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2009:
Paillard-Borg Stéphanie; Fratiglioni Laura; Winblad Bengt; Wang Hui-Xin
Leisure activities in late life in relation to dementia risk: principal component analysis.
Dementia and geriatric cognitive disorders 2009;
28(
2):.
AIMS: To explore the underlying dimensions of a set of interrelated lifestyle factors and test the hypothesis that an active lifestyle may protect against dementia. METHODS: The study population consisted of 776 participants aged >or=75 years who were dementia-free at both baseline and the first follow-up examinations. Participation in leisure activities was assessed at baseline of the survey, and principal component analysis was used to identify their underlying factors. RESULTS: During the 9-year follow-up from exposure assessment, 212 subjects developed dementia. Higher factor scores of physical, mental, and social dimensions of an active lifestyle was each related to a lower dementia risk. A significant dose-response association between participation in the diverse dimensions and lower dementia risk was observed. CONCLUSION: An active lifestyle may protect older people against dementia, and the higher level of engagement the stronger protection.
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