Unbiased Estimating Equations From Working Correlation Models for Irregularly Timed Repeated Measures
不规则时点重复测量中由工作相关模型构造无偏估计方程
The method of generalized estimating equations (GEEs) has been criticized recently for a failure to protect against misspecification of working correlation models, which in some cases leads to loss of efficiency or infeasibility of solutions. However, the feasibility and efficiency of GEE methods can be enhanced considerably by using flexible families of working correlation models. We propose two ways of constructing unbiased estimating equations from general correlation…