Table 3:

Simulated data - Scenario I. True value, and Monte Carlo mean, bias and mean square error (MSE) of the posterior mean of the time-to-event model parameters for different sample sizes. The results are presented for naive fitting of AFT, PO, and PH models. In this table, the same true time-to-event model is assumed to simulate and to fit the data.

		Fitted Model
			PH			AFT			PO
N	Parameter	True Value	Mean	Bias	MSE	Mean	Bias	MSE	Mean	Bias	MSE
100	β1	−0.5	−0.308	0.192	0.046564	−0.386	0.114	0.017434	−0.325	0.175	0.059050
	β2	1.0	0.686	0.314	0.129580	0.791	0.209	0.057670	0.735	0.265	0.165507
	ρ	0.2	0.146	0.054	0.005063	0.141	0.059	0.005210	0.144	0.056	0.005398
200	β1	−0.5	−0.312	0.188	0.040296	−0.390	0.11	0.014599	−0.347	0.153	0.037034
	β2	1.0	0.710	0.290	0.100839	0.798	0.202	0.048498	0.717	0.283	0.125007
	ρ	0.2	0.125	0.075	0.006762	0.125	0.075	0.006812	0.130	0.070	0.006303
300	β1	−0.5	−0.315	0.185	0.037274	−0.386	0.114	0.014451	−0.332	0.168	0.038471
	β2	1.0	0.713	0.287	0.095330	0.809	0.191	0.040722	0.687	0.313	0.128777
	ρ	0.2	0.120	0.080	0.007240	0.118	0.082	0.007573	0.122	0.078	0.006896