Research Article

Pairwise Multiple Comparison Adjustment Procedure for Survival Functions with Right-Censored Data

Table 4

Power of the proposed and conventional adjustment procedures for and and log-normal survival distribution with different and .

ParametersTestsProposed and conventional adjustment techniques
UnadjustedBonferroniSchefféSidakSMMTukeyProposed

(0.5, 0, 0, 0)Fleming0.8710.9780.9850.9780.9780.9760.976
Log-rank0.9010.9950.9960.9950.9950.9910.991
ModPeto0.8710.9780.9850.9780.9780.9760.976
Peto0.8710.9780.9850.9780.9780.9760.976
Tarone0.8800.9790.9890.9780.9780.9730.973
Wilcoxon0.8690.9780.9850.9770.9770.9730.973

(0.5, 0.5, 0, 0)Fleming0.9220.9870.9920.9870.9870.9840.984
Log-rank0.9230.9880.9950.9880.9880.9850.985
ModPeto0.9230.9870.9920.9870.9870.9840.984
Peto0.9230.9870.9920.9870.9870.9840.984
Tarone0.9280.9870.9940.9870.9870.9860.986
Wilcoxon0.9310.9860.9920.9860.9860.9830.983

(0.3, 0, 0, −0.3)Fleming0.9620.9820.9800.9820.9820.9840.984
Log-rank0.9470.9400.9060.9400.9400.9490.949
ModPeto0.9620.9820.9800.9820.9820.9840.984
Peto0.9620.9820.9800.9820.9820.9840.984
Tarone0.9580.9790.9740.9790.9790.9800.980
Wilcoxon0.9620.9850.9790.9850.9850.9840.984

(0.5, 0.3, −0.3, −0.5)Fleming0.7160.3320.2450.3360.3360.3730.373
Log-rank0.5510.2600.1990.2620.2620.2930.293
ModPeto0.7160.3290.2440.3370.3370.3710.371
Peto0.7160.3320.2450.3370.3370.3710.371
Tarone0.7120.3450.2780.3470.3470.3950.395
Wilcoxon0.6980.2660.1910.2710.2710.3040.304