
 Standard Error        .            .            .            .            .         106.15        82.25        66.59        46.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              792.00       595.00       424.00       275.00       175.00
 Standard Error      34.76        26.14        20.04        12.84          .



 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                 .            .            .            .            .        3128.00      2217.00      1787.00      1441.00
 Standard Error        .            .            .            .            .            .         323.53       190.93       168.49

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1035.00       697.00       483.00       383.00       224.00
 Standard Error     142.93        96.44        50.06        33.88          .



 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                 .            .            .            .            .            .        2494.00      2038.00      1752.00
 Standard Error        .            .            .            .            .            .            .         387.83       243.37

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1326.00      1138.00       994.00       694.00       487.00
 Standard Error     198.57       106.05       131.23       114.44          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                 59597     16583      43014        72.17
  INTGRP        under 150 days          7541      2602       4939        65.50
  INTGRP        150 to 249 days        25453      7906      17547        68.94
  INTGRP        250 to 399 days        14040      3713      10327        73.55
  INTGRP        400 days or longer     12563      2362      10201        81.20

PATAGEG2      30 to 39                 54925     16745      38180        69.51
  INTGRP        under 150 days          6780      2803       3977        58.66
  INTGRP        150 to 249 days        28265      9257      19008        67.25
  INTGRP        250 to 399 days        11491      3155       8336        72.54
  INTGRP        400 days or longer      8389      1530       6859        81.76

PATAGEG2      40 to 49                 36627     12439      24188        66.04
  INTGRP        under 150 days          5240      2433       2807        53.57
  INTGRP        150 to 249 days        20639      7332      13307        64.48
  INTGRP        250 to 399 days         6617      1845       4772        72.12
  INTGRP        400 days or longer      4131       829       3302        79.93

PATAGEG2      50 to 59                 22622      7816      14806        65.45
  INTGRP        under 150 days          3556      1663       1893        53.23
  INTGRP        150 to 249 days        13569      4787       8782        64.72
  INTGRP        250 to 399 days         3602      1010       2592        71.96
  INTGRP        400 days or longer      1895       356       1539        81.21

PATAGEG2      60 to 69                 11550      4303       7247        62.74
  INTGRP        under 150 days          2403      1178       1225        50.98
  INTGRP        150 to 249 days         7063      2596       4467        63.25
  INTGRP        250 to 399 days         1385       398        987        71.26
  INTGRP        400 days or longer       699       131        568        81.26

PATAGEG2      70 or older               5535      1947       3588        64.82
  INTGRP        under 150 days          1190       561        629        52.86
  INTGRP        150 to 249 days         3490      1168       2322        66.53
  INTGRP        250 to 399 days          595       167        428        71.93
  INTGRP        400 days or longer       260        51        209        80.38

Overall                               190856     59833     131023        68.65


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

               Statistic        df       Significance

 Log Rank        1299.24        3           .0000


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

               Statistic        df       Significance

 Log Rank        1174.99        3           .0000


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

               Statistic        df       Significance

 Log Rank         926.08        3           .0000





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

               Statistic        df       Significance

 Log Rank         547.06        3           .0000


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

               Statistic        df       Significance

 Log Rank         323.04        3           .0000


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

               Statistic        df       Significance

 Log Rank         156.44        3           .0000




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

 Factor         1.00     2.00     3.00

     2.00     306.82
             ( .0000)

     3.00     501.05    69.71
             ( .0000) ( .0000)

     4.00    1294.62   605.46   245.36
             ( .0000) ( .0000) ( .0000)


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

 Factor         1.00     2.00     3.00

     2.00     400.29
             ( .0000)

     3.00     552.33    65.25
             ( .0000) ( .0000)

     4.00    1115.29   450.29   178.72
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00     343.75
             ( .0000)

     3.00     537.96   107.46
             ( .0000) ( .0000)

     4.00     720.48   276.20    62.72
             ( .0000) ( .0000) ( .0000)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00     246.78
             ( .0000)

     3.00     289.91    41.98
             ( .0000) ( .0000)

     4.00     391.13   148.19    51.25
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00     173.74
             ( .0000)

     3.00     140.86    16.20
             ( .0000) ( .0001)

     4.00     183.72    70.89    27.85
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00     109.75
             ( .0000)

     3.00      68.93     5.63
             ( .0000) ( .0177)

     4.00      56.89    13.95     4.23
             ( .0000) ( .0002) ( .0398)





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 27-JUN-2003 15:02:21
Comments
Input Data D:\temp1.sav
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 19071
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 0:00:04.29




 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             3174.00      2030.00      1827.00      1418.00      1225.00       976.00       727.00       600.00       481.00
 Standard Error        .         308.36       185.77       174.34       119.40       121.41        90.81        58.26        42.13

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              408.00       285.00       182.00        92.00        53.00
 Standard Error      40.69        38.21        30.79        17.35          .



 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                 .        3455.00      2769.00      2286.00      1911.00      1582.00      1286.00      1006.00       826.00
 Standard Error        .            .         201.05       145.95       114.62        98.02        84.78        63.63        42.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              672.00       500.00       378.00       245.00       145.00
 Standard Error      40.16        32.38        25.23        18.68          .



 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      3284.00      2841.00      2154.00      1823.00      1344.00      1106.00
 Standard Error        .            .            .         354.10       323.32       270.58       208.57       154.65        84.51

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              927.00       667.00       499.00       332.00       202.00
 Standard Error      82.28        70.78        50.93        37.53          .



 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                 .            .            .            .        3328.00      2954.00      2648.00      2079.00      1853.00
 Standard Error        .            .            .            .            .         244.42       254.00       217.07       166.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1459.00      1320.00       984.00       783.00       515.00
 Standard Error     122.94        96.53       106.03        68.49          .



 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             3704.00      2233.00      1888.00      1529.00      1195.00       949.00       671.00       539.00       366.00
 Standard Error        .         229.75       165.85       161.87       144.90       109.18        83.08        57.64        51.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              261.00       185.00       125.00        69.00        35.00
 Standard Error      29.95        21.54        16.30        10.22          .



 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                 .        3021.00      2590.00      2102.00      1639.00      1329.00      1091.00       850.00       673.00
 Standard Error        .         159.70       139.85       130.16        99.86        68.05        56.23        46.25        33.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              535.00       407.00       269.00       180.00        93.00
 Standard Error      25.95        23.42        17.90        11.64          .



 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                 .        3520.00      3347.00      2932.00      2451.00      1879.00      1495.00      1122.00       957.00
 Standard Error        .            .         266.43       229.16       253.28       221.48       160.04       109.66        68.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              761.00       599.00       392.00       307.00       183.00
 Standard Error      64.24        57.15        41.72        23.81          .



 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                 .            .            .            .            .            .        2449.00      1953.00      1841.00
 Standard Error        .            .            .            .            .            .            .         242.94       174.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1374.00      1135.00       829.00       637.00       446.00
 Standard Error     179.28       152.63       105.93        65.74          .



 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             2955.00      1668.00      1347.00      1162.00       928.00       704.00       575.00       456.00       364.00
 Standard Error     343.01       206.98       116.80        88.26        90.31        68.23        47.27        37.56        30.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              282.00       196.00       144.00        91.00        43.00
 Standard Error      27.06        20.94        13.85        11.24          .



 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                 .        2828.00      2230.00      1791.00      1498.00      1257.00       985.00       787.00       647.00
 Standard Error        .            .         135.52        95.48        67.42        60.96        53.53        37.13        30.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              491.00       359.00       234.00       177.00        87.00
 Standard Error      27.46        22.45        13.98         9.48          .



 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                 .        3195.00      3004.00      2588.00      2076.00      1634.00      1329.00       931.00       776.00
 Standard Error        .         188.65       160.32       268.15       244.05       177.55       157.54       113.37        61.76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              616.00       493.00       370.00       260.00       131.00
 Standard Error      51.42        40.61        33.94        29.40          .



 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                 .            .            .            .        3143.00      3006.00      2842.00      1896.00      1383.00
 Standard Error        .            .            .            .            .         406.97       484.13       433.99       240.14

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1104.00       931.00       819.00       624.00       440.00
 Standard Error     135.50        78.57        72.15        74.55          .



 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             3730.00      2199.00      1669.00      1497.00      1204.00       936.00       751.00       516.00       389.00
 Standard Error        .         183.84       154.02        99.26       115.11        93.96        80.71        67.01        36.95

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              303.00       200.00       142.00        87.00        38.00
 Standard Error      31.65        24.66        14.80        11.63          .



 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                 .        2852.00      2157.00      1785.00      1493.00      1180.00       910.00       740.00       581.00
 Standard Error        .         226.95       156.48        92.45        79.47        73.77        52.96        37.76        31.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              450.00       359.00       228.00       177.00        90.00
 Standard Error      21.90        20.35        14.76         9.28          .



 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                 .        3491.00      3461.00      3286.00      2624.00      2166.00      1701.00      1244.00       958.00
 Standard Error        .         137.97       168.39       315.69       316.43       258.99       231.74       189.78       116.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              755.00       579.00       405.00       286.00       176.00
 Standard Error      79.99        65.39        47.39        32.73          .



 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                 .            .            .            .            .        2983.00      2983.00      2449.00      2337.00
 Standard Error        .            .            .            .            .            .         491.30       300.50       226.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             2246.00      1449.00       951.00       650.00       413.00
 Standard Error     422.31       397.25       223.82       125.39          .



 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             2455.00      1892.00      1528.00      1138.00       959.00       783.00       623.00       494.00       386.00
 Standard Error     334.11       141.51       184.82       132.83        81.84        73.88        61.27        49.34        41.90

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              284.00       202.00       142.00        88.00        36.00
 Standard Error      33.90        24.26        17.07        13.53          .



 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                 .        3403.00      2571.00      2036.00      1634.00      1366.00      1077.00       854.00       689.00
 Standard Error        .            .         241.55       155.98       109.33        83.93        74.21        52.79        41.85

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              525.00       385.00       267.00       189.00       104.00
 Standard Error      35.49        27.67        18.54        13.01          .



 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                 .        3155.00      3028.00      2816.00      1680.00      1484.00      1197.00      1103.00       912.00
 Standard Error        .            .         310.07       569.86       488.49       195.38       132.90        95.23       118.64

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              706.00       533.00       371.00       284.00       183.00
 Standard Error     107.90        85.31        56.17        34.11          .



 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                 .            .            .            .            .            .        2734.00      2459.00      1952.00
 Standard Error        .            .            .            .            .            .            .         408.33       542.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1929.00      1072.00       663.00       575.00       322.00
 Standard Error     460.73       426.73       165.97       140.13          .



 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                 .        1828.00      1471.00      1218.00       882.00       741.00       581.00       510.00       378.00
 Standard Error        .         212.32       166.30       154.87       122.24        75.25        54.74        43.89        44.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              301.00       225.00       144.00       105.00        46.00
 Standard Error      31.23        28.02        19.65        13.57          .



 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                 .        3345.00      2772.00      2294.00      1888.00      1603.00      1284.00      1035.00       766.00
 Standard Error        .            .         255.80       214.25       151.73       127.71       103.21        87.20        71.29

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              595.00       424.00       310.00       192.00       131.00
 Standard Error      48.93        36.62        26.58        17.54          .



 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             3153.00      3153.00      3153.00      3153.00      3153.00      1949.00      1859.00      1400.00       749.00
 Standard Error     451.14       451.14       451.14       451.14       452.24       174.21       429.95       374.13       260.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              714.00       549.00       424.00       307.00       161.00
 Standard Error      80.15        98.12        70.58        62.96          .



 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                 .            .            .            .            .            .        1890.00      1239.00      1102.00
 Standard Error        .            .            .            .            .            .            .         494.21       289.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              777.00       637.00       534.00       413.00       270.00
 Standard Error     236.97       140.97        96.02       112.60          .



 Survival Analysis for TIME     Time to reintervention

                                       Total    Number     Number      Percent
                                                Events    Censored    Censored

PATAGEG2      18 to 29                  2981      1178       1803        60.48
  INTGRP        under 150 days           493       234        259        52.54
  INTGRP        150 to 249 days         1383       604        779        56.33
  INTGRP        250 to 399 days          612       211        401        65.52
  INTGRP        400 days or longer       493       129        364        73.83

PATAGEG2      30 to 39                  3894      1616       2278        58.50
  INTGRP        under 150 days           657       330        327        49.77
  INTGRP        150 to 249 days         2122       943       1179        55.56
  INTGRP        250 to 399 days          709       257        452        63.75
  INTGRP        400 days or longer       406        86        320        78.82

PATAGEG2      40 to 49                  3901      1791       2110        54.09
  INTGRP        under 150 days           741       413        328        44.26
  INTGRP        150 to 249 days         2205      1044       1161        52.65
  INTGRP        250 to 399 days          641       256        385        60.06
  INTGRP        400 days or longer       314        78        236        75.16

PATAGEG2      50 to 59                  3455      1499       1956        56.61
  INTGRP        under 150 days           717       374        343        47.84
  INTGRP        150 to 249 days         2013       920       1093        54.30
  INTGRP        250 to 399 days          504       170        334        66.27
  INTGRP        400 days or longer       221        35        186        84.16

PATAGEG2      60 to 69                  2399      1074       1325        55.23
  INTGRP        under 150 days           559       312        247        44.19
  INTGRP        150 to 249 days         1451       634        817        56.31
  INTGRP        250 to 399 days          275       103        172        62.55
  INTGRP        400 days or longer       114        25         89        78.07

PATAGEG2      70 or older               1770       706       1064        60.11
  INTGRP        under 150 days           484       244        240        49.59
  INTGRP        150 to 249 days         1013       381        632        62.39
  INTGRP        250 to 399 days          183        55        128        69.95
  INTGRP        400 days or longer        90        26         64        71.11

Overall                                18400      7864      10536        57.26


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

               Statistic        df       Significance

 Log Rank         116.50        3           .0000


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

               Statistic        df       Significance

 Log Rank         114.03        3           .0000


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

               Statistic        df       Significance

 Log Rank         108.63        3           .0000





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

               Statistic        df       Significance

 Log Rank          93.52        3           .0000


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

               Statistic        df       Significance

 Log Rank          68.87        3           .0000


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

               Statistic        df       Significance

 Log Rank          51.82        3           .0000




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

 Factor         1.00     2.00     3.00

     2.00      26.89
             ( .0000)

     3.00      48.81    11.01
             ( .0000) ( .0009)

     4.00     108.86    51.70    14.84
             ( .0000) ( .0000) ( .0001)


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

 Factor         1.00     2.00     3.00

     2.00      23.75
             ( .0000)

     3.00      46.35    13.23
             ( .0000) ( .0003)

     4.00      96.22    57.71    22.37
             ( .0000) ( .0000) ( .0000)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 40 to 49

 Factor         1.00     2.00     3.00

     2.00      35.43
             ( .0000)

     3.00      46.74     7.72
             ( .0000) ( .0054)

     4.00      86.94    43.77    20.02
             ( .0000) ( .0000) ( .0000)



 Log Rank Statistic and (Significance)
 For PATAGEG2 = 50 to 59

 Factor         1.00     2.00     3.00

     2.00      11.87
             ( .0006)

     3.00      42.60    22.70
             ( .0000) ( .0000)

     4.00      65.89    48.01    15.83
             ( .0000) ( .0000) ( .0001)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 60 to 69

 Factor         1.00     2.00     3.00

     2.00      36.50
             ( .0000)

     3.00      26.07     1.91
             ( .0000) ( .1671)

     4.00      39.61    17.61    10.56
             ( .0000) ( .0000) ( .0012)


 Log Rank Statistic and (Significance)
 For PATAGEG2 = 70 or older

 Factor         1.00     2.00     3.00

     2.00      37.65
             ( .0000)

     3.00      21.13     1.58
             ( .0000) ( .2087)

     4.00      16.70     2.78      .51
             ( .0000) ( .0952) ( .4762)