Competing risks, left truncation and late entry effect in A-bomb survivors cohort

J. Anzures-Cabrera and J. L. Hutton

Journal of Applied Statistics, 2010, vol. 37, issue 5, 821-831

Abstract: The cohort under study comprises A-bomb survivors residing in Hiroshima Prefecture since 1968. After this year, thousands of survivors were newly recognized every year. The aim of this study is to determine whether the survival experience of the late entrants to the cohort is significantly different from the registered population in 1968. Parametric models that account for left truncation and competing risks were developed by using sub-hazard functions. A Weibull distribution was used to determine the possible existence of a late entry effect in Hiroshima A-bomb survivors. The competing risks framework shows that there might be a late entry effect in the male and female groups. Our findings are congruent with previous studies analysing similar populations.

Keywords: competing risks; late entry effect; left truncation; sub-hazard function; Weibull distribution (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1080/02664760902914417

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