Male Survival Advantage on the Baja California Peninsula

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Publication Type Journal Article
School or College College of Social & Behavioral Science
Department Anthropology
Creator Macfarlan, Shane
Other Author Schacht R, Macfarlan SJ, Meeks H, Cervantes PL, Morales F.
Title Male Survival Advantage on the Baja California Peninsula
Date 2020
Description A consistent finding from contemporary Western societies is that women outlive men. However, what is unclear is whether sex differences in survival are constant across varying socio-ecological conditions. We test the universality of the female survival advantage with mortality data from a nineteenth century population in the Baja California peninsula of Mexico. When examined simply, we find evidence for a male-biased survival advantage. However, results from Cox regression clearly show the importance of age intervals for variable survival patterns by sex. Our key findings are that males: (i) experience significantly lower mortality risk than females during the ages 15-30 (RR = 0.69), (ii) are at a significantly increased risk of dying in the 61+ category (RR = 1.30) and (iii) do not experience significantly different mortality risk at any other age interval (0-14, 31-45, 46-60). We interpret our results to stem from differing intrinsic and extrinsic risk factors for sexbiased mortality across age intervals, highlighting the relevance of a lifecourse approach to the study of survival advantage. Ultimately, our results make clear the need to more broadly consider variability in mortality risk factors across time and place to allow for a clearer understanding of human survival differences.
Type Text
Publisher the Royal Society
Volume 16
Issue 11
First Page 1
Last Page 5
Subject ecology; health and disease and epidemiology; behaviour
Language eng
Rights Management (c)the Royal Society
Format Medium application/pdf
ARK ark:/87278/s6fz31pq
Setname ir_uspace
Date Created 2020-11-24
Date Modified 2021-05-06
ID 1612100
Reference URL
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