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Associations between functional biological age and cognition among older adults in rural Bangladesh: Comparisons with chronological age
Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology. Jönköping University, School of Health and Welfare, HHJ. ARN-J (Aging Research Network - Jönköping). Södertörn University, Huddinge, Sweden.ORCID iD: 0000-0002-1599-0444
Stockholm University, Sweden.
Karolinska Institutet, Stockholm, Sweden.
International Center for Diarrhoeal Disease Research, Dhaka, Bangladesh.
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2018 (English)In: Journal of Aging and Health, ISSN 0898-2643, E-ISSN 1552-6887Article in journal (Refereed) Epub ahead of print
Abstract [en]

Objectives: We constructed a functional biological age (fBioAge) indicator by using four functional variables: grip strength, forced expiratory lung volume, visual acuity, and hearing. Our aim was to compare how chronological age (ChronAge) and fBioAge are related to cognitive abilities in older adults.

Method: We used data from the Poverty and Health in Aging project, Bangladesh. Participants (N = 400) were 60+ years of age and diagnosed as nondemented. Examined cognitive abilities were four episodic memory measures (including recall and recognition), two verbal fluency indicators, two semantic knowledge, and two processing speed tasks.

Results: fBioAge accounted for cognitive variance beyond that explained by ChronAge also after controlling for medical diagnoses and blood markers.

Discussion: Compared with ChronAge, fBioAge was a stronger predictor of cognition during a broad part of the old adult span. fBioAge seems, in that respect, to have the potential to become a useful age indicator in future aging studies. 

Place, publisher, year, edition, pages
Sage Publications, 2018.
Keyword [en]
age indicator, cognitive abilities, cross-sectional
National Category
Gerontology, specialising in Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hj:diva-38917DOI: 10.1177/0898264318757147ISI: XYZScopus ID: 2-s2.0-85042099239Local ID: HHJARNISOAI: oai:DiVA.org:hj-38917DiVA, id: diva2:1185972
Available from: 2018-02-27 Created: 2018-02-27 Last updated: 2018-02-27

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Sternäng, OlaWahlin, Åke

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