Table 1.

Equal Censoring. Dist: Sojourn Time Distributions; PC: Percent Censoring; SE: empirical standard error; SEE: mean of standard error estimator; CP: 95% coverage probability; RE: Relative efficiency of Proposed estimator compared to Gehan/P-P estimator = MSE(Gehan/P-P)/MSE(Proposed);. EV: Extreme-Value (log-Weibull); L: Logistic; N: Normal; CN1: Correlated Normal (ρ = 0.5); CN2: Correlated Normal(ρ=0.9).

			Proposed				Gehan			Peto-Prentice			Log-Rank
N	Dist.	PC	Bias	SE	SEE	CP	Bias	SE	RE	Bias	SE	RE	Bias	SE	RE
100	EV	50	0.012	0.196	0.198	0.935	0.016	0.216	1.213	0.016	0.206	1.101	0.012	0.200	1.034
		75	0.013	0.263	0.261	0.947	0.024	0.321	1.496	0.026	0.306	1.356	0.026	0.306	1.358
	L	50	0.012	0.303	0.295	0.938	0.014	0.314	1.073	0.013	0.318	1.101	0.013	0.335	1.219
		75	0.008	0.351	0.348	0.946	0.009	0.390	1.239	0.013	0.388	1.222	0.012	0.395	1.268
	N	50	−0.005	0.180	0.179	0.943	0.002	0.191	1.133	0.000	0.190	1.117	0.005	0.201	1.257
		75	−0.007	0.221	0.221	0.936	−0.000	0.253	1.314	−0.001	0.255	1.330	0.003	0.265	1.447
	CN1	50	0.005	0.211	0.205	0.941	0.005	0.225	1.144	0.007	0.226	1.153	0.003	0.241	1.308
		75	0.011	0.245	0.243	0.931	0.012	0.284	1.340	0.013	0.282	1.318	0.014	0.296	1.455
	CN2	50	−0.004	0.223	0.220	0.940	−0.005	0.238	1.136	−0.006	0.240	1.160	−0.003	0.252	1.282
		75	0.004	0.259	0.264	0.946	0.014	0.307	1.410	0.010	0.305	1.389	0.010	0.315	1.481
200	EV	50	0.004	0.145	0.139	0.939	0.006	0.161	1.229	0.005	0.153	1.122	0.010	0.151	1.092
		75	−0.010	0.174	0.184	0.951	−0.004	0.214	1.504	−0.005	0.201	1.334	−0.004	0.206	1.401
	L	50	0.005	0.212	0.210	0.943	0.007	0.218	1.058	0.008	0.219	1.069	0.005	0.233	1.202
		75	−0.012	0.236	0.241	0.951	−0.002	0.268	1.291	−0.002	0.264	1.247	−0.000	0.268	1.286
	N	50	−0.000	0.130	0.127	0.944	−0.001	0.135	1.081	0.000	0.136	1.100	−0.002	0.145	1.244
		75	0.003	0.145	0.156	0.953	0.010	0.166	1.316	0.009	0.166	1.307	0.012	0.174	1.435
	CN1	50	−0.006	0.143	0.146	0.959	−0.007	0.155	1.173	−0.006	0.154	1.151	−0.007	0.163	1.296
		75	0.001	0.173	0.172	0.943	0.007	0.203	1.384	0.007	0.205	1.405	0.009	0.213	1.517
	CN2	50	0.000	0.155	0.156	0.949	−0.001	0.168	1.181	−0.000	0.167	1.169	0.003	0.175	1.279
		75	−0.002	0.180	0.186	0.955	−0.005	0.212	1.394	−0.005	0.210	1.361	−0.005	0.217	1.459