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Vascular Risk Factor Burden, Atherosclerosis, and Functional Dependence in Old Age: A Population-Based Study
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). Jining Medical University, People's Republic of China.
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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2014 (English)In: International Journal of Behavioral Medicine, ISSN 1070-5503, E-ISSN 1532-7558, Vol. 21, no 4, 597-604 p.Article in journal (Refereed) Published
Abstract [en]

Vascular risk factors such as hypertension and obesity have been associated with physical limitations among older adults. The purpose of this study is to examine whether individual and aggregated vascular risk factors (VRFs) are associated with functional dependence and to what extent carotid atherosclerosis (CAS) or peripheral artery disease (PAD) may mediate the possible associations of aggregated VRFs with functional dependence. This cross-sectional study included 1,451 community-living participants aged a parts per thousand yen60 years in the Confucius Hometown Aging Project of China. Data on demographic features, hypertension, high total cholesterol, obesity, smoking, physical inactivity, diabetes, CAS, PAD, and cardiovascular diseases (CVDs) were collected through an interview, a clinical examination, and laboratory tests. Functional dependence was defined as being dependent in at least one activity in the personal or instrumental activities of daily living. Data were analyzed using multiple logistic models controlling for potential confounders. We used the mediation model to explore the potential mediating effect of CAS and PAD on the associations of aggregated VRFs with functional dependence. Of the 1,451 participants, 222 (15.3 %) had functional dependence. The likelihood of functional dependence increased linearly with increasing number of VRFs (hypertension, high total cholesterol, abdominal obesity, and physical inactivity) (p for trend < 0.002). Mediation analysis showed that controlling for demographics and CVDs up to 11 % of the total association of functional dependence with clustering VRFs was mediated by CAS and PAD. Aggregation of multiple VRFs is associated with an increased likelihood of functional dependence among Chinese older adults; the association is partially mediated by carotid and peripheral artery atherosclerosis independently of CVDs.

Place, publisher, year, edition, pages
2014. Vol. 21, no 4, 597-604 p.
Keyword [en]
Aging, Cardiovascular risk factors, Atherosclerosis, Functional dependence, Population-based study, China
National Category
Gerontology, specializing in Medical and Health Sciences Psychology
Identifiers
URN: urn:nbn:se:su:diva-107024DOI: 10.1007/s12529-013-9352-8ISI: 000339734200006OAI: oai:DiVA.org:su-107024DiVA: diva2:743624
Note

AuthorCount:7;

Available from: 2014-09-04 Created: 2014-09-02 Last updated: 2017-12-05Bibliographically approved

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International Journal of Behavioral Medicine
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