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Cardiovascular Risk Burden and Future Risk of Walking Speed Limitation in Older Adults
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
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Number of Authors: 7
2017 (English)In: Journal of The American Geriatrics Society, ISSN 0002-8614, E-ISSN 1532-5415, Vol. 65, no 11, 2418-2424 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: To explore the association between cardiovascular risk factor (CRF) burden and limitation in walking speed, balance, and chair stand and to verify whether these associations vary according to age and cognitive status.

DESIGN: Longitudinal population-based study.

SETTING: Urban area of Stockholm, Sweden.

PARTICIPANTS: Individuals aged 60 and older who participated in the Swedish National Study on Aging and Care in Kungsholmen and were free of limitations in walking speed (n = 1,441), balance (n = 1,154), or chair stands (n = 1,496) at baseline (2001-04).

MEASUREMENTS: At baseline, data on demographic characteristics, CRFs, other lifestyle factors, C-reactive protein, and cognitive function were collected. CRF burden was measured using the Framingham general cardiovascular risk score (FRS). Limitations in walking speed (<0.8 m/s), balance (<5 seconds), and chair stand (inability to rise 5 times) were determined at 3-, 6-, and 9-year follow-up. Data were analyzed using Cox proportional hazards models stratified according to age (<78, >= 78).

RESULTS: During follow-up, 326 persons developed limitations in walking speed, 303 in balance, and 374 in chair stands. An association between the FRS and walking speed limitation was evident only in adults younger than 78 (for each 1-point increase in FRS: hazard ratio (HR) = 1.09, 95% confidence interval (CI) = 1.02-1.17) after controlling for potential confounders including cognitive function (correspondingly, in adults aged >= 78: HR = 0.98, 95% CI = 0.92-1.03). Also, higher FRS was significantly associated with faster decline in walking speed (P<.001).

CONCLUSION: A higher FRS is associated with greater risk of subsequent development of walking speed limitation in adults younger than 78, independent of cognitive function. Interventions targeting multiple CRFs in younger-old people may help in maintaining mobility function.

Place, publisher, year, edition, pages
2017. Vol. 65, no 11, 2418-2424 p.
Keyword [en]
Framingham general cardiovascular risk score, physical function, cognitive function, population study
National Category
Gerontology, specialising in Medical and Health Sciences Geriatrics
Identifiers
URN: urn:nbn:se:su:diva-150992DOI: 10.1111/jgs.15158ISI: 000417766900013PubMedID: 29124731OAI: oai:DiVA.org:su-150992DiVA: diva2:1173184
Available from: 2018-01-11 Created: 2018-01-11 Last updated: 2018-01-11Bibliographically approved

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