Evidence map›Paper›PMID 37102417›Full record

SynthesisAlzheimer's & dementia : the journal of the Alzheimer's Association2023

Social connections and risk of incident mild cognitive impairment, dementia, and mortality in 13 longitudinal cohort studies of ageing.

Gowsaly Mahalingam, Suraj Samtani, Ben Chun Pan Lam, Darren M Lipnicki, Maria Fernanda Lima-Costa, Sergio Luis Blay, Erico Castro-Costa, Xiao Shifu, Maëlenn Guerchet, Pierre-Marie Preux and 30 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

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

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  8. Do all components of psychological well-being predict cognitive function?The journals of gerontology. Series B, Psychological sciences and social sciences · 2026
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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

40 authors.

Gowsaly MahalingamCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Suraj SamtaniCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Ben Chun Pan LamCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Darren M LipnickiCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Maria Fernanda Lima-CostaCenter for Studies in Public Health and Aging' René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil.
Sergio Luis BlayDepartment of Psychiatry, Federal University of Sao Paulo, Sao Paulo, São Paulo, Brazil.
Erico Castro-CostaCenter for Studies in Public Health and Aging' René Rachou Research Center, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil.
Xiao ShifuDepartment of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Maëlenn GuerchetInserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of chronic diseases in tropical zone, Institute of Epidemiology and Tropical Neurology, OmegaHealth, Limoges, France.
Pierre-Marie PreuxInserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of chronic diseases in tropical zone, Institute of Epidemiology and Tropical Neurology, OmegaHealth, Limoges, France.
Antoine GbessemehlanInserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of chronic diseases in tropical zone, Institute of Epidemiology and Tropical Neurology, OmegaHealth, Limoges, France.
Ingmar SkoogDepartment of Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP), at the University of Gothenburg, Mölndal, Sweden.
Jenna NajarDepartment of Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP), at the University of Gothenburg, Mölndal, Sweden.
Therese Rydberg SternerDepartment of Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, Centre for Ageing and Health (AGECAP), at the University of Gothenburg, Mölndal, Sweden.
Nikolaos Scarmeas1st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Mary YannakouliaDepartment of Nutrition and Dietetics, Harokopio University, Athens, Greece.
Themis DardiotisDepartment of Neurology, University of Thessaly, Larisa, Greece.
Ki-Woong KimDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, South Korea.
Steffi Riedel-HellerInstitute of Social Medicine, Occupational Health and Public Health (ISAP), Faculty of Medicine, University of Leipzig, Leipzig, Germany.
Susanne RöhrInstitute of Social Medicine, Occupational Health and Public Health (ISAP), Faculty of Medicine, University of Leipzig, Leipzig, Germany.
Alexander PabstInstitute of Social Medicine, Occupational Health and Public Health (ISAP), Faculty of Medicine, University of Leipzig, Leipzig, Germany.
Suzana ShaharCentre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Katya NumbersCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Mary GanguliDepartments of Psychiatry, Epidemiology, and Neurology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Tiffany F HughesYoungstown State University, Youngstown, Ohio, USA.
Chung-Chou H ChangDepartment of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Michael CroweDepartment of Psychology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Tze Pin NgYong Loo Lin School of Medicine, Department of Psychological Medicine, National University of Singapore, Singapore, Singapore.
Xinyi GweeYong Loo Lin School of Medicine, Department of Psychological Medicine, National University of Singapore, Singapore, Singapore.
Denise Qian Ling ChuaYong Loo Lin School of Medicine, Department of Psychological Medicine, National University of Singapore, Singapore, Singapore.
Joanna RymaszewskaDepartment of Psychiatry, Wroclaw Medical University, Wroclaw, Poland.
Karin Wolf-OstermannDepartment of Health Services and Nursing Science Research, Institute for Public Health and Nursing Research (IPP), University of Bremen, Bremen, Germany.
Anna-Karin WelmerAging Research Center & Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
Jean StaffordMRC Unit for Lifelong Health and Ageing, University College London, London, UK.
René MélisDepartment of Geriatrics, Radboud University Medical Centre, Nijmegen, Gelderland, The Netherlands.
Myrra Vernooij-DassenFaculty of Medical Sciences, Radboud University, Nijmegen, The Netherlands.
Yun-Hee JeonSusan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.
Perminder S SachdevCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
Henry BrodatyCentre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, UNSW Sydney, Australia.
SHARED consortium for the Cohort Studies of Memory in an International Consortium (COSMIC)

Funding

Mild Cognitive Impairment: A Prospective Community StudyR37AG023651 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Carmen Andreescu, MARY GANGULI · 2021 to 2026
$18.2M
A global epidemiology of cognitive impairment and dementia due to Alzheimer's disease and related disorders: the COSMIC CollaborationR01AG057531 · NIA · UNIVERSITY OF NEW SOUTH WALES · PI Perminder S SACHDEV · 2023 to 2026
$5.9M
COSMIC: An international consortium to identify risk and protective factors and biomarkers of cognitive ageing and dementia in diverse ethno-racial groups and geographical settingsRF1AG057531 · NIA · UNIVERSITY OF NEW SOUTH WALES · PI SACHDEV, PERMINDER S · 2017 to 2020
$2.9M
Medical Research Council MC_UU_00019/1Medical Research Council MC_UU_00019/2Medical Research Council MC_UU_00019/3NIA NIH HHS R01 AG057531NIA NIH HHS R37 AG023651NIA NIH HHS RF1 AG057531
6 · The paper itself

Abstract

introductionPrevious meta-analyses have linked social connections and mild cognitive impairment, dementia, and mortality. However, these used aggregate data from North America and Europe and examined a limited number of social connection markers.

methodsWe used individual participant data (N = 39271, M

resultsWe found associations between good social connections structure and quality and lower risk of incident mild cognitive impairment (MCI); between social structure and function and lower risk of incident dementia and mortality. Only in Asian cohorts, being married/in a relationship was associated with reduced risk of dementia, and having a confidante was associated with reduced risk of dementia and mortality. DISCUSSION: Different aspects of social connections - structure, function, and quality - are associated with benefits for healthy aging internationally. HIGHLIGHTS: Social connection structure (being married/in a relationship, weekly community group engagement, weekly family/friend interactions) and quality (never lonely) were associated with lower risk of incident MCI. Social connection structure (monthly/weekly friend/family interactions) and function (having a confidante) were associated with lower risk of incident dementia. Social connection structure (living with others, yearly/monthly/weekly community group engagement) and function (having a confidante) were associated with lower risk of mortality. Evidence from 13 longitudinal cohort studies of ageing indicates that social connections are important targets for reducing risk of incident MCI, incident dementia, and mortality. Only in Asian cohorts, being married/in a relationship was associated with reduced risk of dementia, and having a confidante was associated with reduced risk of dementia and mortality.

Indexed as

Cognitive DysfunctionDementiaAgedAgingCohort StudiesFemaleHumansLongitudinal StudiesMaledementialongitudinalmeta-analysismild cognitive impairmentmortalitysocial connections

Identifiers

PMID37102417
PMCPMC10603208

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.