Cohort case-control design and analysis for clustered failure-time data

Shou En Lu, Mei Cheng Wang

Research output: Contribution to journalArticle

Abstract

Cohort case-control design is an efficient and economical design to study risk factors for disease incidence or mortality in a large cohort. In the last few decades, a variety of cohort case-control designs have been developed and theoretically justified. These designs have been exclusively applied to the analysis of univariate failure-time data. In this work, a cohort case-control design adapted to multivariate failure-time data is developed. A risk set sampling method is proposed to sample controls from nonfailures in a large cohort for each case matched by failure time. This method leads to a pseudolikelihood approach for the estimation of regression parameters in the marginal proportional hazards model (Cox, 1972, Journal of the Royal Statistical Society, Series B 34, 187-220), where the correlation structure between individuals within a cluster is left unspecified. The performance of the proposed estimator is demonstrated by simulation studies. A bootstrap method is proposed for inferential purposes. This methodology is illustrated by a data example from a child vitamin A supplementation trial in Nepal (Nepal Nutrition Intervention Project-Sarlahi, or NNIPS).

Original languageEnglish (US)
Pages (from-to)764-772
Number of pages9
JournalBiometrics
Volume58
Issue number4
DOIs
StatePublished - Dec 2002

Keywords

  • Bootstrap method
  • Clustered failure-time data
  • Cohort case-control study
  • Marginal model
  • Proportional hazards model
  • Pseudolikelihood
  • Time-matched case-control set

ASJC Scopus subject areas

  • Statistics and Probability
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)
  • Applied Mathematics

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