Table 4.

Simulation results for Scenario 3 as reported in Table IV of Lefebvreet al. (2008).

Covariates in P(A|L)	N	A(0) Bias*10	A(0) MSE*10	A(1) Bias*10	A(1) MSE*10
Lefebvre et al.: Confounder(s) only	300	−0.080	1.170	0.099	1.155
	1000	−0.371	0.385	−0.035	0.331
	10000	−0.368	0.056	−0.203	0.043
Lefebvre et al.: Confounder(s) & risk factors	300	−0.110	1.092	0.112	0.865
	1000	−0.330	0.340	−0.108	0.245
	10000	−0.378	0.051	−0.207	0.037
Lefebvre et al.: Confounder(s) & IVs	300	1.611	3.538	2.069	3.841
	1000	0.824	2.063	1.245	2.188
	10000	0.241	0.684	0.379	0.622
Lefebvre et al.: Confounder(s), IVs & risk factors	300	1.600	3.477	2.143	3.598
	1000	0.867	2.053	1.170	2.043
	10000	0.235	0.676	0.372	0.625
Lefebvre et al.: Mis-specified	300	3.146	3.326	5.591	5.494
	1000	2.460	1.700	5.258	3.851
	10000	2.364	0.832	4.943	2.705
Lefebvre et al.: Full Model	300	1.524	3.648	2.221	3.907
	1000	0.878	2.099	1.185	2.099
	10000	0.240	0.679	0.377	0.630