Estimating Attributable Life Expectancy Under the Proportional Mean Residual Life Model
Yixin Wang () and
Ying Qing Chen ()
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Yixin Wang: Fred Hutchinson Cancer Research Center
Ying Qing Chen: Fred Hutchinson Cancer Research Center
Statistics in Biosciences, 2019, vol. 11, issue 3, No 9, 659-676
Abstract:
Abstract In population-based health research, the so-called population attributable fraction is an important quantity that calculates the percentage of excess risk of morbidity and mortality associated with modifiable risk factors for a given population. While the concept of “risk” is usually measured by event probabilities, in practice it may be of a more direct interest to know the excess life expectancy associated with the modifiable risk factors instead, particularly when mortality is of the ultimate concern. In this paper, we thus propose to study a novel quantity, termed “attributable life expectancy,” to measure the population attributable fraction of life expectancy. We further develop a model-based approach for the attributable life expectancy under the Oakes–Dasu proportional mean residual life model, and establish its asymptotic properties for inferences. Numerical studies that include Monte-Carlo simulations and an actual analysis of the mortality associated with smoking cessation in an Asia Cohort Consortium are conducted to evaluate the performance of our proposed method.
Keywords: Excess life expectancy; Population research; Residual life regression; Time-to-event (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s12561-019-09258-y
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