Evidence map›Paper›PMID 28658937›Full record

ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2020

Loneliness, Social Integration, and Incident Dementia Over 6 Years: Prospective Findings From the English Longitudinal Study of Ageing.

Snorri Bjorn Rafnsson, Martin Orrell, Eleonora d'Orsi, Eef Hogervorst, Andrew Steptoe

Abstract read
In one paragraph

Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

122 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Loneliness and Plasma Biomarkers of Neurodegeneration in Community-Dwelling Older Adults: Cross-Sectional and Longitudinal Analyses.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2026
    Article
  5. Article
  6. Cognitive Engagement and Dementia Risk: A Dose-Response Comparison of Nursing Home and Community Residents.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Exploring the influence of loneliness on cognitive decline: differential effects in Black and White older adults.The journals of gerontology. Series B, Psychological sciences and social sciences · 2025
    Article
  12. Article
  13. Article
  14. Social Isolation, Loneliness, and Cognitive Health.Clinics in geriatric medicine · 2025
    Review
  15. Review
  16. Cumulative loneliness and memory function among U.S. older adults: the role of depressive symptoms.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Article
  17. Article
  18. "I don't want to make trouble": Emotional Distress, Disconnection, and Loneliness Among Older People in China.The journals of gerontology. Series B, Psychological sciences and social sciences · 2025
    Article
  19. Article
  20. Article

62 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Snorri Bjorn RafnssonDepartment of Epidemiology and Public Health, University College London, UK.
Martin OrrellInstitute of Mental Health, University of Nottingham, UK.
Eleonora d'OrsiDepartment of Public Health, Universidade Federal de Santa Catarina, Florianópolis, Brazil.
Eef HogervorstSchool of Sport, Exercise and Health Sciences, Loughborough University, UK.
Andrew SteptoeDepartment of Epidemiology and Public Health, University College London, UK.

Funding

Project-001R01AG017644 · NIA · UNIVERSITY OF LONDON INST OF NEUROLOGY · PI Andrew Steptoe · 2000 to 2026
$56.2M
British Heart FoundationDepartment of Health ES/L001802/1NIA NIH HHS R01 AG017644
6 · The paper itself

Abstract

objectivesSocial relationships are important for the maintenance of cognitive function at older ages, with both objective features of social networks and perceived social connections (loneliness) being relevant. There is limited evidence about how different aspects of social experience predict diagnosed dementia.

methodsThe sample comprised 6,677 dementia-free individuals at baseline (2004) from the English Longitudinal Study of Ageing. Baseline information on loneliness, number of close relationships, marital status, and social isolation (contact with family and friends and participation in organizations) was analyzed in relation to incident dementia over an average 6.25 years using Cox regression, controlling for potential confounding factors.

resultsTwo hundred twenty participants developed dementia during follow-up. In multivariable analyses, dementia risk was positively related to greater loneliness (hazard ratio 1.40, 95% confidence interval 1.09-1.80, p = .008), and inversely associated with number of close relationships (p < .001) and being married (p = .018). Sensitivity analyses testing for reverse causality and different criteria for diagnosing dementia confirmed the robustness of these findings. There was no association with social isolation. DISCUSSION: Dementia risk is associated with loneliness and having fewer close relationships in later life. The underlying mechanisms remain to be elucidated, but efforts to enhance older peoples' relationship quality may be relevant to dementia risk.

Indexed as

AgingLonelinessSocial IntegrationAgedAged, 80 and overDementiaEnglandFemaleHumansIncidenceLongitudinal StudiesMaleMiddle AgedDementiaLonelinessLongitudinalSocial isolationSocial relationships

Identifiers

PMID28658937
PMCPMC6909434

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.