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Validation of an a Priori, Index Model of Successful Aging in a Population-based Cohort Study: the Successful Aging Index by Theodore D. Cosco; Blossom C. M. Stephan; Carol Brayne is a Medicine article available to read on EtoBox.

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## ABSTRACT ## Background: Many definitions of successful aging (SA) exist in the absence of an established consensus definition. There are few examples of a priori application of SA models in real world contexts using external validation procedures. The current study aims to establish the predictive validity of an a priori, continuous model of SA with respect to service utilization. ## Methods: Individuals (__n__ = 740; 64.2% female) aged 65 years and over (mean 75.9; SD 6.2), randomly selected from general practitioner registries in five sites across the United Kingdom included in the second and third combined screen and assessment waves of the Medical Research Council Cognitive Function and Aging Study (MRC CFAS; a longitudinal population-based cohort study) comprised the baseline and two-year follow-up in the current study. A Successful Aging Index (SAI) was created using items identified by systematic reviews of operational definitions and lay perspectives of SA, capturing physiological and psychosocial components. Demographic data and SAI components were collected at baseline. Outcome measures, i.e. health service use, informal care use, and functional service, were captured

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Author

Theodore D. Cosco; Blossom C. M. Stephan; Carol Brayne

Publisher

Cambridge University Press (CUP)

Published

2015

Language

EN

Field

Medicine (Health Sciences)