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Table 1 The empirical type I error rates of the tests at the significance level of 0.05 when the survival times have the same uniform, exponential, or log-normal distributions with sample sizes n 1 = 100, n 2 = 150, n 3 = 150, n 4 = 200 (simulation study with 10,000 replicates for each situation)

From: Comparing survival curves based on medians

Distributions and parameters Censoring rate BC TJ New
Uniform distribution
θ = (10,10,10,10)
a = (4,4,4,4)
c = (2,2,2,2)
0 0.053 0.049 0.051
0.1 0.052 0.070 0.047
0.2 0.057 0.092 0.049
0.3 0.057 0.114 0.047
Exponential distribution
θ = (10,10,10,10)
a = (0.1,0.1,0.1,0.1)
0 0.050 0.047 0.047
0.1 0.052 0.056 0.050
0.2 0.053 0.068 0.050
0.3 0.051 0.083 0.047
Log-normal distribution
θ = (log(10), log(10), log(10), log(10))
a = (0.3,0.3,0.3,0.3)
0 0.057 0.052 0.054
0.1 0.055 0.065 0.050
0.2 0.054 0.082 0.050
0.3 0.054 0.104 0.050