Semiparametric methods for incomplete longitudinal count data with an application to Health and Retirement Study

TitleSemiparametric methods for incomplete longitudinal count data with an application to Health and Retirement Study
Publication TypeJournal Article
Year of Publication2021
AuthorsZubair, S, Sinha, SK
JournalJournal of Applied Statistics
Volume49
Issue14
Pagination3513-3535
ISBN Number0266-4763
KeywordsGeneralized estimating equation, inverse probability weight, Missing response, Monte Carlo Method, semiparametric method, spline regression
Abstract

In this paper, we propose and explore a novel semiparametric approach to analyzing longitudinal count data. We address the issue of missingness in longitudinal data and propose a weighted generalized estimations equations approach to fitting marginal mean response models for count responses with dropouts. Also, we investigate a spline regression approach to approximating the curvilinear relationship between the mean response and covariates. The asymptotic properties of the proposed estimators are studied in some detail. The empirical properties of the estimators are investigated using Monte Carlo simulations. An application is also provided using actual survey data obtained from the Health and Retirement Study (HRS).

DOI10.1080/02664763.2021.1951684
Citation Key11753
PubMed ID36246855
PubMed Central IDPMC9559331