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The effect of language skills on dementia in a Swedish longitudinal cohort
Umeå University, Faculty of Social Sciences, Department of Psychology. Cardiff University.ORCID iD: 0000-0001-5546-3270
Umeå University, Faculty of Social Sciences, Department of Psychology.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Psychiatry.ORCID iD: 0000-0002-8114-7615
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) ɛ4 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
Keywords [en]
Bilingualism, Dementia, Longitudinal design, Aging, Cognitive reserve
National Category
Applied Psychology
Identifiers
URN: urn:nbn:se:umu:diva-110080DOI: 10.1075/lab.14031.ljuISI: 000375751500009Scopus ID: 2-s2.0-84969801960OAI: oai:DiVA.org:umu-110080DiVA, id: diva2:861044
Note

Special Issue: Aging and Bilingualism

Available from: 2015-10-15 Created: 2015-10-15 Last updated: 2023-03-24Bibliographically approved

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Ljungberg, Jessika K.Hansson, PatrikAdolfsson, Rolf

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