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Overweight in Midlife Is Related to Lower Cognitive Function 30 Years Later: A Prospective Study with Longitudinal Assessments
Jönköping University, School of Health and Welfare, HHJ. Ageing - living conditions and health. Jönköping University, School of Health and Welfare, HHJ, Institute of Gerontology.
2010 (English)In: Dementia and Geriatric Cognitive Disorders, ISSN 1420-8008, E-ISSN 1421-9824, Vol. 29, no 6, p. 543-552Article in journal (Refereed) Published
Abstract [en]

Aim: To examine if the body mass index (BMI) in midlife is related to cognitive function 30 years later in a dementia-free sample. Methods: BMI was reported in 1963 at age 50–60 years, and cognitive abilities were examined 30 years later in a longitudinal design with 5 measurement occasions at 2-year intervals (n = 417). The cognitive abilities examined included tests of long-term memory, short-term memory, speed, verbal and spatial ability. Results: Multilevel modeling adjusting for demographic and lifestyle factors, and relevant diseases showed that a higher BMI in midlife predicted lower test performance 30 years later. Significant associations between BMI and level of performance were found in all cognitive abilities; however, a higher midlife BMI was not associated with steeper cognitive decline. Conclusion: Our results indicate that midlife overweight is related to lower overall cognitive function in old age. The fact that BMI-related effects were noted in mean-level cognitive performance, whereas only one ability showed differences in slopes, suggests that the negative effect of overweight has an onset before the entry into very old age.

Place, publisher, year, edition, pages
S. Karger, 2010. Vol. 29, no 6, p. 543-552
Keywords [en]
overweight cognition body mass index adiposity obesity mental ability
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URN: urn:nbn:se:hj:diva-12779DOI: 10.1159/000314874ISI: 000280476200011PubMedID: 20606436Scopus ID: 2-s2.0-77954191017OAI: oai:DiVA.org:hj-12779DiVA, id: diva2:329181
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Octo-twin, Svenska tvillingregistretAvailable from: 2010-07-08 Created: 2010-07-08 Last updated: 2019-04-09Bibliographically approved

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Dahl, Anna

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