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Optimal generalized case–cohort sampling design under the additive hazard model

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  • Yongxiu Cao
  • Jichang Yu

Abstract

Generalized case–cohort designs have been proved to be a cost-effective way to enhance effectiveness in large epidemiological cohort. In generalized case–cohort design, we first select a subcohort from the underlying cohort by simple random sampling, and then sample a subset of the failures in the remaining subjects. In this article, we propose the inference procedure for the unknown regression parameters in the additive hazards model and develop an optimal sample size allocations to achieve maximum power at a given budget in generalized case–cohort design. The finite sample performance of the proposed method is evaluated through simulation studies. The proposed method is applied to a real data set from the National Wilm's Tumor Study Group.

Suggested Citation

  • Yongxiu Cao & Jichang Yu, 2017. "Optimal generalized case–cohort sampling design under the additive hazard model," Communications in Statistics - Theory and Methods, Taylor & Francis Journals, vol. 46(9), pages 4484-4493, May.
    • Handle: RePEc:taf:lstaxx:v:46:y:2017:i:9:p:4484-4493
    DOI: 10.1080/03610926.2015.1085563
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