Additive hazards models for gap time data with multiple causes

P.G. Sankaran and P. Anisha

Statistics & Probability Letters, 2012, vol. 82, issue 7, 1454-1462

Abstract: Recurrent event data with multiple causes are often observed in biomedical studies. The additive hazards model describes a different aspect of the association between covariates and the failure time than does the proportional hazards model. In this paper, we introduce additive hazards models for the analysis of gap time data of recurrent events with multiple causes. We estimate the regression parameter vector and cumulative baseline cause specific hazard rate function using counting process approach. Asymptotic properties of the estimators are studied. The proposed model is applied to the kidney dialysis data given in Lawless (2003). A simulation study is carried out to assess the performance of the estimates.

Keywords: Additive hazards model; Counting processes; Gap time; Recurrent event data (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1016/j.spl.2012.02.025

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