Table 4.

The percent (%) bias, mean squared error (MSE), and coverage probabilities (CP) are given for 2000 simulated data sets for the SIMEX and naive methods with n = 1000, exponential time, baseline hazard of 0.1, a normal distribution for the error term, and 25%, 50%, 75%, and 90% censoring for the true event time.

% Censored	β	${\sigma }_{\upsilon }^2$	Method	% Bias	MSE	CP
25	log(1.5)	0.5	SIMEX	−4.776	0.048	0.931
			Naive	−12.72	0.064	0.712
		1	SIMEX	−9.331	0.059	0.872
			Naive	−18.31	0.084	0.492
	log(3)	0.5	SIMEX	−4.948	0.081	0.836
			Naive	−15.53	0.177	0.054
		1	SIMEX	−10.94	0.135	0.501
			Naive	−23.23	0.260	0.000
50	log(1.5)	0.5	SIMEX	−2.828	0.051	0.939
			Naive	−7.090	0.054	0.902
		1	SIMEX	−5.325	0.056	0.930
			Naive	−10.41	0.063	0.839
	log(3)	0.5	SIMEX	−3.441	0.075	0.904
			Naive	−10.34	0.126	0.408
		1	SIMEX	−7.287	0.105	0.762
			Naive	−15.47	0.179	0.120
75	log(1.5)	0.5	SIMEX	−1.430	0.066	0.948
			Naive	−3.130	0.065	0.939
		1	SIMEX	−2.496	0.068	0.946
			Naive	−4.590	0.067	0.940
	log(3)	0.5	SIMEX	−1.885	0.082	0.947
			Naive	−5.610	0.095	0.848
		1	SIMEX	−3.940	0.093	0.909
			Naive	−8.260	0.117	0.714
90	log(1.5)	0.5	SIMEX	−1.233	0.084	0.956
			Naive	−1.690	0.082	0.946
		1	SIMEX	−1.804	0.085	0.960
			Naive	−2.680	0.084	0.941
	log(3)	0.5	SIMEX	−1.281	0.095	0.950
			Naive	−3.640	0.096	0.918
		1	SIMEX	−2.587	0.101	0.942
			Naive	−5.350	0.106	0.874