Table 3.

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, 0)

	β̂z			β̂a
Method	Emean	Evar	$\widehat{\mathit{\text{var}}}$	Emean	Evar	$\widehat{\mathit{\text{var}}}$
wtd PP	0.098	0.00013	0.00015	0.011	0.0087	0.0082
PL	0.10	0.000076	0.000095	−0.0050	0.0096	0.0095
FL	0.10	0.000075	0.000091	−0.0087	0.0095	0.0084
unwtd PP	0.10	0.000080	-	0.13	0.0057	-
ITT	0.11	0.000070	-	−0.0045	0.0048	-

note^*: only the additive models of z and a were fit