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Cohort differences in the levels and trajectories of frailty among older people in England

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Date
04/2015
Author
Marshall, Alan David
Nazroo, James
Tampubolon, Gindo
Vanhoutte, Bram
Keywords
RA0421 Public health. Hygiene. Preventive Medicine
3rd-DAS
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Abstract
Background The level of frailty in the older population across age cohorts and how this changes is a factor in determining future care costs and may also influence the extent of socioeconomic and gender inequalities in frailty. Methods We model cohort-specific trajectories in frailty among the community dwelling population older than 50 years, using five waves (2002–2010) of the English Longitudinal Study of Ageing. We stratify our analysis by wealth and gender and use a frailty index, based on accumulation of ‘deficits’. Results For males and females between the ages of 50 and 70 in 2002, frailty trajectories for adjacent age cohorts converge. However, levels of frailty are higher in recent compared with earlier cohorts at the older ages (for cohorts aged over 70 in 2002). These cohort differences are largest in the poorest wealth group, while for the most affluent, frailty trajectories overlap across all adjacent cohorts suggesting no change across cohorts. Conclusions A key driver of the cohort differences in frailty that we observe is likely to be increased survival of frail individuals. Importantly, this paper illustrates that the social conditions experienced across the wealth distribution impacts on the rate of deficit accumulation in older populations. Our results on trajectories of frailty between 2002 and 2010 are pessimistic and, in the context of rising life expectancies, suggest that poorer older people in particular spend additional years of life in a frail state.
Citation
Marshall , A D , Nazroo , J , Tampubolon , G & Vanhoutte , B 2015 , ' Cohort differences in the levels and trajectories of frailty among older people in England ' , Journal of Epidemiology and Community Health , vol. 69 , no. 4 , pp. 316-321 . https://doi.org/10.1136/jech-2014-204655
Publication
Journal of Epidemiology and Community Health
Status
Peer reviewed
DOI
https://doi.org/10.1136/jech-2014-204655
ISSN
0143-005X
Type
Journal article
Rights
© The Author(s). This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited.
Description
This work was supported by the Medical Research Council and Economic Research Council through the Lifelong Health and Wellbeing programme (grant reference: G1001375/1).
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8228

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