ReviewSocial psychiatry and psychiatric epidemiology2020
Understanding loneliness in the twenty-first century: an update on correlates, risk factors, and potential solutions.
Review in Social psychiatry and psychiatric epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 163 papers, 11 of them syntheses that pooled it.
What it found
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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.
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.
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Who cites it
163 citing papers in PubMed, 11 syntheses or guidelines pooled it, 415 citations in OpenAlex.
- Loneliness among adults at the end of life: A systematic review of prevalence and correlates.Palliative medicine · 2026Pooled it
- Loneliness and Its Associated Factors in Individuals With Intellectual Disability and Borderline Intellectual Functioning: A Systematic Review.Journal of applied research in intellectual disabilities : JARID · 2026Pooled it
- Impact of loneliness on health in healthy populations: A meta-analysis.British journal of health psychology · 2026Pooled it
- Loneliness without an epidemic: gendered pathways, health consequences, and intervention gaps among men in the United States.Frontiers in public health · 2026Pooled it
- The Effectiveness of Preventative Interventions to Reduce Mental Health Problems in at-risk Children and Young People: A Systematic Review of Reviews.Journal of prevention (2022) · 2024Pooled it
- The Association Between Child Maltreatment and Loneliness Across the Lifespan: A Systematic Review and Multilevel Meta-Analysis.Child maltreatment · 2024Pooled it
- Loneliness and Cognitive Function in Older Adults Without Dementia: A Systematic Review and Meta-Analysis.Journal of Alzheimer's disease : JAD · 2023Pooled it
- Are social isolation, lack of social support or loneliness risk factors for cardiovascular disease in Australia and New Zealand? A systematic review and meta-analysis.Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals · 2022Pooled it
- The prevalence of loneliness across 113 countries: systematic review and meta-analysis.BMJ (Clinical research ed.) · 2022Pooled it
- Loneliness as an active ingredient in preventing or alleviating youth anxiety and depression: a critical interpretative synthesis incorporating principles from rapid realist reviews.Translational psychiatry · 2021Pooled it
- Loneliness before and during the COVID-19 pandemic: A systematic review with meta-analysis.The American psychologistPooled it
- The KIND Challenge community intervention to reduce loneliness and social isolation, improve mental health, and neighbourhood relationships: an international randomized controlled trial.Social psychiatry and psychiatric epidemiology · 2025Trial
- What makes a lonely child: environmental, health, and multimodal neuroimaging correlates of prospective loneliness in the ABCD study.Journal of child psychology and psychiatry, and allied disciplines · 2026Article
- Factors Associated with Professional Mental Health Counseling Among Korean Adults: An Age-Stratified Analysis Using the Andersen Behavioral Model.Healthcare (Basel, Switzerland) · 2026Article
- Loneliness around the world: patterns, predictors, and well-being implications.European journal of epidemiology · 2026Article
- Roles of Self-Stigma and Meaning in the Relationship Between Age and Loneliness: A Perspective From Gerotranscendence.PsyCh journal · 2026Article
- Loneliness From the Digital Mental Health Practitioners' Perspective: Thematic Analysis of Semistructured Interviews.JMIR formative research · 2026Article
- Eating Together, Eating Alone: A Cross-Sectional Survey of Associations Between Social Eating Contexts, Mealtime Emotions, Technology Use, and Loneliness in UK University Students.International journal of environmental research and public health · 2026Article
- Loneliness in Chronic Obstructive Pulmonary Disease: A Multidimensional Determinant of Clinical Outcomes and Disease Management.Journal of clinical medicine · 2026Review
- Cultural Competence and Loneliness: Unveiling Hidden Connections Among Saudi Nurses.Behavioral sciences (Basel, Switzerland) · 2026Article
103 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeLoneliness is increasingly recognised as the next critical public health issue. A plausible reason for this concern may be related to emerging societal trends affecting the way we relate, communicate, and function in our social environment. In 2006, a prominent review of the clinical significance of loneliness was published. However, there has not been a comprehensive update on known and emerging risk factors and correlates of loneliness since then. Furthermore, there is no conceptual model that has been developed to better account for the complexity of loneliness and to inform the development of evidence-based solutions as we challenge the issues of the twenty-first century.
methodsWe reviewed the current literature to identify either known or emerging risk factors and correlates of loneliness since 2006. This includes new or known evidence on: (1) demography; (2) health, including physical health; mental health; cognitive health; brain, biology, and genetics; and (3) socio-environmental factors including digital communication and the workplace.
resultsWe synthesized the literature according to a new proposed conceptual model of loneliness which showed the interplay between known and emerging correlates and risk factors from demography, health, to socio-environmental factors. In the conceptual model of loneliness, we illustrated how solutions can be delivered and tailored to an individual based on their life circumstances and preferences.
conclusionWe concluded by making specific recommendations in advancing our scientific understanding of loneliness. Our knowledge can only be deepened if we increase scientific rigour via accounting for confounding variables and using longitudinal, multi-disciplinary, and multiple methodologies in research. We also call for the rigorous evaluation of programs targeting loneliness.
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Registered trials
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.