On the relations between excess fraction, attributable fraction, and etiologic fraction

American Journal of Epidemiology
Etsuji SuzukiToshihide Tsuda

Abstract

It has been noted that there is ambiguity in the expression "attributable fraction," and epidemiologic literature has drawn a distinction between "excess fraction" and "etiologic fraction." These quantities do not necessarily approximate one another, and the etiologic fraction is not generally estimable without strong biologic assumptions. In previous studies, researchers have explained the relations between excess and etiologic fractions in the potential-outcome framework, and few authors have explained the relations between these concepts by showing the correspondence between the potential-outcome model and the sufficient-cause model. In this article, the authors thoroughly clarify the conceptual relations between excess, attributable, and etiologic fractions by explicating the correspondence between these 2 models. In so doing, the authors take into account the potential completion time of each sufficient cause, which contributes to further insight to clarify the 2 types of etiologic fraction, i.e., accelerating etiologic proportion and total etiologic proportion. These 2 measures cannot be distinguished in epidemiologic data, and the differences might be subtle. However, they are closely related to a very fundamental issue ...Continue Reading

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Citations

Aug 2, 2013·BMC Medical Research Methodology·Etsuji SuzukiEiji Yamamoto
May 18, 2012·Social Science & Medicine·Etsuji Suzuki
May 24, 2017·American Journal of Epidemiology·Tyler J VanderWeele
Jun 3, 2014·Epidemiology·Etsuji Suzuki, Eiji Yamamoto
Dec 11, 2019·Risk Analysis : an Official Publication of the Society for Risk Analysis·James K HammittThomas C Erren
Feb 4, 2014·Epidemiology·Etsuji SuzukiEiji Yamamoto
Apr 23, 2017·BMC Medical Research Methodology·Wen-Chung Lee
Sep 3, 2020·Statistics in Medicine·Yen-Tsung HuangSheng-Hsuan Lin
Feb 6, 2020·Journal of Epidemiology·Etsuji SuzukiEiji Yamamoto
Nov 26, 2020·Epidemiology·Etsuji Suzuki, Eiji Yamamoto
Aug 17, 2021·The Journal of Infectious Diseases·Patrick J HornerWilliam M Geisler
Sep 27, 2021·European Journal of Epidemiology·Etsuji Suzuki, Eiji Yamamoto
Sep 29, 2021·Epidemiology·Etsuji Suzuki, Eiji Yamamoto

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