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Meta-Analysis
. 2024 Jun;149(6):445-457.
doi: 10.1111/acps.13686. Epub 2024 Apr 2.

Problem gambling in psychotic disorders: A systematic review and meta-analysis of prevalence

Olivier Corbeil  1   2   3 , Élizabeth Anderson  3   4 , Laurent Béchard  1   2   3 , Charles Desmeules  3   5 , Maxime Huot-Lavoie  3   5 , Lauryann Bachand  4 , Sébastien Brodeur  2   3   5   6 , Pierre-Hugues Carmichael  7 , Christian Jacques  4   8 , Marco Solmi  9   10   11   12 , Isabelle Giroux  4   8 , Michel Dorval  1   13 , Marie-France Demers  1   2   3 , Marc-André Roy  2   3   5
Affiliations
Meta-Analysis

Problem gambling in psychotic disorders: A systematic review and meta-analysis of prevalence

Olivier Corbeil et al. Acta Psychiatr Scand. 2024 Jun.

Abstract

Introduction: Problem gambling (PBG) is more common in people with mental health disorders, including substance use, bipolar, and personality disorders, than in the general population. Although individuals with psychotic disorders might be expected to be more vulnerable to PBG, fewer studies have focused on this comorbidity. The aim of this review was to estimate the prevalence of PBG in people with psychotic disorders.

Methods: Medline (Ovid), EMBASE, PsycINFO (Ovid), CINAHL, CENTRAL, Web of science, and ProQuest were searched on November 1, 2023, without language restrictions. Observational and experimental studies including individuals with psychotic disorders and reporting the prevalence of PBG were included. Risk of bias was assessed using the Joanna Briggs Institute critical appraisal for systematic reviews of prevalence data. The pooled prevalence of PBG was calculated using a fixed effects generalized linear mixed model and presented through forest plots.

Results: Of 1271 records screened, 12 studies (n = 3443) were included. The overall prevalence of PBG was 8.7% (95% CI = 7.8%-9.7%, I2 = 69%). A lower prevalence was found in studies with a low risk of bias (5.6%; 95% CI = 4.4%-7.0%) compared with studies with a moderate risk of bias (10.4%; 95% CI = 9.2%-11.7%). Different methods used to assess PBG also contributed to the heterogeneity found.

Conclusion: This meta-analysis found substantial heterogeneity, partly due to the risk of bias of the included studies and a lack of uniformity in PBG assessment. Although more research is needed to identify those at increased risk for PBG, its relatively high prevalence warrants routine screening for gambling in clinical practice.

Keywords: gambling; meta‐analysis; prevalence; psychosis; schizophrenia.

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References

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