Evidence map›Paper›PMID 34719491›Full record

ArticleJournal of Alzheimer's disease : JAD2021

Social Connectivity is Related to Mild Cognitive Impairment and Dementia.

Hannah Gardener, Bonnie Levin, Janet DeRosa, Tatjana Rundek, Clinton B Wright, Mitchell S V Elkind, Ralph L Sacco

Abstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. The role of per- and polyfluoroalkyl substances in cognitive impairment and dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  11. Review
  12. Article
  13. Racial Differences in the Association Between Loneliness and Cognitive Impairment Among Older Black and White Men.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
    Article
  14. Article
  15. Review
  16. Practical Strategies to Retain Radiologists.Journal of the American College of Radiology : JACR · 2024
    Article
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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

7 authors.

Hannah GardenerDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.
Bonnie LevinDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.
Janet DeRosaDepartment of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Tatjana RundekDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.
Clinton B WrightNational Institute of Neurological Disorders and Stroke, Bethesda, MD, USA.
Mitchell S V ElkindDepartment of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Ralph L SaccoDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.

Funding

STROKE INCIDENCE AND RISK FACTORS IN A TRI-ETHNIC REGIONR01NS029993 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ELKIND, MITCHELL S, SACCO, RALPH L. · 1993 to 2019
$19.2M
Vascular Determinants of Dementia and Cognitive Decline in a Tri-Ethnic RegionR56NS029993 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ELKIND, MITCHELL S, RUNDEK, TATJANA · 2021 to 2021
$537k
NINDS NIH HHS R01 NS029993NINDS NIH HHS R56 NS029993
6 · The paper itself

Abstract

backgroundEvidence supports a relationship between loneliness, social isolation, and dementia, but less is known about whether social connections confer protection against cognitive decline in disadvantaged neighborhoods.

objectiveThis longitudinal population-based study examines the relationship between social connectivity and cognitive impairment in a multi-ethnic cohort with low socioeconomic status and high vascular disease risk.

methodsNorthern Manhattan Study participants self-reported frequency of social visits, phone calls, satisfaction with social visits, number of friends, and loneliness at baseline, and were followed prospectively with a series of neuropsychological assessments. Social connectivity was examined in relation to incident mild cognitive impairment (MCI)/dementia using logistic regression adjusting for demographics and vascular risk factors.

resultsAmong 952 participants (mean age at first neuropsychological assessment = 69±8 years, 62% women, 17% Black, 13% white, 68% Hispanic), 24% developed MCI/dementia. Participants who had phone contact with friends/family 2 + times/week (91%) had a lower odds of MCI/dementia (OR = 0.52, 95% CI = 0.31-0.89), with no association for frequency of in-person visits. Compared to those who were neither socially isolated (≥3 friends) nor lonely (reference, 73%), those who were socially isolated and lonely (3%) had an increased odds of MCI/dementia (OR = 2.89, 95% CI = 1.19-7.02), but differences were not observed for those who were socially isolated but not lonely (10%, OR = 1.05, 95% CI = 0.60-1.84), nor those who were lonely but not isolated (11%, OR = 1.58, 95% CI = 0.97-2.59).

conclusionThis study raises the possibility that social connections confer some protection for cognitive health in the face of adversity and supports potential opportunities for community social interventions for improving cognition in disadvantaged populations.

Indexed as

Cognitive DysfunctionDementiaPovertyAgedCohort StudiesFemaleHumansLonelinessLongitudinal StudiesMaleNeuropsychological TestsRisk FactorsSocial InteractionSocial IsolationDementiadepressionepidemiologymild cognitive impairmentsocial isolation

Identifiers

PMID34719491
PMCPMC8783295

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.