* Interaction Survival.sps.

* Written by PSKL on 03/04/03.

* Produce tables of order statistics of survival curves for selective interactions between descriptive variables.

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

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

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

* Consolidate the age groupings.

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

Variable Labels patageg2 'Patient age (years)'.

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

* Group Teeth.

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

Variable labels toothtyp 'Tooth type'.

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


* Save a restricted set of variables.

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

* Prepare for split file analysis.

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

sort cases by toothtyp.

weight by weight.

split file by toothtyp.

KM
  time  by yearplac /STATUS=reint(1)
    /strata = maintrt
    /plot=survival
    /PRINT MEAN
    /PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95).

Kaplan-Meier

Notes
Output Created 03-APR-2003 17:46:10
Comments
Input Data D:\temp1.sav
Filter <none>
Weight weighting (for time-dependent censor adjustment)
Split File Tooth type
N of Rows in Working Data File 822578
Syntax KM
time by yearplac /STATUS=reint(1)
/strata = maintrt
/plot=survival
/PRINT MEAN
/PERCENTILES = (25,35,40,45,50,55,60,65,70,75,80,85,90,95).
Resources Elapsed Time 0:01:10.08

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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2366.39                2.62     (  2361.24,   2371.53 )
 (Limited to   4014.0 )
 Median:    2364.00               11.23     (  2341.99,   2386.01 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3736.00      3170.00      2364.00      1861.00      1468.00      1239.00       990.00
 Standard Error        .            .            .          11.73        11.23         7.65         5.04         3.82         3.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              724.00       570.00       396.00       311.00       184.00
 Standard Error       2.84         2.08         1.53          .99          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2084.63                2.49     (  2079.75,   2089.52 )
 (Limited to   3651.0 )
 Median:    2021.00                9.43     (  2002.53,   2039.47 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3372.00      2570.00      2021.00      1492.00      1216.00       929.00       818.00
 Standard Error        .            .            .          11.85         9.43         6.93         4.68         3.15         2.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              667.00       484.00       367.00       221.00       105.00
 Standard Error       2.36         1.97         1.53         1.32          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2020.10                2.12     (  2015.95,   2024.26 )
 (Limited to   3282.0 )
 Median:    2168.00                8.81     (  2150.73,   2185.27 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2804.00      2168.00      1798.00      1425.00      1183.00       981.00
 Standard Error        .            .            .            .           8.81         6.12         5.07         3.37         3.31

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              770.00       573.00       428.00       298.00       154.00
 Standard Error       2.66         2.16         1.58         1.31          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1754.70                2.06     (  1750.66,   1758.75 )
 (Limited to   2918.0 )
 Median:    1814.00                6.33     (  1801.60,   1826.40 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2205.00      1814.00      1513.00      1238.00      1032.00       863.00
 Standard Error        .            .            .            .           6.33         5.18         4.41         3.43         3.23

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              635.00       469.00       383.00       219.00       149.00
 Standard Error       3.05         1.71         1.63         1.25          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1724.48                2.01     (  1720.54,   1728.41 )
 (Limited to   2551.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1891.00      1561.00      1327.00      1010.00
 Standard Error        .            .            .            .            .            .           6.38         5.48         4.55

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              806.00       579.00       441.00       199.00       113.00
 Standard Error       3.70         2.97         2.68         1.96          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1478.04                1.67     (  1474.77,   1481.31 )
 (Limited to   2188.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1574.00      1335.00      1102.00       853.00
 Standard Error        .            .            .            .            .            .           4.76         4.95         4.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              653.00       459.00       320.00       196.00       121.00
 Standard Error       3.21         2.61         1.82         1.19          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1308.08                1.30     (  1305.52,   1310.63 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1643.00      1320.00      1123.00       898.00
 Standard Error        .            .            .            .            .            .           5.23         4.08         4.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              700.00       492.00       389.00       266.00       175.00
 Standard Error       3.76         2.41         1.57         1.24          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1034.59                1.17     (  1032.29,   1036.89 )
 (Limited to   1456.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1280.00      1088.00       847.00       721.00
 Standard Error        .            .            .            .            .            .           4.79         4.33         3.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              538.00       393.00       315.00       190.00       107.00
 Standard Error       3.09         1.78         1.57         1.57          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       794.02                 .96     (   792.15,    795.89 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .         972.00       655.00       549.00
 Standard Error        .            .            .            .            .            .            .           4.95         2.94

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              382.00       269.00       203.00       134.00        80.00
 Standard Error       2.85         1.67         1.14          .87          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       577.23                 .58     (   576.10,    578.36 )
 (Limited to   719.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              407.00       289.00       193.00       146.00        57.00
 Standard Error        .           1.80         1.13          .97          .



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

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       323.03                 .28     (   322.49,    323.58 )
 (Limited to   362.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         252.00       168.00        78.00
 Standard Error        .            .            .           1.35          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2486.64                5.47     (  2475.92,   2497.35 )
 (Limited to   4011.0 )
 Median:    2513.00               16.69     (  2480.29,   2545.71 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3367.00      3091.00      2513.00      2087.00      1945.00      1745.00      1535.00
 Standard Error        .            .            .          13.77        16.69        11.63         6.33         6.88        12.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1228.00       702.00       555.00       284.00       189.00
 Standard Error      11.59         9.04         5.18         3.71          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2403.75                4.19     (  2395.54,   2411.97 )
 (Limited to   3651.0 )
 Median:    2380.00               15.75     (  2349.14,   2410.86 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3255.00      2380.00      2155.00      1903.00      1705.00      1613.00
 Standard Error        .            .            .            .          15.75         8.09         7.45         4.75         6.54

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1286.00       973.00       747.00       632.00       234.00
 Standard Error       8.85         6.17         3.92         4.91          .



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

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2201.45                5.50     (  2190.67,   2212.22 )
 (Limited to   3281.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2069.00      1925.00      1280.00      1161.00
 Standard Error        .            .            .            .            .            .          13.58        14.17         5.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1005.00       715.00       493.00       373.00       224.00
 Standard Error       8.97         9.84         5.24         2.73          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2088.73                4.19     (  2080.51,   2096.95 )
 (Limited to   2894.0 )
 Median:    2733.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2733.00      2530.00      2102.00      1818.00      1737.00
 Standard Error        .            .            .            .            .          14.91        14.18         9.53        12.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1127.00      1019.00       770.00       345.00       189.00
 Standard Error      12.46         7.62         8.44         6.35          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1713.97                3.62     (  1706.87,   1721.07 )
 (Limited to   2544.0 )
 Median:    1827.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1827.00      1786.00      1484.00      1242.00       917.00
 Standard Error        .            .            .            .            .           7.16         9.71         9.62         8.30

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              818.00       733.00       526.00       338.00       258.00
 Standard Error       4.51         4.56         4.96         2.58          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1584.68                3.28     (  1578.25,   1591.11 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1764.00      1608.00      1364.00      1147.00
 Standard Error        .            .            .            .            .            .           9.40         7.53         6.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1080.00       684.00       385.00       231.00       174.00
 Standard Error       8.72        11.29         7.03         2.39          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1394.58                2.67     (  1389.34,   1399.82 )
 (Limited to   1813.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1245.00      1092.00
 Standard Error        .            .            .            .            .            .            .            .           5.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              914.00       877.00       484.00       322.00       194.00
 Standard Error       5.80         8.37         7.81         3.50          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1169.58                2.58     (  1164.53,   1174.64 )
 (Limited to   1452.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1218.00       560.00       291.00       105.00        27.00
 Standard Error        .          13.67         6.44         3.25          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       896.11                1.72     (   892.74,    899.48 )
 (Limited to   1089.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              804.00       540.00       302.00       264.00       141.00
 Standard Error        .           7.59         4.51         2.20          .



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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       610.36                1.01     (   608.39,    612.34 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              661.00       426.00       259.00       182.00       157.00
 Standard Error       9.61         5.07         3.47         2.51          .



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

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       321.58                 .58     (   320.44,    322.72 )
 (Limited to   361.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2452.08                 .55     (  2450.99,   2453.16 )
 (Limited to   4016.0 )
 Median:    2645.00                2.03     (  2641.01,   2648.99 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3249.00      2645.00      2162.00      1716.00      1365.00      1119.00
 Standard Error        .            .            .            .           2.03         1.69         1.41         1.02          .77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              889.00       686.00       518.00       356.00       187.00
 Standard Error        .65          .51          .40          .33          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2260.83                 .49     (  2259.86,   2261.80 )
 (Limited to   3651.0 )
 Median:    2528.00                1.95     (  2524.19,   2531.81 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3100.00      2528.00      2050.00      1658.00      1343.00      1050.00
 Standard Error        .            .            .            .           1.95         1.58         1.24         1.03          .79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              846.00       643.00       473.00       314.00       175.00
 Standard Error        .61          .51          .39          .30          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2088.96                 .45     (  2088.07,   2089.84 )
 (Limited to   3283.0 )
 Median:    2446.00                1.93     (  2442.22,   2449.78 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3015.00      2446.00      2008.00      1659.00      1338.00      1054.00
 Standard Error        .            .            .            .           1.93         1.47         1.21         1.05          .87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       607.00       440.00       278.00       163.00
 Standard Error        .69          .52          .41          .28          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1940.83                 .40     (  1940.05,   1941.61 )
 (Limited to   2918.0 )
 Median:    2555.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2555.00      2106.00      1686.00      1350.00      1052.00
 Standard Error        .            .            .            .            .           1.63         1.37         1.10          .87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              825.00       613.00       432.00       270.00       155.00
 Standard Error        .67          .55          .42          .29          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1746.83                 .34     (  1746.16,   1747.51 )
 (Limited to   2554.0 )
 Median:    2499.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2499.00      1961.00      1591.00      1308.00      1038.00
 Standard Error        .            .            .            .            .           1.70         1.19          .97          .83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              810.00       603.00       423.00       263.00       161.00
 Standard Error        .67          .55          .43          .27          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1585.15                 .28     (  1584.59,   1585.70 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1726.00      1380.00      1082.00
 Standard Error        .            .            .            .            .            .            .           1.13          .88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              848.00       634.00       440.00       274.00       158.00
 Standard Error        .70          .58          .45          .30          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1356.46                 .23     (  1356.01,   1356.90 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1638.00      1259.00      1008.00
 Standard Error        .            .            .            .            .            .            .           1.09          .76

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              794.00       595.00       413.00       261.00       139.00
 Standard Error        .63          .53          .41          .28          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1119.72                 .17     (  1119.38,   1120.06 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1234.00       925.00
 Standard Error        .            .            .            .            .            .            .            .            .83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              723.00       526.00       371.00       225.00       119.00
 Standard Error        .60          .48          .36          .26          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       887.63                 .12     (   887.40,    887.86 )
 (Limited to   1095.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              718.00       536.00       374.00       225.00       136.00
 Standard Error        .63          .47          .37          .24          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       625.01                 .07     (   624.87,    625.14 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         538.00       364.00       207.00       117.00
 Standard Error        .            .            .40          .25          .



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

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       336.37                 .03     (   336.30,    336.43 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2256.40                1.13     (  2254.19,   2258.62 )
 (Limited to   4016.0 )
 Median:    2126.00                3.06     (  2120.00,   2132.00 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3881.00      3039.00      2540.00      2126.00      1734.00      1419.00      1175.00       932.00
 Standard Error        .            .           5.11         3.50         3.06         2.61         1.99         1.66         1.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              735.00       574.00       399.00       257.00       163.00
 Standard Error       1.07          .92          .76          .47          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2183.30                 .96     (  2181.42,   2185.18 )
 (Limited to   3651.0 )
 Median:    2229.00                3.05     (  2223.02,   2234.98 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3186.00      2670.00      2229.00      1833.00      1568.00      1211.00      1024.00
 Standard Error        .            .            .           3.51         3.05         2.38         2.13         1.79         1.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              813.00       661.00       469.00       306.00       172.00
 Standard Error       1.06          .91          .83          .57          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2078.46                 .83     (  2076.84,   2080.08 )
 (Limited to   3284.0 )
 Median:    2421.00                2.69     (  2415.73,   2426.27 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2809.00      2421.00      2069.00      1671.00      1300.00      1033.00
 Standard Error        .            .            .            .           2.69         2.54         2.56         2.03         1.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              791.00       603.00       457.00       292.00       175.00
 Standard Error       1.20          .84          .70          .52          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1854.26                 .70     (  1852.88,   1855.64 )
 (Limited to   2918.0 )
 Median:    2141.00                2.63     (  2135.84,   2146.16 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2562.00      2141.00      1773.00      1457.00      1183.00       994.00
 Standard Error        .            .            .            .           2.63         2.24         1.87         1.42         1.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              765.00       555.00       386.00       263.00       149.00
 Standard Error       1.18          .93          .64          .43          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1639.33                 .63     (  1638.09,   1640.57 )
 (Limited to   2554.0 )
 Median:    1899.00                2.88     (  1893.36,   1904.64 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2428.00      1899.00      1583.00      1308.00      1091.00       882.00
 Standard Error        .            .            .            .           2.88         1.98         1.63         1.34         1.25

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              672.00       522.00       350.00       216.00       142.00
 Standard Error       1.01          .82          .69          .39          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1436.64                 .61     (  1435.44,   1437.84 )
 (Limited to   2190.0 )
 Median:    1741.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1741.00      1487.00      1231.00       993.00       783.00
 Standard Error        .            .            .            .            .           1.97         1.87         1.56         1.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              606.00       468.00       321.00       203.00       119.00
 Standard Error       1.00          .82          .67          .44          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1286.82                 .48     (  1285.87,   1287.77 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1617.00      1240.00      1001.00       799.00
 Standard Error        .            .            .            .            .            .           2.27         1.56         1.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              642.00       493.00       368.00       232.00       158.00
 Standard Error        .96          .80          .68          .45          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1054.34                 .39     (  1053.58,   1055.11 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1113.00       875.00       707.00
 Standard Error        .            .            .            .            .            .            .           1.48         1.07

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              565.00       434.00       292.00       191.00       124.00
 Standard Error        .88          .81          .63          .36          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       840.66                 .28     (   840.12,    841.20 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         906.00       706.00
 Standard Error        .            .            .            .            .            .            .            .           1.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              551.00       418.00       320.00       196.00       102.00
 Standard Error        .94          .71          .59          .48          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       617.02                 .16     (   616.70,    617.33 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              598.00       462.00       343.00       210.00       146.00
 Standard Error        .            .78          .69          .42          .



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

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       330.12                 .08     (   329.96,    330.27 )
 (Limited to   362.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         340.00       196.00        98.00
 Standard Error        .            .            .            .66          .



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

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam               ******  ******   ******      56.60
  YEARPLAC     1991.00                           414000  203000   211000      50.97
  YEARPLAC     1992.00                           377000  195000   182000      48.28
  YEARPLAC     1993.00                           390000  188000   202000      51.79
  YEARPLAC     1994.00                           321000  163000   158000      49.22
  YEARPLAC     1995.00                           246000  104000   142000      57.72
  YEARPLAC     1996.00                           258000  113000   145000      56.20
  YEARPLAC     1997.00                           256000  106000   150000      58.59
  YEARPLAC     1998.00                           204000   86000   118000      57.84
  YEARPLAC     1999.00                           180000   66000   114000      63.33
  YEARPLAC     2000.00                           173000   47000   126000      72.83
  YEARPLAC     2001.00                           149000   17000   132000      88.59

MAINTRT     Two surface amalgam, not MO or DO    653000  245000   408000      62.48
  YEARPLAC     1991.00                            82000   41000    41000      50.00
  YEARPLAC     1992.00                           105000   49000    56000      53.33
  YEARPLAC     1993.00                            55000   23000    32000      58.18
  YEARPLAC     1994.00                            64000   25000    39000      60.94
  YEARPLAC     1995.00                            70000   31000    39000      55.71
  YEARPLAC     1996.00                            61000   23000    38000      62.30
  YEARPLAC     1997.00                            52000   18000    34000      65.38
  YEARPLAC     1998.00                            39000   10000    29000      74.36
  YEARPLAC     1999.00                            39000   10000    29000      74.36
  YEARPLAC     2000.00                            49000   11000    38000      77.55
  YEARPLAC     2001.00                            37000    4000    33000      89.19

MAINTRT     Composite resin                      ******  ******   ******      64.85
  YEARPLAC     1991.00                           ******  ******   ******      53.07
  YEARPLAC     1992.00                           ******  ******   ******      52.71
  YEARPLAC     1993.00                           ******  ******   ******      53.80
  YEARPLAC     1994.00                           ******  ******   ******      56.57
  YEARPLAC     1995.00                           ******  ******   ******      57.61
  YEARPLAC     1996.00                           ******  ******   ******      62.01
  YEARPLAC     1997.00                           ******  ******   ******      64.18
  YEARPLAC     1998.00                           ******  ******   ******      67.36
  YEARPLAC     1999.00                           ******  ******   ******      72.76
  YEARPLAC     2000.00                           ******  ******   ******      80.39
  YEARPLAC     2001.00                           ******  654000   ******      92.44

MAINTRT     Glass ionomer                        ******  ******   ******      59.13
  YEARPLAC     1991.00                           ******  ******   ******      48.82
  YEARPLAC     1992.00                           ******  ******   ******      51.01
  YEARPLAC     1993.00                           ******  ******   ******      54.40
  YEARPLAC     1994.00                           ******  ******   ******      52.46
  YEARPLAC     1995.00                           ******  ******   ******      52.86
  YEARPLAC     1996.00                           ******  893000   ******      54.32
  YEARPLAC     1997.00                           ******  803000   ******      58.63
  YEARPLAC     1998.00                           ******  711000   ******      62.08
  YEARPLAC     1999.00                           ******  614000   ******      65.91
  YEARPLAC     2000.00                           ******  384000   ******      77.83
  YEARPLAC     2001.00                           ******  142000   ******      90.81

Overall                                        ********44755000 78016000      63.55





TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2732.49                1.39     (  2729.77,   2735.22 )
 (Limited to   4015.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3032.00      2424.00      2034.00      1546.00
 Standard Error        .            .            .            .            .            .           4.74         3.99         3.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1205.00       951.00       676.00       435.00       244.00
 Standard Error       2.33         1.91         1.63         1.11          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2534.66                1.25     (  2532.22,   2537.11 )
 (Limited to   3651.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3125.00      2401.00      1909.00      1538.00
 Standard Error        .            .            .            .            .            .           5.68         3.90         2.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1216.00       842.00       611.00       385.00       188.00
 Standard Error       2.74         2.15         1.43         1.09          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2297.77                1.17     (  2295.47,   2300.07 )
 (Limited to   3282.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3140.00      2406.00      1825.00      1374.00
 Standard Error        .            .            .            .            .            .           6.19         4.77         3.33

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1057.00       721.00       491.00       299.00       174.00
 Standard Error       2.61         2.11         1.36          .85          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2108.99                1.03     (  2106.97,   2111.02 )
 (Limited to   2918.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2148.00      1799.00      1464.00
 Standard Error        .            .            .            .            .            .            .           3.35         2.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1160.00       862.00       626.00       417.00       207.00
 Standard Error       2.60         2.10         1.52         1.19          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1875.87                 .97     (  1873.97,   1877.77 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2112.00      1695.00      1330.00
 Standard Error        .            .            .            .            .            .            .           4.11         3.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       827.00       586.00       319.00       174.00
 Standard Error       2.34         1.93         1.90         1.24          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1711.74                 .81     (  1710.16,   1713.32 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2081.00      1684.00
 Standard Error        .            .            .            .            .            .            .            .           4.24

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1219.00       848.00       497.00       324.00       168.00
 Standard Error       3.96         3.07         1.97          .99          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1431.31                 .65     (  1430.04,   1432.57 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1610.00      1280.00
 Standard Error        .            .            .            .            .            .            .            .           3.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1010.00       757.00       580.00       358.00       179.00
 Standard Error       2.44         1.87         1.51         1.25          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1190.24                 .49     (  1189.27,   1191.21 )
 (Limited to   1456.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1014.00       782.00       536.00       362.00       180.00
 Standard Error       2.32         2.11         1.64         1.14          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       924.48                 .38     (   923.74,    925.22 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1041.00       711.00       448.00       275.00       166.00
 Standard Error        .           2.72         1.79          .97          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       639.74                 .23     (   639.30,    640.19 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         627.00       434.00       287.00       173.00
 Standard Error        .            .           1.46          .93          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       340.81                 .10     (   340.60,    341.01 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2154.80                4.14     (  2146.69,   2162.91 )
 (Limited to   4010.0 )
 Median:    1793.00                8.65     (  1776.04,   1809.96 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3780.00      3065.00      2176.00      1793.00      1472.00      1269.00       979.00       710.00
 Standard Error        .            .          21.18        16.52         8.65         7.62         5.82         6.55         4.38

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              574.00       492.00       354.00       224.00       145.00
 Standard Error       2.73         2.35         2.24         1.48          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2141.11                3.69     (  2133.87,   2148.35 )
 (Limited to   3646.0 )
 Median:    2286.00                5.28     (  2275.65,   2296.35 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2996.00      2491.00      2286.00      2106.00      1621.00      1197.00       961.00
 Standard Error        .            .            .           9.51         5.28         9.70        10.65         9.34         6.22

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              658.00       441.00       369.00       231.00       112.00
 Standard Error       5.31         2.71         2.00         1.91          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1743.34                3.64     (  1736.22,   1750.47 )
 (Limited to   3280.0 )
 Median:    1410.00                7.60     (  1395.10,   1424.90 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        2962.00      2436.00      1800.00      1410.00      1298.00       970.00       683.00       588.00
 Standard Error        .            .          16.49        14.61         7.60         5.57         8.05         4.86         2.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              459.00       376.00       258.00       167.00        76.00
 Standard Error       2.33         2.26         1.72         1.42          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1877.17                2.97     (  1871.35,   1882.99 )
 (Limited to   2909.0 )
 Median:    2439.00               11.16     (  2417.13,   2460.87 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2703.00      2439.00      1872.00      1582.00      1369.00       956.00
 Standard Error        .            .            .            .          11.16        11.61         7.07         7.74         8.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              615.00       518.00       364.00       199.00       143.00
 Standard Error       5.04         2.62         2.74         1.73          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1546.39                2.78     (  1540.95,   1551.84 )
 (Limited to   2553.0 )
 Median:    1739.00                9.78     (  1719.83,   1758.17 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2196.00      1922.00      1739.00      1366.00      1039.00       929.00       742.00
 Standard Error        .            .            .           7.99         9.78         9.73         6.21         4.40         4.01

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              612.00       496.00       400.00       308.00       137.00
 Standard Error       3.08         2.48         2.28         2.50          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1274.98                2.43     (  1270.22,   1279.75 )
 (Limited to   2184.0 )
 Median:    1216.00                7.64     (  1201.03,   1230.97 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        1951.00      1555.00      1216.00      1018.00       777.00       624.00       529.00
 Standard Error        .            .            .          10.41         7.64         6.11         5.49         2.92         2.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              423.00       338.00       202.00       161.00        91.00
 Standard Error       2.21         2.55         1.72          .86          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1201.24                2.11     (  1197.10,   1205.39 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1686.00       847.00       798.00       621.00
 Standard Error        .            .            .            .            .            .          10.98         3.34         4.56

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              476.00       322.00       190.00       161.00        64.00
 Standard Error       3.46         3.12         1.77         1.08          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1031.50                1.51     (  1028.55,   1034.45 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1310.00      1270.00       811.00       599.00
 Standard Error        .            .            .            .            .            .           7.77         7.71         4.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              490.00       394.00       209.00       182.00       127.00
 Standard Error       3.73         3.06         1.92          .66          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       842.90                1.13     (   840.69,    845.11 )
 (Limited to   1061.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         942.00       765.00
 Standard Error        .            .            .            .            .            .            .            .           4.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              593.00       532.00       363.00       233.00       121.00
 Standard Error       3.99         2.80         3.15         2.44          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       569.84                 .76     (   568.36,    571.32 )
 (Limited to   721.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         588.00       506.00
 Standard Error        .            .            .            .            .            .            .            .           1.34

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              483.00       367.00       235.00       140.00        96.00
 Standard Error       2.80         3.13         2.39         1.30          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       320.87                 .35     (   320.19,    321.55 )
 (Limited to   356.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2765.04                 .68     (  2763.71,   2766.37 )
 (Limited to   4016.0 )
 Median:    3978.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3978.00      3173.00      2586.00      2124.00      1651.00
 Standard Error        .            .            .            .            .           3.32         2.47         2.10         1.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1272.00       963.00       725.00       468.00       238.00
 Standard Error       1.35          .98          .78          .63          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2624.00                 .59     (  2622.84,   2625.17 )
 (Limited to   3651.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3354.00      2766.00      2187.00      1801.00
 Standard Error        .            .            .            .            .            .           2.73         2.15         1.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1418.00      1060.00       749.00       478.00       242.00
 Standard Error       1.45         1.19          .91          .65          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2388.61                 .54     (  2387.55,   2389.68 )
 (Limited to   3283.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        3241.00      2628.00      2080.00      1697.00
 Standard Error        .            .            .            .            .            .           2.76         2.15         1.66

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1314.00      1000.00       680.00       462.00       225.00
 Standard Error       1.41         1.16          .87          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2107.19                 .49     (  2106.24,   2108.15 )
 (Limited to   2919.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2728.00      2248.00      1836.00      1435.00
 Standard Error        .            .            .            .            .            .           2.15         1.87         1.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1154.00       867.00       602.00       373.00       189.00
 Standard Error       1.15         1.01          .80          .55          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1935.88                 .42     (  1935.06,   1936.71 )
 (Limited to   2555.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        2371.00      1960.00      1558.00
 Standard Error        .            .            .            .            .            .            .           1.95         1.79

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1171.00       931.00       647.00       438.00       218.00
 Standard Error       1.31         1.00          .83          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1699.09                 .36     (  1698.39,   1699.79 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1871.00      1517.00
 Standard Error        .            .            .            .            .            .            .            .           1.63

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1161.00       867.00       615.00       381.00       184.00
 Standard Error       1.38         1.06          .83          .61          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1465.13                 .29     (  1464.57,   1465.70 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1477.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1147.00       851.00       603.00       371.00       188.00
 Standard Error       1.35         1.06          .83          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1215.19                 .22     (  1214.76,   1215.62 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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             1127.00       839.00       607.00       385.00       189.00
 Standard Error        .           1.04          .80          .61          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       946.25                 .16     (   945.94,    946.56 )
 (Limited to   1094.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         859.00       570.00       358.00       174.00
 Standard Error        .            .            .92          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       662.02                 .09     (   661.85,    662.20 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         642.00       400.00       182.00
 Standard Error        .            .            .            .70          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       346.88                 .04     (   346.80,    346.95 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2528.21                 .95     (  2526.36,   2530.07 )
 (Limited to   4016.0 )
 Median:    2836.00                3.70     (  2828.74,   2843.26 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3508.00      2836.00      2384.00      1988.00      1582.00      1258.00
 Standard Error        .            .            .            .           3.70         2.72         2.48         2.17         1.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              953.00       751.00       550.00       358.00       182.00
 Standard Error       1.31          .97          .82          .63          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2379.19                 .84     (  2377.53,   2380.84 )
 (Limited to   3651.0 )
 Median:    2939.00                3.97     (  2931.22,   2946.78 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3566.00      2939.00      2331.00      1937.00      1581.00      1264.00
 Standard Error        .            .            .            .           3.97         3.19         2.32         2.00         1.60

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1008.00       771.00       558.00       371.00       182.00
 Standard Error       1.29         1.08          .84          .65          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2198.01                 .79     (  2196.47,   2199.56 )
 (Limited to   3285.0 )
 Median:    2866.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2866.00      2345.00      1916.00      1600.00      1236.00
 Standard Error        .            .            .            .            .           3.18         2.41         2.13         1.87

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              966.00       735.00       549.00       331.00       168.00
 Standard Error       1.37         1.04          .89          .69          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1978.88                 .70     (  1977.51,   1980.26 )
 (Limited to   2919.0 )
 Median:    2683.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2683.00      2208.00      1786.00      1429.00      1180.00
 Standard Error        .            .            .            .            .           3.03         2.54         1.90         1.57

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              898.00       669.00       496.00       320.00       155.00
 Standard Error       1.42         1.02          .78          .63          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1825.49                 .61     (  1824.29,   1826.69 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2337.00      1897.00      1551.00      1220.00
 Standard Error        .            .            .            .            .            .           2.68         2.21         1.83

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              956.00       696.00       513.00       345.00       176.00
 Standard Error       1.50         1.16          .82          .64          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1585.53                 .54     (  1584.46,   1586.59 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2024.00      1730.00      1351.00      1121.00
 Standard Error        .            .            .            .            .            .           2.40         2.09         1.50

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              889.00       689.00       466.00       266.00       131.00
 Standard Error       1.30         1.16         1.02          .68          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1373.71                 .44     (  1372.84,   1374.57 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1362.00      1068.00
 Standard Error        .            .            .            .            .            .            .            .           1.72

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              825.00       612.00       420.00       271.00       148.00
 Standard Error       1.37         1.10          .82          .55          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1144.06                 .35     (  1143.38,   1144.74 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1364.00      1050.00
 Standard Error        .            .            .            .            .            .            .            .           1.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              819.00       602.00       421.00       241.00       125.00
 Standard Error       1.41         1.13          .91          .62          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       907.88                 .25     (   907.39,    908.38 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              910.00       621.00       397.00       239.00       104.00
 Standard Error        .           1.52         1.00          .65          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       634.97                 .15     (   634.67,    635.26 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         639.00       421.00       246.00       119.00
 Standard Error        .            .           1.06          .68          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       340.58                 .07     (   340.45,    340.70 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2541.06                1.30     (  2538.51,   2543.60 )
 (Limited to   4015.0 )
 Median:    3013.00                5.67     (  3001.89,   3024.11 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3701.00      3013.00      2435.00      1874.00      1543.00      1222.00
 Standard Error        .            .            .            .           5.67         4.95         3.71         2.64         2.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              974.00       754.00       547.00       383.00       223.00
 Standard Error       1.69         1.37         1.06          .77          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2319.89                1.18     (  2317.58,   2322.20 )
 (Limited to   3651.0 )
 Median:    2827.00                5.63     (  2815.96,   2838.04 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3525.00      2827.00      2230.00      1782.00      1435.00      1106.00
 Standard Error        .            .            .            .           5.63         4.42         3.30         2.73         2.20

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              855.00       653.00       448.00       294.00       173.00
 Standard Error       1.59         1.30         1.02          .64          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2182.72                1.07     (  2180.63,   2184.81 )
 (Limited to   3283.0 )
 Median:    2981.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2981.00      2425.00      1964.00      1547.00      1210.00
 Standard Error        .            .            .            .            .           4.51         3.69         3.20         2.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              928.00       598.00       419.00       271.00       154.00
 Standard Error       2.20         1.66          .95          .63          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1986.85                 .86     (  1985.16,   1988.53 )
 (Limited to   2918.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2329.00      1909.00      1436.00      1168.00
 Standard Error        .            .            .            .            .            .           3.55         2.82         2.10

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              852.00       610.00       443.00       278.00       174.00
 Standard Error       1.87         1.23          .90          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1771.32                 .71     (  1769.92,   1772.71 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2100.00      1721.00      1380.00      1150.00
 Standard Error        .            .            .            .            .            .           2.74         2.08         1.84

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              848.00       609.00       428.00       252.00       161.00
 Standard Error       1.74         1.24          .92          .58          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1630.95                 .56     (  1629.85,   1632.05 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1943.00      1544.00      1231.00
 Standard Error        .            .            .            .            .            .            .           2.56         2.04

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              941.00       679.00       504.00       365.00       189.00
 Standard Error       1.77         1.28          .80          .67          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1390.27                 .45     (  1389.39,   1391.16 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1521.00      1132.00
 Standard Error        .            .            .            .            .            .            .            .           2.28

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              832.00       607.00       425.00       269.00       155.00
 Standard Error       1.62         1.15          .84          .56          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1155.32                 .32     (  1154.69,   1155.94 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1416.00      1091.00
 Standard Error        .            .            .            .            .            .            .            .           1.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              839.00       616.00       451.00       295.00       177.00
 Standard Error       1.39         1.04          .76          .54          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       901.82                 .22     (   901.38,    902.26 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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              824.00       576.00       392.00       223.00       133.00
 Standard Error        .           1.13          .82          .50          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       633.81                 .13     (   633.55,    634.07 )
 (Limited to   728.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         599.00       393.00       239.00       135.00
 Standard Error        .            .            .83          .50          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       338.64                 .06     (   338.53,    338.75 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2375.86                1.35     (  2373.22,   2378.50 )
 (Limited to   4014.0 )
 Median:    2449.00                4.63     (  2439.93,   2458.07 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3798.00      3023.00      2449.00      1982.00      1593.00      1262.00      1001.00
 Standard Error        .            .            .           6.09         4.63         3.85         3.11         2.44         1.81

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              797.00       587.00       447.00       271.00       175.00
 Standard Error       1.49         1.15          .91          .65          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2325.69                1.13     (  2323.47,   2327.90 )
 (Limited to   3651.0 )
 Median:    2674.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2674.00      2206.00      1806.00      1464.00      1165.00
 Standard Error        .            .            .            .            .           3.64         3.00         2.48         2.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              896.00       674.00       480.00       335.00       182.00
 Standard Error       1.67         1.29          .93          .66          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2152.63                 .94     (  2150.78,   2154.47 )
 (Limited to   3283.0 )
 Median:    2755.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2755.00      2251.00      1864.00      1431.00      1141.00
 Standard Error        .            .            .            .            .           3.47         3.11         2.62         1.92

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              868.00       630.00       434.00       277.00       168.00
 Standard Error       1.62         1.24          .90          .55          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1963.29                 .79     (  1961.73,   1964.85 )
 (Limited to   2918.0 )
 Median:    2735.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2735.00      2220.00      1762.00      1419.00      1148.00
 Standard Error        .            .            .            .            .           3.66         2.93         2.14         1.80

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              870.00       606.00       393.00       238.00       146.00
 Standard Error       1.66         1.32          .90          .52          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1787.71                 .69     (  1786.36,   1789.05 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2197.00      1776.00      1420.00      1113.00
 Standard Error        .            .            .            .            .            .           2.88         2.36         1.78

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              893.00       665.00       475.00       291.00       162.00
 Standard Error       1.41         1.20          .94          .66          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1541.90                 .63     (  1540.66,   1543.14 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1961.00      1574.00      1241.00       965.00
 Standard Error        .            .            .            .            .            .           2.89         2.32         1.85

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              721.00       553.00       399.00       241.00       133.00
 Standard Error       1.39          .99          .85          .60          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1339.48                 .51     (  1338.48,   1340.49 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1588.00      1199.00       911.00
 Standard Error        .            .            .            .            .            .            .           2.59         1.70

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              727.00       533.00       389.00       238.00       153.00
 Standard Error       1.30         1.05          .82          .53          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1093.38                 .39     (  1092.62,   1094.13 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1352.00      1095.00       803.00
 Standard Error        .            .            .            .            .            .            .           2.02         1.62

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              633.00       462.00       350.00       216.00       138.00
 Standard Error       1.13          .82          .66          .47          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       887.35                 .26     (   886.83,    887.86 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .         959.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              736.00       529.00       380.00       245.00       156.00
 Standard Error       1.40         1.10          .77          .51          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       609.36                 .17     (   609.02,    609.69 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              594.00       448.00       324.00       189.00        85.00
 Standard Error        .            .83          .70          .54          .



TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       334.53                 .08     (   334.38,    334.68 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      2.00   Premolar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam               ******  ******   ******      68.75
  YEARPLAC     1991.00                           ******  525000   829000      61.23
  YEARPLAC     1992.00                           ******  519000   825000      61.38
  YEARPLAC     1993.00                           ******  469000   778000      62.39
  YEARPLAC     1994.00                           ******  417000   704000      62.80
  YEARPLAC     1995.00                           976000  343000   633000      64.86
  YEARPLAC     1996.00                           934000  277000   657000      70.34
  YEARPLAC     1997.00                           918000  286000   632000      68.85
  YEARPLAC     1998.00                           881000  236000   645000      73.21
  YEARPLAC     1999.00                           746000  164000   582000      78.02
  YEARPLAC     2000.00                           716000  127000   589000      82.26
  YEARPLAC     2001.00                           660000   42000   618000      93.64

MAINTRT     Two surface amalgam, not MO or DO    ******  639000   763000      54.42
  YEARPLAC     1991.00                           158000   91000    67000      42.41
  YEARPLAC     1992.00                           164000   84000    80000      48.78
  YEARPLAC     1993.00                           139000   80000    59000      42.45
  YEARPLAC     1994.00                           155000   72000    83000      53.55
  YEARPLAC     1995.00                           127000   68000    59000      46.46
  YEARPLAC     1996.00                           127000   71000    56000      44.09
  YEARPLAC     1997.00                           121000   52000    69000      57.02
  YEARPLAC     1998.00                           134000   53000    81000      60.45
  YEARPLAC     1999.00                            92000   29000    63000      68.48
  YEARPLAC     2000.00                            96000   30000    66000      68.75
  YEARPLAC     2001.00                            89000    9000    80000      89.89

MAINTRT     MO or DO amalgam                     ******  ******   ******      71.07
  YEARPLAC     1991.00                           ******  ******   ******      61.13
  YEARPLAC     1992.00                           ******  ******   ******      64.11
  YEARPLAC     1993.00                           ******  ******   ******      64.31
  YEARPLAC     1994.00                           ******  ******   ******      62.75
  YEARPLAC     1995.00                           ******  ******   ******      66.55
  YEARPLAC     1996.00                           ******  ******   ******      68.29
  YEARPLAC     1997.00                           ******  ******   ******      71.68
  YEARPLAC     1998.00                           ******  ******   ******      75.40
  YEARPLAC     1999.00                           ******  761000   ******      80.63
  YEARPLAC     2000.00                           ******  482000   ******      87.44
  YEARPLAC     2001.00                           ******  163000   ******      95.34

MAINTRT     MOD amalgam                          ******  ******   ******      64.50
  YEARPLAC     1991.00                           ******  ******   ******      54.18
  YEARPLAC     1992.00                           ******  ******   ******      55.64
  YEARPLAC     1993.00                           ******  ******   ******      57.19
  YEARPLAC     1994.00                           ******  ******   ******      56.92
  YEARPLAC     1995.00                           ******  955000   ******      61.05
  YEARPLAC     1996.00                           ******  861000   ******      60.97
  YEARPLAC     1997.00                           ******  762000   ******      65.46
  YEARPLAC     1998.00                           ******  631000   ******      69.04
  YEARPLAC     1999.00                           ******  445000   ******      76.23
  YEARPLAC     2000.00                           ******  325000   ******      81.96
  YEARPLAC     2001.00                           ******  108000   ******      93.52

MAINTRT     Composite resin                      ******  ******   ******      68.63
  YEARPLAC     1991.00                           ******  726000   884000      54.91
  YEARPLAC     1992.00                           ******  732000   902000      55.20
  YEARPLAC     1993.00                           ******  653000   902000      58.01
  YEARPLAC     1994.00                           ******  749000   ******      58.04
  YEARPLAC     1995.00                           ******  789000   ******      58.69
  YEARPLAC     1996.00                           ******  710000   ******      64.29
  YEARPLAC     1997.00                           ******  683000   ******      67.02
  YEARPLAC     1998.00                           ******  717000   ******      69.40
  YEARPLAC     1999.00                           ******  591000   ******      75.28
  YEARPLAC     2000.00                           ******  426000   ******      81.72
  YEARPLAC     2001.00                           ******  176000   ******      93.07



MAINTRT     Glass ionomer                        ******  ******   ******      64.37
  YEARPLAC     1991.00                           ******  760000   795000      51.13
  YEARPLAC     1992.00                           ******  773000   ******      56.40
  YEARPLAC     1993.00                           ******  863000   ******      57.34
  YEARPLAC     1994.00                           ******  898000   ******      57.78
  YEARPLAC     1995.00                           ******  816000   ******      60.02
  YEARPLAC     1996.00                           ******  697000   ******      60.06
  YEARPLAC     1997.00                           ******  624000   ******      63.76
  YEARPLAC     1998.00                           ******  636000   ******      65.09
  YEARPLAC     1999.00                           ******  480000   ******      72.52
  YEARPLAC     2000.00                           ******  394000   ******      77.37
  YEARPLAC     2001.00                           ******  125000   ******      91.87

Overall                                        ********41843000 88846000      67.98





TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2959.70                 .56     (  2958.60,   2960.79 )
 (Limited to   4016.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3330.00      2680.00      2123.00
 Standard Error        .            .            .            .            .            .            .           2.39         1.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1669.00      1299.00       929.00       627.00       350.00
 Standard Error       1.42         1.16          .92          .65          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2755.99                 .50     (  2755.02,   2756.97 )
 (Limited to   3651.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        3514.00      2783.00      2170.00
 Standard Error        .            .            .            .            .            .            .           2.65         2.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1659.00      1230.00       866.00       574.00       329.00
 Standard Error       1.62         1.24          .89          .60          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2515.72                 .46     (  2514.81,   2516.63 )
 (Limited to   3286.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2636.00      2103.00
 Standard Error        .            .            .            .            .            .            .            .           1.99

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1619.00      1210.00       861.00       547.00       262.00
 Standard Error       1.62         1.24          .95          .71          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2274.09                 .41     (  2273.29,   2274.89 )
 (Limited to   2919.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        2582.00      2042.00
 Standard Error        .            .            .            .            .            .            .            .           2.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1554.00      1157.00       812.00       540.00       252.00
 Standard Error       1.63         1.24          .90          .68          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2051.45                 .37     (  2050.73,   2052.17 )
 (Limited to   2555.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        2046.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1592.00      1177.00       862.00       565.00       279.00
 Standard Error       1.75         1.33          .97          .76          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1822.02                 .30     (  1821.43,   1822.62 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1673.00      1232.00       903.00       583.00       310.00
 Standard Error       1.84         1.45         1.07          .80          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1574.72                 .23     (  1574.27,   1575.17 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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                 .        1359.00       936.00       614.00       316.00
 Standard Error        .            .           1.22          .83          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1280.73                 .18     (  1280.38,   1281.08 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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                 .        1242.00       868.00       563.00       261.00
 Standard Error        .            .           1.14          .84          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       984.28                 .13     (   984.03,    984.52 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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                 .            .         862.00       512.00       278.00
 Standard Error        .            .            .            .84          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       681.52                 .07     (   681.38,    681.67 )
 (Limited to   730.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Single surface amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       350.45                 .03     (   350.38,    350.51 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2670.95                1.27     (  2668.47,   2673.43 )
 (Limited to   4015.0 )
 Median:    3709.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3709.00      2938.00      2264.00      1799.00      1421.00
 Standard Error        .            .            .            .            .           6.23         4.77         3.36         2.88

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1031.00       820.00       634.00       385.00       190.00
 Standard Error       2.10         1.26         1.23         1.00          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2489.43                1.11     (  2487.26,   2491.61 )
 (Limited to   3651.0 )
 Median:    3491.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3491.00      2753.00      2254.00      1913.00      1484.00
 Standard Error        .            .            .            .            .           5.24         3.48         3.11         3.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1067.00       829.00       635.00       408.00       199.00
 Standard Error       2.28         1.38         1.17         1.01          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2291.73                1.00     (  2289.77,   2293.68 )
 (Limited to   3285.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2740.00      2185.00      1765.00      1471.00
 Standard Error        .            .            .            .            .            .           4.11         2.88         2.48

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1117.00       864.00       645.00       411.00       197.00
 Standard Error       2.17         1.54         1.30         1.05          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2064.90                 .92     (  2063.10,   2066.70 )
 (Limited to   2918.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2787.00      2176.00      1672.00      1256.00
 Standard Error        .            .            .            .            .            .           4.86         3.81         2.77

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              965.00       722.00       501.00       354.00       163.00
 Standard Error       1.96         1.54         1.08          .82          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1874.55                 .82     (  1872.94,   1876.15 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2534.00      2124.00      1666.00      1343.00
 Standard Error        .            .            .            .            .            .           4.03         3.51         2.69

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1023.00       775.00       568.00       364.00       193.00
 Standard Error       2.22         1.60         1.29          .95          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1676.25                 .70     (  1674.87,   1677.62 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1777.00      1361.00
 Standard Error        .            .            .            .            .            .            .            .           3.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1086.00       804.00       560.00       362.00       182.00
 Standard Error       2.28         1.95         1.43         1.00          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1459.63                 .54     (  1458.57,   1460.69 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1686.00      1433.00
 Standard Error        .            .            .            .            .            .            .            .           2.67

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1087.00       853.00       631.00       420.00       230.00
 Standard Error       2.39         1.73         1.44         1.11          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1200.18                 .44     (  1199.32,   1201.03 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1079.00       742.00       535.00       353.00       175.00
 Standard Error        .           2.11         1.33         1.02          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       930.26                 .31     (   929.65,    930.87 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              950.00       759.00       573.00       325.00       175.00
 Standard Error        .           1.57         1.56         1.17          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       656.88                 .18     (   656.54,    657.23 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         598.00       362.00       174.00
 Standard Error        .            .            .           1.21          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

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




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       348.60                 .07     (   348.46,    348.74 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2604.47                 .51     (  2603.47,   2605.48 )
 (Limited to   4016.0 )
 Median:    3094.00                2.39     (  3089.32,   3098.68 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3858.00      3094.00      2545.00      2131.00      1715.00      1342.00
 Standard Error        .            .            .            .           2.39         1.72         1.43         1.30          .98

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1087.00       858.00       635.00       427.00       217.00
 Standard Error        .70          .60          .50          .40          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2475.13                 .45     (  2474.24,   2476.02 )
 (Limited to   3651.0 )
 Median:    3277.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3277.00      2692.00      2234.00      1815.00      1449.00
 Standard Error        .            .            .            .            .           1.85         1.50         1.28         1.06

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1132.00       865.00       636.00       429.00       220.00
 Standard Error        .84          .65          .50          .39          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2245.09                 .41     (  2244.29,   2245.89 )
 (Limited to   3285.0 )
 Median:    3057.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3057.00      2522.00      2078.00      1679.00      1337.00
 Standard Error        .            .            .            .            .           1.74         1.44         1.22         1.00

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1037.00       788.00       581.00       373.00       184.00
 Standard Error        .79          .60          .48          .38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2062.09                 .37     (  2061.37,   2062.81 )
 (Limited to   2918.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2584.00      2093.00      1666.00      1325.00
 Standard Error        .            .            .            .            .            .           1.62         1.30         1.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1027.00       781.00       553.00       365.00       180.00
 Standard Error        .81          .64          .49          .36          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1867.58                 .32     (  1866.95,   1868.20 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2524.00      2079.00      1670.00      1357.00
 Standard Error        .            .            .            .            .            .           1.52         1.25         1.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1043.00       781.00       559.00       363.00       182.00
 Standard Error        .88          .68          .51          .38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1650.19                 .27     (  1649.66,   1650.72 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1988.00      1600.00      1311.00
 Standard Error        .            .            .            .            .            .            .           1.19          .96

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1030.00       782.00       540.00       356.00       181.00
 Standard Error        .83          .70          .53          .37          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1420.41                 .22     (  1419.98,   1420.83 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1602.00      1260.00
 Standard Error        .            .            .            .            .            .            .            .           1.05

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              971.00       733.00       510.00       325.00       172.00
 Standard Error        .82          .65          .51          .35          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1195.74                 .16     (  1195.42,   1196.06 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1352.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value             1038.00       769.00       534.00       350.00       167.00
 Standard Error        .92          .73          .53          .38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       933.00                 .12     (   932.78,    933.23 )
 (Limited to   1094.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               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             1035.00       744.00       523.00       338.00       168.00
 Standard Error        .            .76          .53          .38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       649.40                 .07     (   649.27,    649.54 )
 (Limited to   728.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         525.00       309.00       144.00
 Standard Error        .            .            .            .41          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MO or DO amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       342.61                 .03     (   342.55,    342.67 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2405.08                 .88     (  2403.36,   2406.80 )
 (Limited to   4016.0 )
 Median:    2432.00                2.78     (  2426.55,   2437.45 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3709.00      2962.00      2432.00      2030.00      1697.00      1360.00      1109.00
 Standard Error        .            .            .           3.84         2.78         2.15         1.90         1.60         1.19

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              902.00       669.00       494.00       356.00       187.00
 Standard Error       1.06          .89          .60          .49          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2297.17                 .76     (  2295.67,   2298.66 )
 (Limited to   3651.0 )
 Median:    2648.00                3.07     (  2641.99,   2654.01 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3177.00      2648.00      2118.00      1750.00      1411.00      1137.00
 Standard Error        .            .            .            .           3.07         2.55         1.94         1.61         1.26

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              909.00       689.00       504.00       321.00       171.00
 Standard Error       1.05          .87          .69          .52          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2121.57                 .70     (  2120.19,   2122.95 )
 (Limited to   3284.0 )
 Median:    2650.00                3.23     (  2643.67,   2656.33 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3196.00      2650.00      2104.00      1674.00      1330.00      1091.00
 Standard Error        .            .            .            .           3.23         2.83         2.18         1.58         1.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              881.00       667.00       480.00       291.00       163.00
 Standard Error       1.01          .88          .72          .51          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1956.62                 .62     (  1955.40,   1957.83 )
 (Limited to   2918.0 )
 Median:    2546.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2546.00      2090.00      1728.00      1414.00      1119.00
 Standard Error        .            .            .            .            .           2.42         1.94         1.69         1.42

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              873.00       650.00       463.00       294.00       164.00
 Standard Error       1.14          .91          .70          .48          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1770.32                 .55     (  1769.25,   1771.39 )
 (Limited to   2554.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2088.00      1700.00      1369.00      1087.00
 Standard Error        .            .            .            .            .            .           2.11         1.73         1.43

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              835.00       608.00       458.00       293.00       153.00
 Standard Error       1.20          .86          .64          .51          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1551.93                 .47     (  1551.01,   1552.85 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        2009.00      1616.00      1263.00      1021.00
 Standard Error        .            .            .            .            .            .           2.18         1.69         1.35

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              765.00       594.00       408.00       237.00       108.00
 Standard Error       1.08          .83          .72          .50          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1382.94                 .37     (  1382.22,   1383.66 )
 (Limited to   1824.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .        1394.00      1083.00
 Standard Error        .            .            .            .            .            .            .            .           1.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              861.00       635.00       461.00       294.00       152.00
 Standard Error       1.14          .93          .70          .53          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1168.80                 .28     (  1168.26,   1169.35 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .            .        1168.00
 Standard Error        .            .            .            .            .            .            .            .            .

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              900.00       685.00       475.00       313.00       160.00
 Standard Error       1.27         1.01          .79          .55          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       907.20                 .20     (   906.80,    907.59 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              849.00       613.00       429.00       268.00       146.00
 Standard Error        .           1.02          .74          .51          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       640.67                 .12     (   640.43,    640.90 )
 (Limited to   728.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         670.00       422.00       289.00       161.00
 Standard Error        .            .            .84          .48          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = MOD amalgam
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       341.16                 .05     (   341.05,    341.26 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2616.78                3.26     (  2610.40,   2623.17 )
 (Limited to   4015.0 )
 Median:    3560.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        3560.00      2743.00      2321.00      1701.00      1158.00
 Standard Error        .            .            .            .            .          15.46        10.51        11.50         7.45

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              913.00       664.00       448.00       332.00       203.00
 Standard Error       4.14         3.61         2.33         1.39          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2262.18                2.60     (  2257.09,   2267.27 )
 (Limited to   3651.0 )
 Median:    2625.00               14.09     (  2597.38,   2652.62 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        3367.00      2625.00      1846.00      1515.00      1287.00      1098.00
 Standard Error        .            .            .            .          14.09        10.54         5.16         3.51         2.97

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              917.00       649.00       484.00       245.00       179.00
 Standard Error       3.48         3.03         2.49         1.48          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2076.59                2.11     (  2072.46,   2080.72 )
 (Limited to   3283.0 )
 Median:    2477.00                7.16     (  2462.97,   2491.03 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2836.00      2477.00      1996.00      1590.00      1284.00       979.00
 Standard Error        .            .            .            .           7.16         7.60         6.19         4.73         3.65

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              836.00       615.00       423.00       262.00       184.00
 Standard Error       2.57         2.75         2.08         1.13          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1914.15                1.54     (  1911.13,   1917.17 )
 (Limited to   2917.0 )
 Median:    2291.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        2291.00      1836.00      1465.00      1263.00      1067.00
 Standard Error        .            .            .            .            .           5.99         4.12         2.74         2.36

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              891.00       762.00       531.00       335.00       155.00
 Standard Error       1.89         2.02         2.07         1.50          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1730.99                1.21     (  1728.62,   1733.36 )
 (Limited to   2553.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1964.00      1595.00      1135.00       950.00
 Standard Error        .            .            .            .            .            .           5.19         3.91         2.16

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              755.00       569.00       394.00       256.00       140.00
 Standard Error       2.03         1.77         1.35          .92          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1519.14                 .91     (  1517.36,   1520.91 )
 (Limited to   2190.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1810.00      1482.00      1150.00       890.00
 Standard Error        .            .            .            .            .            .           3.64         3.16         2.15

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              730.00       550.00       382.00       218.00       101.00
 Standard Error       1.65         1.50         1.29          .92          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1350.10                 .67     (  1348.79,   1351.41 )
 (Limited to   1825.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1574.00      1240.00       970.00
 Standard Error        .            .            .            .            .            .            .           3.09         2.11

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              796.00       599.00       396.00       245.00       161.00
 Standard Error       1.72         1.63         1.27          .70          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1100.00                 .46     (  1099.11,   1100.90 )
 (Limited to   1458.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .        1416.00      1106.00       872.00
 Standard Error        .            .            .            .            .            .            .           2.22         1.89

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              653.00       485.00       363.00       222.00       119.00
 Standard Error       1.51         1.08          .86          .62          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       869.43                 .32     (   868.80,    870.05 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              642.00       455.00       343.00       210.00       105.00
 Standard Error       1.64         1.04          .75          .62          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       626.00                 .18     (   625.64,    626.36 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .         545.00       349.00       215.00       117.00
 Standard Error        .            .           1.03          .60          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Composite resin
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       332.31                 .08     (   332.15,    332.48 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

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


TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1991.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2166.82                1.50     (  2163.88,   2169.75 )
 (Limited to   4015.0 )
 Median:    1925.00                3.62     (  1917.90,   1932.10 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .        3486.00      2677.00      2313.00      1925.00      1584.00      1339.00      1111.00       852.00
 Standard Error        .            .           5.93         3.77         3.62         2.82         2.21         2.18         2.03

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              632.00       497.00       370.00       239.00       141.00
 Standard Error       1.43          .95          .81          .62          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1992.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      2027.86                1.25     (  2025.41,   2030.31 )
 (Limited to   3650.0 )
 Median:    1792.00                2.87     (  1786.38,   1797.62 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        2874.00      2171.00      1792.00      1535.00      1274.00      1018.00       840.00
 Standard Error        .            .            .           4.89         2.87         2.32         2.23         1.81         1.46

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              644.00       511.00       355.00       216.00       114.00
 Standard Error       1.21          .97          .87          .60          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1993.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1938.89                1.04     (  1936.85,   1940.93 )
 (Limited to   3283.0 )
 Median:    2108.00                3.88     (  2100.39,   2115.61 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .        3039.00      2563.00      2108.00      1631.00      1295.00      1009.00       799.00
 Standard Error        .            .            .           4.00         3.88         3.31         2.47         1.85         1.40

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              619.00       449.00       302.00       191.00       101.00
 Standard Error       1.18          .96          .69          .46          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1994.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1775.49                 .89     (  1773.74,   1777.24 )
 (Limited to   2918.0 )
 Median:    1920.00                3.99     (  1912.17,   1927.83 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2583.00      1920.00      1588.00      1253.00       986.00       766.00
 Standard Error        .            .            .            .           3.99         2.65         2.33         1.78         1.44

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              564.00       414.00       299.00       191.00        94.00
 Standard Error       1.14          .80          .58          .45          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1995.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1553.41                 .75     (  1551.93,   1554.88 )
 (Limited to   2555.0 )
 Median:    1720.00                2.90     (  1714.32,   1725.68 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        2093.00      1720.00      1369.00      1090.00       878.00       686.00
 Standard Error        .            .            .            .           2.90         2.42         1.84         1.46         1.18

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              536.00       413.00       301.00       184.00        95.00
 Standard Error        .88          .70          .59          .45          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1996.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1359.55                 .63     (  1358.31,   1360.79 )
 (Limited to   2189.0 )
 Median:    1534.00                2.61     (  1528.89,   1539.11 )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .        1933.00      1534.00      1258.00      1003.00       832.00       618.00
 Standard Error        .            .            .            .           2.61         2.05         1.58         1.37         1.12

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              501.00       376.00       254.00       164.00        82.00
 Standard Error        .77          .72          .54          .38          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1997.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1203.04                 .51     (  1202.04,   1204.03 )
 (Limited to   1824.0 )
 Median:    1551.00                 .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .        1551.00      1273.00      1026.00       815.00       646.00
 Standard Error        .            .            .            .            .           1.95         1.67         1.33         1.09

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              488.00       371.00       239.00       181.00        84.00
 Standard Error        .86          .71          .48          .33          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1998.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:      1022.83                 .39     (  1022.07,   1023.59 )
 (Limited to   1459.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .        1307.00       995.00       813.00       640.00
 Standard Error        .            .            .            .            .            .           1.77         1.23         1.08

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              488.00       375.00       257.00       180.00        72.00
 Standard Error        .83          .66          .50          .39          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 1999.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       835.86                 .26     (   835.35,    836.37 )
 (Limited to   1092.0 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

 Value                 .            .            .            .            .            .            .         871.00       706.00
 Standard Error        .            .            .            .            .            .            .            .           1.02

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              551.00       405.00       273.00       174.00        70.00
 Standard Error        .91          .76          .56          .42          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2000.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       592.16                 .16     (   591.84,    592.47 )
 (Limited to   727.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value              482.00       368.00       249.00       177.00        84.00
 Standard Error        .82          .64          .47          .34          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

 Strata MAINTRT = Glass ionomer
 Factor YEARPLAC = 2001.00




          Survival Time    Standard Error   95% Confidence Interval

 Mean:       325.57                 .07     (   325.42,    325.71 )
 (Limited to   363.00 )
 Median:        .                   .       (      .  ,       .   )



                                                               Percentiles

                     25.00        35.00        40.00        45.00        50.00        55.00        60.00        65.00        70.00

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

                                                               Percentiles

                     75.00        80.00        85.00        90.00        95.00

 Value                 .            .         273.00       162.00        70.00
 Standard Error        .            .            .            .47          .



TOOTHTYP:      3.00   Molar
 Survival Analysis for TIME     Time to reintervention

                                                  Total  Number   Number    Percent
                                                         Events  Censored  Censored

MAINTRT     Single surface amalgam               ******  ******   ******      76.49
  YEARPLAC     1991.00                           ******  ******   ******      67.63
  YEARPLAC     1992.00                           ******  ******   ******      68.89
  YEARPLAC     1993.00                           ******  ******   ******      69.51
  YEARPLAC     1994.00                           ******  ******   ******      70.71
  YEARPLAC     1995.00                           ******  ******   ******      73.28
  YEARPLAC     1996.00                           ******  ******   ******      76.51
  YEARPLAC     1997.00                           ******  ******   ******      80.15
  YEARPLAC     1998.00                           ******  893000   ******      82.13
  YEARPLAC     1999.00                           ******  679000   ******      85.40
  YEARPLAC     2000.00                           ******  408000   ******      90.45
  YEARPLAC     2001.00                           ******  143000   ******      96.41

MAINTRT     Two surface amalgam, not MO or DO    ******  ******   ******      69.03
  YEARPLAC     1991.00                           ******  688000   ******      60.07
  YEARPLAC     1992.00                           ******  685000   ******      59.82
  YEARPLAC     1993.00                           ******  644000   994000      60.68
  YEARPLAC     1994.00                           ******  573000   961000      62.65
  YEARPLAC     1995.00                           ******  479000   873000      64.57
  YEARPLAC     1996.00                           ******  400000   858000      68.20
  YEARPLAC     1997.00                           ******  358000   854000      70.46
  YEARPLAC     1998.00                           ******  289000   867000      75.00
  YEARPLAC     1999.00                           ******  232000   810000      77.74
  YEARPLAC     2000.00                           ******  143000   905000      86.35
  YEARPLAC     2001.00                           957000   39000   918000      95.92

MAINTRT     MO or DO amalgam                     ******  ******   ******      68.30
  YEARPLAC     1991.00                           ******  ******   ******      56.63
  YEARPLAC     1992.00                           ******  ******   ******      59.08
  YEARPLAC     1993.00                           ******  ******   ******      58.90
  YEARPLAC     1994.00                           ******  ******   ******      61.21
  YEARPLAC     1995.00                           ******  ******   ******      62.99
  YEARPLAC     1996.00                           ******  ******   ******      65.23
  YEARPLAC     1997.00                           ******  ******   ******      68.49
  YEARPLAC     1998.00                           ******  ******   ******      73.79
  YEARPLAC     1999.00                           ******  ******   ******      78.40
  YEARPLAC     2000.00                           ******  ******   ******      84.91
  YEARPLAC     2001.00                           ******  429000   ******      94.21

MAINTRT     MOD amalgam                          ******  ******   ******      64.39
  YEARPLAC     1991.00                           ******  ******   ******      51.24
  YEARPLAC     1992.00                           ******  ******   ******      53.09
  YEARPLAC     1993.00                           ******  ******   ******      54.76
  YEARPLAC     1994.00                           ******  ******   ******      56.65
  YEARPLAC     1995.00                           ******  ******   ******      58.94
  YEARPLAC     1996.00                           ******  ******   ******      60.53
  YEARPLAC     1997.00                           ******  ******   ******      65.86
  YEARPLAC     1998.00                           ******  865000   ******      70.85
  YEARPLAC     1999.00                           ******  698000   ******      75.35
  YEARPLAC     2000.00                           ******  461000   ******      82.77
  YEARPLAC     2001.00                           ******  157000   ******      93.83

MAINTRT     Composite resin                      ******  ******   ******      69.25
  YEARPLAC     1991.00                           267000  112000   155000      58.05
  YEARPLAC     1992.00                           346000  155000   191000      55.20
  YEARPLAC     1993.00                           391000  184000   207000      52.94
  YEARPLAC     1994.00                           550000  244000   306000      55.64
  YEARPLAC     1995.00                           691000  288000   403000      58.32
  YEARPLAC     1996.00                           861000  356000   505000      58.65
  YEARPLAC     1997.00                           978000  356000   622000      63.60
  YEARPLAC     1998.00                           ******  444000   827000      65.07
  YEARPLAC     1999.00                           ******  380000   935000      71.10
  YEARPLAC     2000.00                           ******  253000   ******      80.75
  YEARPLAC     2001.00                           ******  122000   ******      91.46



MAINTRT     Glass ionomer                        ******  ******   ******      59.06
  YEARPLAC     1991.00                           ******  672000   583000      46.45
  YEARPLAC     1992.00                           ******  784000   689000      46.78
  YEARPLAC     1993.00                           ******  871000   877000      50.17
  YEARPLAC     1994.00                           ******  891000   957000      51.79
  YEARPLAC     1995.00                           ******  949000   950000      50.03
  YEARPLAC     1996.00                           ******  948000   954000      50.16
  YEARPLAC     1997.00                           ******  907000   ******      53.65
  YEARPLAC     1998.00                           ******  829000   ******      58.47
  YEARPLAC     1999.00                           ******  718000   ******      66.43
  YEARPLAC     2000.00                           ******  552000   ******      73.86
  YEARPLAC     2001.00                           ******  218000   ******      89.32

Overall                                        ********73349000 ********      69.17



>Warning # 3211
>On at least one case, the value of the weight variable was zero, negative,
>or missing.  Such cases are invisible to statistical procedures and graphs
>which need positively weighted cases, but remain on the file and are
>processed by non-statistical facilities such as LIST and SAVE.