Evidence map›Paper›PMID 34449870›Full record

ArticleJournal of the American Geriatrics Society2021

A peer intervention reduces loneliness and improves social well-being in low-income older adults: A mixed-methods study.

Ashwin A Kotwal, Shannon M Fuller, Janet J Myers, Daniel Hill, Soe Han Tha, Alexander K Smith, Carla M Perissinotto

Abstract readEvaluation Study
In one paragraph

Article in Journal of the American Geriatrics Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

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

  1. Additional interventions for enhancing the quality-of-life of older adults using hearing aids: a systematic review and narrative synthesis.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Pooled it
  2. Pooled it
  3. Trial
  4. Loneliness, Self-Efficacy and Adaptive Coping: Mixed Methods Analysis of Mediation in a Peer Support Intervention for Depression.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2025
    Trial
  5. A Mixed Methods Effectiveness Study of a Peer Support Intervention for Older Adults During the COVID-19 Pandemic: Results of a Randomized Clinical Trial.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2025
    Trial
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  7. Loneliness in the End-of-Life: Now What?Journal of the American Geriatrics Society · 2026
    Article
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  20. Geroscience: Aging and Oral Health Research.Advances in dental research · 2023
    Review
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.

Ashwin A KotwalDivision of Geriatrics, Department of Medicine, University of California, San Francisco, California, USA.ORCID 0000-0002-6137-8512
Shannon M FullerDivision of Prevention Science, Department of Medicine, University of California San Francisco, San Francisco, California, USA.
Janet J MyersDivision of Prevention Science, Department of Medicine, University of California San Francisco, San Francisco, California, USA.
Daniel HillCurry Senior Center, San Francisco, California, USA.
Soe Han ThaDivision of Geriatrics, Department of Medicine, University of California, San Francisco, California, USA.
Alexander K SmithDivision of Geriatrics, Department of Medicine, University of California, San Francisco, California, USA.
Carla M PerissinottoDivision of Geriatrics, Department of Medicine, University of California, San Francisco, California, USA.

Funding

VARC CoreP30AG044281 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KENNETH E. COVINSKY, MICHAEL A. STEINMAN · 2013 to 2026
$19.9M
Loneliness and Social Isolation Among Older Adults with and without Alzheimer's Disease and Related Dementia in the Last Years of LifeK23AG065438 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KOTWAL, ASHWIN AJIT · 2020 to 2024
$809k
Loneliness and Social Isolation among Older Adults in the Last Years of LIfeR03AG064323 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KOTWAL, ASHWIN AJIT · 2019 to 2020
$242k
NIA NIH HHS 03AG064323NIA NIH HHS K23 AG065438NIA NIH HHS K23AG065438NIA NIH HHS P30 AG044281NIA NIH HHS R03 AG064323NIH HHS P30AG044281
6 · The paper itself

Abstract

backgroundEvidence-based interventions addressing loneliness and social isolation are needed, including among low-income, community-dwelling older adults of diverse racial and ethnic backgrounds. Our objective was to assess the effect of a peer intervention in addressing loneliness, isolation, and behavioral health needs in this population.

methodsWe conducted a mixed-method, two-year longitudinal study of a peer-outreach intervention in 74 low-income older adults recruited via an urban senior center in San Francisco. Structured participant surveys were conducted at baseline and every 6 months for up to 2 years. Outcomes included loneliness (3-item UCLA loneliness scale), social interaction (10-item Duke index), self-perceived socializing barriers (range: 0-10), and depression (PHQ-2 screen). Data were analyzed using mixed-effects linear and logistic regression adjusted for age and gender. Qualitative, semi-structured interviews with participants (N = 15) and peers (N = 6) were conducted in English and Spanish and analyzed thematically.

resultsParticipants were on average 71 years old (range: 59-96 years), with 58% male, 15% LGBT, 18% African American, 19% Latinx, 8% Asian, 86% living alone, and 36% with an ADL impairment. On average, 43 contact visits (IQR: 31-97 visits) between participants and peers occurred over the first year. Loneliness scores decreased by, on average, 0.8 points over 24 months (p = 0.015). Participants reported reduced depression (38%-16%, p < 0.001) and fewer barriers to socializing (1.5 fewer, p < 0.001). Because of the longitudinal relationship and matching of characteristics of peers to participants, participants reported strong feelings of kinship, motivations to reach out in other areas of life, and improved mood.

conclusionDiverse older adults in an urban setting participating in a longitudinal peer program experienced reduced loneliness, depression, and barriers to socializing. Matching by shared backgrounds facilitated rapport and bonding between participants and peers.

Indexed as

Health Services for the AgedPeer GroupAgedAged, 80 and overDepressionFeasibility StudiesFemaleHumansIndependent LivingLogistic ModelsLonelinessLongitudinal StudiesMaleMiddle AgedPovertyProgram Evaluationcommunity-basedinterventionlonelinesspeersocial isolation

Identifiers

PMID34449870
PMCPMC8648986

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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.