Table 3.

Performance assessment on the estimated hazard ratios when the actual median survival times in treatment A is 91 days, and the actual median survival time in treatment B is 1.1–2 times longer than the actual median survival time in treatment A, based on simulations = 2000, censoring rate = 0.3.

$t_{M.A}$	$t_{M.B}/t_{M.A}$	$t_{\mathrm{SI}.A}$	$t_{\mathrm{SI}.B}$	EMEAN	ESE	ECP	EBIAS	RBIAS	MSE	POWER
91	1.1	42	56	0.864	0.124	0.921	−0.054	−0.059	0.018	0.205
			70	0.831	0.121	0.878	−0.087	−0.095	0.022	0.286
			84	0.779	0.112	0.768	−0.139	−0.151	0.032	0.453
91	1.2	42	56	0.795	0.115	0.922	−0.046	−0.055	0.015	0.389
			70	0.766	0.113	0.874	−0.075	−0.089	0.018	0.485
			84	0.722	0.104	0.781	−0.119	−0.142	0.025	0.659
91	1.3	42	56	0.738	0.107	0.920	−0.039	−0.050	0.013	0.586
			70	0.711	0.104	0.885	−0.066	−0.084	0.015	0.692
			84	0.672	0.097	0.802	−0.105	−0.135	0.020	0.820
91	1.4	42	56	0.687	0.098	0.929	−0.033	−0.046	0.011	0.776
			70	0.662	0.096	0.892	−0.058	−0.080	0.013	0.842
			84	0.628	0.090	0.825	−0.092	−0.128	0.017	0.918
91	1.5	42	56	0.643	0.093	0.928	−0.029	−0.043	0.010	0.886
			70	0.621	0.091	0.903	−0.052	−0.077	0.011	0.928
			84	0.590	0.085	0.838	−0.083	−0.123	0.014	0.967
91	1.6	42	56	0.607	0.087	0.931	−0.026	−0.041	0.008	0.950
			70	0.585	0.085	0.901	−0.047	−0.075	0.009	0.965
			84	0.557	0.080	0.846	−0.075	−0.119	0.012	0.985
91	1.7	42	56	0.571	0.083	0.934	−0.022	−0.037	0.007	0.981
			70	0.551	0.081	0.907	−0.042	−0.070	0.008	0.990
			84	0.526	0.076	0.857	−0.067	−0.113	0.010	0.996
91	1.8	42	56	0.537	0.079	0.942	−0.021	−0.037	0.007	0.995
			70	0.519	0.077	0.910	−0.039	−0.069	0.007	0.996
			84	0.496	0.073	0.858	−0.062	−0.111	0.009	1.000
91	1.9	42	56	0.510	0.073	0.947	−0.018	−0.035	0.006	0.998
			70	0.494	0.072	0.920	−0.034	−0.065	0.006	1.000
			84	0.472	0.069	0.875	−0.056	−0.106	0.008	1.000
91	2.0	42	56	0.485	0.072	0.931	−0.017	−0.033	0.005	0.999
			70	0.470	0.070	0.910	−0.032	−0.065	0.006	0.999
			84	0.450	0.067	0.875	−0.052	−0.104	0.007	1.000