Research Article

A Semiparametric Marginalized Model for Longitudinal Data with Informative Dropout

Table 4

Estimates of regression coefficients for the MDRD study.

ProposedGEE
VariableNormalEVLogistic
EstSEEstSEEstSEEstSE

Intercept 18.540.9618.570.9118.581.1118.570.78
Time −0.270.03−0.290.04−0.280.03−0.140.03
Intervention 0.821.060.741.010.711.170.350.90
Prog −0.141.07−0.081.02−0.141.19−0.140.91
Bp −0.151.38−0.201.34−0.071.48−0.360.49
log.Pt −1.090.39−1.090.37−1.120.42−0.610.38
𝜂 𝑖 1.910.501.380.381.110.28
𝜂 𝑖 𝑡 𝑖 𝑗 0.140.040.140.040.080.03

Intervention: blood pressure control (1: low and 0: normal); Prog: baseline disease progression status (1: yes and 0: no); Bp: baseline blood pressure; log.Pt: baseline log-transformed urine protein level.