Joint modeling of multiple ordinal adherence outcomes via generalized estimating equations with flexible correlation structure
نویسندگان
چکیده
منابع مشابه
Working-correlation-structure identification in generalized estimating equations.
Selecting an appropriate working correlation structure is pertinent to clustered data analysis using generalized estimating equations (GEE) because an inappropriate choice will lead to inefficient parameter estimation. We investigate the well-known criterion of QIC for selecting a working correlation structure, and have found that performance of the QIC is deteriorated by a term that is theoret...
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When inferences focus on population averages, one can directly model all of the marginal expectations E(Yij) = μij in terms of covariates of interest. This is typically done via h(μij) = x ′ ijβ, with h(·) some known link function, such as the logit link for binary responses. The marginal variance depends on the marginal mean according to Var(Yij) = v(μij)φ, where v(·) is a known variance funct...
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ژورنال
عنوان ژورنال: Statistics in Medicine
سال: 2017
ISSN: 0277-6715
DOI: 10.1002/sim.7560