Citation

Xu Y, Lam KF, Zhou F, Yip PSF, Watson R. Commun. Stat. Theory Method. 2012; 41(18): 3389-3402.

Copyright

(Copyright © 2012)

DOI

10.1080/03610926.2011.560740

PMID

unavailable

Abstract

The incidence of suicide is an example of rare event. A Cox cure model is adopted to examine the suicide risk of a cohort study of a sample of 65,000 Personal Emergency Link users over a 10-year observation period. Our objective is to investigate the effect of personal covariates on the failure time to suicide as well as the long-term survival from suicide. Based on the Cox cure model, a new and efficient estimation approach using retrospective sampling and multiple imputation was used. Compared with the standard Cox proportional hazards model, the Cox cure model provides a new perspective on analyzing the suicide data.