Cited by 18Dementia and Cognitive Impairment ResearchHealth disparities and outcomesAging and Gerontology Research

The impact of social networks and APOE ε4 on dementia among older adults: tests of possible interactions

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Wu, Jing, Hasselgren, Caroline, Zettergren, Anna, Zetterberg, Henrik, Blennow, Kaj, Skoog, Ingmar, Halleröd, Björn·2020·Aging & Mental Health

Abstract

Objectives: Emerging evidence suggests that social networks may protect against the development of dementia among older adults. In this study we analysed the association between social networks, the apolipoprotein E (APOE) ε4 allele, and dementia. We also investigated whether there were gender-specific patterns in this respect.Method: The analyses used population-based longitudinal data from Gothenburg, Sweden: the H70 Birth Cohort Study and the Prospective Population Study on Women (PPSW). A total of 580 individuals born in 1930 underwent semi-structured neuropsychiatric examinations in 2000–2001. Follow-up examinations were carried out in 2005–2006 and 2009–2010. The timing of dementia onset was analysed using Cox proportional hazards regression.Results: The presence of the APOE ε4 allele affected the risk of developing dementia in both genders. Among women, distant social networks had a protective effect on dementia, while among men the significant associations between close social networks and dementia did not remain after controlling for covariates. Significant interactions between social networks and the APOE ε4 allele were not found.Conclusion: Strong social networks do not seem to moderate the increased risk of dementia implied by the APOE ε4 allele. Nevertheless, our results underline the importance of strong social networks in postponing dementia onset and indicate that their impact may differ among men and women.

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Crossref · 10.1080/13607863.2018.1531368

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Authors
Wu, J., Hasselgren, C., Zettergren, A., Zetterberg, H., Blennow, K., Skoog, I., & Halleröd, B.
Affiliations
  • University of Gothenburg (SE)
  • Sahlgrenska University Hospital (SE)
  • Department of Sociology and Work Science, University of Gothenburg, Gothenburg, Sweden;
Corresponding author
Wu, Jing
Venue
Aging & Mental Health
Published
2018-12-27
Volume
24
Issue
3
Pages
395-404
ISSN
  • 1360-7863 (ISSN-L)
  • 1364-6915
OpenAlex
W2906929042
Cited by
18
References
93
Citations by year
2025: 3 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 2
FWCI
1.18
Type
journal article
Language
en
Open access
Locations
  • Aging & Mental Health (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • the Stena Foundation
  • the Swedish Research Council (2015-02830, 2013-8717)
  • the Swedish Research Council for Health, Working Life and Welfare (2004-0145, 2006-0596, 2008-1111, 2010-0870, 2013-1202, 2013-2300, 2013-2496)
  • the Alzheimer's Association Zenith Award (ZEN-01-3151)
  • the Alzheimer's Association Stephanie B. Overstreet Scholars (IIRG-00-2159)
  • Sahlgrenska University Hospital
  • Alzheimerfonden
  • Hjärnfonden
  • Konung Gustaf V:s och Drottning Victorias Frimurarestiftelse
  • Eivind och Elsa K:son Sylvans Stiftelse
  • Stiftelsen Söderström-Königska Sjukhemmet
  • Stiftelsen för Gamla Tjänarinnor
  • Handlanden Hjalmar Svenssons Forskningsfond
  • Stiftelsen Professor Bror Gadelius’ Minnesfond
  • the Swedish Brain Foundation
  • the Swedish Alzheimer Foundation
  • the Torsten Söderberg Foundation
  • the Swedish Society of Medicine
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Social Sciences › Health › Health disparities and outcomes
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Aging and Gerontology Research
Keywords
social networks, APOE ε4, dementia, older adults, gender differences, gene-environment interaction, dementia onset
MeSH terms
Aged, Aged, 80 and over, Alleles, Dementia, Female, Genotype, Humans, Male, Prospective Studies, Risk Factors, Sweden, Apolipoprotein E4, Social Networking

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