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01.12.2017 | Research article | Ausgabe 1/2017 Open Access

BMC Geriatrics 1/2017

Prevalence and correlates of frailty in an older rural African population: findings from the HAALSI cohort study

Zeitschrift:
BMC Geriatrics > Ausgabe 1/2017
Autoren:
Collin F. Payne, Alisha Wade, Chodziwadziwa W. Kabudula, Justine I. Davies, Angela Y. Chang, F. Xavier Gomez-Olive, Kathleen Kahn, Lisa F. Berkman, Stephen M. Tollman, Joshua A. Salomon, Miles D. Witham
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12877-017-0694-y) contains supplementary material, which is available to authorized users.

Abstract

Background

Frailty is a key predictor of death and dependency, yet little is known about frailty in sub-Saharan Africa despite rapid population ageing. We describe the prevalence and correlates of phenotypic frailty using data from the Health and Aging in Africa: Longitudinal Studies of an INDEPTH Community cohort.

Methods

We analysed data from rural South Africans aged 40 and over. We used low grip strength, slow gait speed, low body mass index, and combinations of self-reported exhaustion, decline in health, low physical activity and high self-reported sedentariness to derive nine variants of a phenotypic frailty score. Each frailty category was compared with self-reported health, subjective wellbeing, impairment in activities of daily living and the presence of multimorbidity. Cox regression analyses were used to compare subsequent all-cause mortality for non-frail (score 0), pre-frail (score 1–2) and frail participants (score 3+).

Results

Five thousand fifty nine individuals (mean age 61.7 years, 2714 female) were included in the analyses. The nine frailty score variants yielded a range of frailty prevalences (5.4% to 13.2%). For all variants, rates were higher in women than in men, and rose steeply with age. Frailty was associated with worse subjective wellbeing, and worse self-reported health. Both prefrailty and frailty were associated with a higher risk of death during a mean 17 month follow up for all score variants (hazard ratios 1.29 to 2.41 for pre-frail vs non-frail; hazard ratios 2.65 to 8.91 for frail vs non-frail).

Conclusions

Phenotypic frailty could be measured in this older South African population, and was associated with worse health, wellbeing and earlier death.
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