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March 18, 2026Epidemiologic ReviewsOpen Access

Community and societal influences on loneliness and social isolation among young adults: A systematic review of observational studies

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Authors

DMDrew MeehanAGAnne GrunseitNHNeta HaGani

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Overview

This systematic review reveals community and societal factors impacting loneliness in young adults, suggesting implications for public health strategies.

Key Points

  • The review aims to understand the impact of community and societal factors on loneliness and social isolation in young adults aged 18–30.
  • Conducted a systematic review of observational studies
  • Searched five databases for relevant literature
  • Analyzed thirteen eligible studies focusing on community and societal exposures to loneliness and social isolation
  • Carried out structured narrative synthesis of findings
  • Consistent associations between community characteristics (trust, safety, atmosphere) and loneliness were found
  • Higher neighbourhood cohesion and belonging were protective against loneliness
  • Neighbourhood disorder and perceived discrimination correlated with increased loneliness
  • Evidence for social isolation was limited and heterogeneous, with area-level disadvantage showing some relevance

Cite This Study

Meehan et al. (2026) studied this question.

synapsesocial.com/papers/69ba43f74e9516ffd37a5b59https://doi.org/10.1093/epirev/mxag007
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1An exploratory study of factors associated with social isolation and loneliness in a community sample2020 · 11 citations
  2. 2Loneliness, Social Isolation, and Chronic Disease Outcomes in Adults: A Systematic Review2026
  3. 3Community Support Systems and Their Influence on Mental Health Outcomes Among Adults2026
  4. 4Predictors of older adults’ objectively measured social isolation: A systematic review of observational studies2021 · 53 citations
  5. 5A global perspective on risk factors for social isolation in community-dwelling older adults: A systematic review and meta-analysis2023 · 30 citations