A Semiparametric Marginalized Model for Longitudinal Data with Informative Dropout

Table 2

Simulation results for mixed types of dropouts.

𝛼	𝑏𝑖𝑗(𝜂𝑖)	𝑁	Proposed 𝛽1			Proposed 𝛼			GEE 𝛽1
			Bias	SSE	CP	Bias	SSE	CP	Bias	SSE	CP
0	𝜂𝑖	100	0.003	0.075	0.958	−0.007	0.158	0.956	0.002	0.068	0.946
		200	0.005	0.056	0.954	−0.003	0.114	0.944	0.005	0.049	0.956
0.25	𝜂𝑖	100	0.006	0.073	0.948	0.009	0.156	0.964	0.061	0.068	0.878
		200	0.004	0.055	0.950	−0.003	0.116	0.936	0.057	0.050	0.768
0.50	𝜂𝑖	100	0.008	0.076	0.948	0.010	0.174	0.952	0.116	0.070	0.660
		200	0.006	0.051	0.960	−0.008	0.121	0.956	0.113	0.049	0.380
0.25	𝜂𝑖𝑡𝑖𝑗	100	0.005	0.106	0.948	0.005	0.106	0.960	0.233	0.074	0.110
		200	0.009	0.078	0.936	−0.007	0.077	0.940	0.233	0.054	0.000
0.50	𝜂𝑖𝑡𝑖𝑗	100	0.007	0.097	0.954	0.010	0.141	0.950	0.397	0.081	0.000
		200	0.008	0.071	0.940	−0.008	0.104	0.936	0.395	0.059	0.000