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A Novel Examination of Successful Aging Trajectories at the End of Life

Published online by Cambridge University Press:  25 October 2016

Theodore D. Cosco Open the ORCID record for Theodore D. Cosco [Opens in a new window] ,
Blossom C.M. Stephan ,
Graciela Muniz ,
Carol Brayne  and
the CC75C Study Collaboration
Theodore D. Cosco*
Affiliation:
Department of Public Health and Primary Care, University of Cambridge Medical Research Council Unit for Lifelong Health and Ageing at University College London UCL
Blossom C.M. Stephan
Affiliation:
Institute of Health and Society, Newcastle University
Graciela Muniz
Affiliation:
Medical Research Council Unit for Lifelong Health and Ageing at University College London UCL
Carol Brayne
Affiliation:
Department of Public Health and Primary Care, University of Cambridge
*
† La correspondance et les demandes de tire-à-part doivent être adressées à : / Correspondence and requests for offprints should be sent to: Theodore D. Cosco MRC Unit for lifelong Health and Ageing at UCL 33 Bedford Place London, United Kingdom WC1B 5JU ([email protected])
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Abstract

A successful aging (SA) index was captured in a longitudinal population-based cohort study of individuals aged 75 and older and examined longitudinally using growth mixture modelling (GMM) to identify groups with similar trajectories using decedents’ (n = 1,015) last completed interview and up to four previous data collection waves before death. GMM identified a three-class model. Classes were high-functioning, no decline (HN); high-functioning, gradual decline (HG); and low-functioning, steep decline (LS). HN class individuals were significantly younger at death (p < 0.001) and at last interview (p < 0.001), consisted of more men (p < 0.001), and more likely to be married (p < 0.001) compared to HG and LS class individuals. These results demonstrate the different ways in which individuals can experience successful aging at the end of life. This study provides the framework for future research into life-course processes of aging, with important implications for policy and practice.

Résumé

Un indice de vieillissement réussi (SA) a été capturé dans une étude de cohorte longitudinale basée sur la population des personnes de 75 ans et plus, qui a été examiné longitudinalement en utilisant la modélisation d’un mélange de croissance (MMC) pour identifier les groupes ayant des trajectoires similaires utilisant la dernière interview complète de personnes décédées et jusqu’à quatre collections de données précédentes avant la mort. MMC a identifié un modèle avec trois classes. Les classes étaient : haut fonctionnement, pas de déclin (HPD); fonctionnement élevé, baisse progressive (HBP); et un faible fonctionnement, fort baisse (FB). Les individus de la classe HPD étaient significativement plus jeunes à la mort, et à la fin de l’examen, se composait de plus d’hommes, et plus susceptibles d’être mariées, comparativement aux individus HBP et FB. Ces résultats démontrent différentes façons dont les individus peuvent éprouver un vieillissement réussi à la fin de vie. Cette étude fournit le cadre pour la recherche future en ce qui concerne les processus du vieillissement pendant toute la vie, avec des implications importantes pour la politique et la pratique.

Keywords

agingend of lifegrowth mixture modellingsuccessful agingvieillissementfin de viemodélisation d’un mélange de croissancevieillissement réussi
Type
Research Notes / Notes de recherche
Information
Canadian Journal on Aging / La Revue canadienne du vieillissement , Volume 35 , Issue 4 , December 2016 , pp. 533 - 540
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Copyright
Copyright © Canadian Association on Gerontology 2016 

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