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The effect of language skills on dementia in a Swedish longitudinal cohort
Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
Number of Authors: 4
2016 (English)In: Linguistic Approaches to Bilingualism, ISSN 1879-9264, E-ISSN 1879-9272, Vol. 6, no 1-2, p. 190-204Article in journal (Refereed) Published
Abstract [en]

Recent findings indicate that bilingualism delay the onset of dementia. Using data from the Betula longitudinal cohort study on memory, health and aging (www.betula.su.se) the issue of a possible protective effect of bilingualism was addressed. Monolingual (n = 736) and bilingual (n = 82) participants (= 60 years) without dementia at inclusion were followed for incident dementia over a time-period up to 10 years. In total, 112 participants developed dementia. Analyses were performed with Cox proportional hazards regression adjusted for age, sex, and presence/absence of the Apolipoprotein E (APOE) epsilon 4 allele, with dementia outcome as the dependent variable. Results showed no delayed onset of dementia in bilinguals compared to monolinguals. However, because of the findings from a study using participants from the same population showing beneficial longitudinal effects of bilingualism on episodic memory; we argue that our results may depend on the frequency of use of the second language after retirement.

Place, publisher, year, edition, pages
2016. Vol. 6, no 1-2, p. 190-204
Keyword [en]
Bilingualism, Dementia, Longitudinal design, Aging, Cognitive reserve
National Category
Languages and Literature Psychology Gerontology, specialising in Medical and Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-130996DOI: 10.1075/lab.14031.ljuISI: 000375751500009OAI: oai:DiVA.org:su-130996DiVA: diva2:935180
Available from: 2016-06-10 Created: 2016-06-09 Last updated: 2018-01-10Bibliographically approved

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