From: Using the geometric average hazard ratio in sample size calculation for time-to-event data with composite endpoints
10%
20%
30%
40%
50%
60%
70%
80%
90%
Frank
0.62
0.66
0.71
0.76
0.80
0.81
0.84
0.87
0.90
Clayton
0.60
0.65
0.69
0.73
0.79
0.82
0.85
0.88
Gumbel
0.70