Abstract

Evolutionary theories of senescence, such as the ‘disposable soma’ theory, propose that natural selection trades late survival for early fecundity. ‘Frailty’, a multidimensional measure of health status, may help to better define the long-term consequences of reproduction. We examined the relationship between parity and later life frailty (as measured by the Frailty Index) in a sample of 3,534 adults aged 65 years and older who participated in the English Longitudinal Study of Ageing. We found that the most parous adults were the most frail and that the parity-frailty relationship was similar for both sexes. Whilst this study provided some evidence for a ‘parity-frailty trade-off’, there was little support for our hypothesis that the physiological costs of childbearing influence later life frailty. Rather, behavioural and social factors associated with rearing many children may have contributed to the development of frailty in both sexes.

Details

Title
Frailty: A cost incurred by reproduction?
Author
Gordon, E H 1 ; Peel, N M 1 ; Chatfield, M D 1 ; Lang, I A 2 ; Hubbard, R E 1 

 Centre for Health Services Research, The University of Queensland, Brisbane, Australia (GRID:grid.1003.2) (ISNI:0000 0000 9320 7537) 
 The University of Exeter, Exeter, United Kingdom (GRID:grid.8391.3) (ISNI:0000 0004 1936 8024) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2416036107
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.