Table 2.

Parameter and variance estimates under a model assuming the 3 groups have proportional hazards (number of simulations = 300, sample size in each dataset = 1000); true β = (0.1, −0.28, 0)

	β̂z			β̂a			β̂za
Method	Emean	Evar	$\widehat{\mathit{\text{var}}}$	Emean	Evar	$\widehat{\mathit{\text{var}}}$	Emean	Evar	$\widehat{\mathit{\text{var}}}$
wtd PP	0.10	0.00030	0.00036	−0.25	0.034	0.037	−0.0020	0.00053	0.00058
PL	0.10	0.00014	0.00016	−0.27	0.031	0.031	−0.0020	0.00043	0.00042
FL	0.10	0.00014	0.00015	−0.28	0.031	0.027	−0.0038	0.00043	0.00039
unwtd PP	0.11	0.00016	-	−0.097	0.023	-	−0.0043	0.00038	-
ITT	0.11	0.00016	-	−0.18	0.018	-	−0.0042	0.00031	-