A Semiparametric Marginalized Model for Longitudinal Data with Informative Dropout

Table 3

Sensitivity analysis for misspecified models under mixed types of dropouts.

True	Fitted		Proposed 𝛽1		Proposed 𝛼1		Proposed 𝛼2
		𝑁	Bias	CP	Bias	CP	Bias	CP
0.25𝜂𝑖	𝛼1𝜂𝑖+𝛼2𝜂𝑖𝑡𝑖𝑗	100	0.009	0.946	0.014	0.956	0.002	0.950
		200	0.009	0.964	−0.002	0.948	0.002	0.968
0.25𝜂𝑖𝑡𝑖𝑗	𝛼1𝜂𝑖+𝛼2𝜂𝑖𝑡𝑖𝑗	100	0.005	0.946	−0.004	0.954	0.007	0.956
		200	0.009	0.936	0.001	0.956	−0.007	0.952
0.5𝜂𝑖+0.1𝜂𝑖𝑡𝑖𝑗	𝛼1𝜂𝑖	100	0.071	0.860	0.119	0.918
		200	0.069	0.788	0.103	0.896
0.2𝜂𝑖+0.25𝜂𝑖𝑡𝑖𝑗	𝛼2𝜂𝑖𝑡𝑖𝑗	100	−0.017	0.924			0.086	0.850
		200	−0.017	0.902			0.078	0.692