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An active lifestyle postpones dementia onset by more than one year in very old adults
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Centre for Health Equity Studies (CHESS).
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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2012 (English)In: Journal of Alzheimer's Disease, ISSN 1387-2877, E-ISSN 1875-8908, Vol. 31, no 4, 835-842 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this study was to test the hypothesis that an active lifestyle delays age at dementia onset. This study included 388 incident dementia cases (DSM-III-R criteria) that developed over a 9-year follow-up period among 1,375 baseline dementia-free community dwellers with good cognitive function (MMSE > 23) (mean age = 81.2) from the Kungsholmen Project. An active lifestyle was defined as participation in mental, physical, or social activity. We used linear regression models to estimate influence of baseline active lifestyle on age at onset of incident dementia and general linear models to estimate mean age at dementia onset. Age at onset of dementia was significantly older in persons who had higher levels of participation in mental, physical, or social activity (beta: 0.18, 0.29 and 0.23 respectively, p < 0.001 for all the activities) independent of education, medical condition, functional status, and other confounders including APOE. When the three types of activities were integrated into an index, we found that the broader the spectrum of participation in the activities, the later the onset of disease (beta = 0.93, p = 0.01 for participating in two activities, and beta = 1.42, p < 0.001 for three activities). There were 17 months difference in mean age at dementia onset between the inactive group and the most active group. An active lifestyle operates as a protective factor for dementia by delaying the clinical onset of the disease. These findings highlight the relevance of encouraging old adults to have active lifestyles, which could have a great impact on public health.

Place, publisher, year, edition, pages
2012. Vol. 31, no 4, 835-842 p.
Keyword [en]
Age at dementia onset, dementia, leisure activities, lifestyle, old adults
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-82400DOI: 10.3233/JAD-2012-120724ISI: 000308809200016OAI: oai:DiVA.org:su-82400DiVA: diva2:567543
Note

AuthorCount:5;

Available from: 2012-11-13 Created: 2012-11-13 Last updated: 2017-12-07Bibliographically approved

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