Evidence map›Paper›PMID 33893182›Full record

SynthesisJournal of epidemiology and community health2021

Health of people experiencing co-occurring homelessness, imprisonment, substance use, sex work and/or severe mental illness in high-income countries: a systematic review and meta-analysis.

Emily J Tweed, Rachel M Thomson, Dan Lewer, Colin Sumpter, Amir Kirolos, Paul M Southworth, Amrit Kaur Purba, Robert W Aldridge, Andrew Hayward, Alistair Story and 2 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of epidemiology and community health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 6 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

38 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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  12. Revista panamericana de salud publica = Pan American journal of public health · 2026
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  14. Revista panamericana de salud publica = Pan American journal of public health · 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

12 authors.

Emily J TweedMRC/CSO Social and Public Health Sciences Unit, University of Glasgow Institute of Health and Wellbeing, Glasgow, UK emily.tweed@glasgow.ac.uk.ORCID 0000-0001-6659-812X
Rachel M ThomsonMRC/CSO Social and Public Health Sciences Unit, University of Glasgow Institute of Health and Wellbeing, Glasgow, UK.
Dan LewerCollaborative Centre for Inclusion Health, University College London, London, UK.ORCID 0000-0003-3698-7196
Colin SumpterDepartment of Public Health, NHS Forth Valley, Stirling, UK.
Amir KirolosDepartment of Clinical Infection, Microbiology & Immunology, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool, UK.
Paul M SouthworthDepartment of Public Health, NHS Dumfries and Galloway, Dumfries, UK.
Amrit Kaur PurbaMRC/CSO Social and Public Health Sciences Unit, University of Glasgow Institute of Health and Wellbeing, Glasgow, UK.
Robert W AldridgeInstitute of Health Informatics, University College London, London, UK.
Andrew HaywardCollaborative Centre for Inclusion Health, University College London, London, UK.
Alistair StoryFind and Treat Service, University College London Hospitals NHS Foundation Trust, London, UK.
Stephen W HwangCentre for Urban Health Solutions, St. Michael's Hospital, Toronto, Ontario, Canada.
Srinivasa Vittal KatikireddiMRC/CSO Social and Public Health Sciences Unit, University of Glasgow Institute of Health and Wellbeing, Glasgow, UK.ORCID 0000-0001-6593-9092

Funding

Chief Scientist Office CAF/17/11Chief Scientist Office SCAF/15/02Chief Scientist Office SPHSU13Chief Scientist Office SPHSU15Chief Scientist Office SPHSU17Department of Health DRF-2018-11-ST2-016Medical Research Council MC_UU_00022/2Medical Research Council MC_UU_12017/13Medical Research Council MC_UU_12017/15Wellcome Trust 203919/Z/16/ZWellcome Trust 206602Wellcome Trust 206602/Z/17/ZWellcome Trust 218105/Z/19/Z
6 · The paper itself

Abstract

backgroundPeople affected by homelessness, imprisonment, substance use, sex work or severe mental illness experience substantial excess ill health and premature death. Though these experiences often co-occur, health outcomes associated with their overlap have not previously been reviewed. We synthesised existing evidence on mortality, morbidity, self-rated health and quality of life among people affected by more than one of these experiences.

methodsIn this systematic review and meta-analysis, we searched Medline, Embase, and PsycINFO for peer-reviewed English-language observational studies from high-income countries published between 1 January 1998 and 11 June 2018. Two authors undertook independent screening, with risk of bias assessed using a modified Newcastle-Ottawa Scale. Findings were summarised by narrative synthesis and random-effect meta-analysis.

resultsFrom 15 976 citations, 2517 studies underwent full-text screening, and 444 were included. The most common exposure combinations were imprisonment/substance use (31% of data points) and severe mental illness/substance use (27%); only 1% reported outcomes associated with more than two exposures. Infections were the most common outcomes studied, with blood-borne viruses accounting for 31% of all data points. Multiple exposures were associated with poorer outcomes in 80% of data points included (sign test for effect direction, p<0.001). Meta-analysis suggested increased all-cause mortality among people with multiple versus fewer exposures (HR: 1.57 and 95% CI: 1.38 to 1.77), though heterogeneity was high.

conclusionPeople affected by multiple exclusionary processes experience profound health inequalities, though there are important gaps in the research landscape. Addressing the health needs of these populations is likely to require co-ordinated action across multiple sectors, such as healthcare, criminal justice, drug treatment, housing and social security. PROSPERO REGISTRATION NUMBER: CRD42018097189.

Indexed as

Ill-Housed PersonsMental DisordersSubstance-Related DisordersDeveloped CountriesHumansObservational Studies as TopicQuality of LifeSex Workdrug misusehealth inequalitieshomelessnessmental health

Identifiers

PMID33893182
PMCPMC8458085

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.