Global Mental Health Workforce Composition and National Depression Prevalence: Cross-National Evidence From the WHO Mental Health Atlas 2020 and the Global Burden of Disease Study 2019.
{"title":"Global Mental Health Workforce Composition and National Depression Prevalence: Cross-National Evidence From the WHO Mental Health Atlas 2020 and the Global Burden of Disease Study 2019.","authors":"Christopher Lomas","doi":"10.1177/00207640261424406","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study examined whether the national availability and composition of mental health professionals, primarily non-psychiatrist providers, are associated with the population prevalence of depression, controlling for economic and demographic factors.</p><p><strong>Methods: </strong>A cross-sectional ecological analysis used data from 131 countries, sourcing workforce statistics from the WHO Mental Health Atlas 2020 and depression prevalence from GBD 2019. Ordinary Least Squares (OLS) regression models, adjusted for log Gross Domestic Product (GDP) per capita and urbanisation, assessed total workforce density, disaggregated provider densities (psychiatrists vs. psychologists) and the psychiatrist share of the workforce. Heteroskedasticity-consistent standard errors were applied.</p><p><strong>Results: </strong>Adjusted analysis showed a significant inverse association between overall workforce density and prevalence (β = -.031, <i>p</i> < .001) suggesting that higher workforce density correlates with lower depression prevalence. Psychologist density showed a stronger inverse association (β = -.038, <i>p</i> = .001) than psychiatrist density (β = -.024, <i>p</i> = .048) suggesting that greater availability of psychologists is more strongly correlated with lower depression prevalence. Critically, a higher proportion of psychiatrists was independently associated with increased depression prevalence (β = 1.89 percentage points, <i>p</i> = .032). Analysis of regional variation indicated that the inverse association between psychologist availability and depression prevalence was globally observed, with the steepest marginal effects noted in lower-income settings.</p><p><strong>Conclusion: </strong>Mental health workforce expansion is correlated with reduced depression, notably when systems include non-psychiatrist providers. These findings indicate that broadening service delivery capacity beyond psychiatric care could potentially improve the effectiveness of national mental health systems, pending further investigation.</p>","PeriodicalId":14304,"journal":{"name":"International Journal of Social Psychiatry","volume":" ","pages":"1680-1688"},"PeriodicalIF":2.7000,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Social Psychiatry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1177/00207640261424406","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/12 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"PSYCHIATRY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: This study examined whether the national availability and composition of mental health professionals, primarily non-psychiatrist providers, are associated with the population prevalence of depression, controlling for economic and demographic factors.
Methods: A cross-sectional ecological analysis used data from 131 countries, sourcing workforce statistics from the WHO Mental Health Atlas 2020 and depression prevalence from GBD 2019. Ordinary Least Squares (OLS) regression models, adjusted for log Gross Domestic Product (GDP) per capita and urbanisation, assessed total workforce density, disaggregated provider densities (psychiatrists vs. psychologists) and the psychiatrist share of the workforce. Heteroskedasticity-consistent standard errors were applied.
Results: Adjusted analysis showed a significant inverse association between overall workforce density and prevalence (β = -.031, p < .001) suggesting that higher workforce density correlates with lower depression prevalence. Psychologist density showed a stronger inverse association (β = -.038, p = .001) than psychiatrist density (β = -.024, p = .048) suggesting that greater availability of psychologists is more strongly correlated with lower depression prevalence. Critically, a higher proportion of psychiatrists was independently associated with increased depression prevalence (β = 1.89 percentage points, p = .032). Analysis of regional variation indicated that the inverse association between psychologist availability and depression prevalence was globally observed, with the steepest marginal effects noted in lower-income settings.
Conclusion: Mental health workforce expansion is correlated with reduced depression, notably when systems include non-psychiatrist providers. These findings indicate that broadening service delivery capacity beyond psychiatric care could potentially improve the effectiveness of national mental health systems, pending further investigation.
期刊介绍：
The International Journal of Social Psychiatry, established in 1954, is a leading publication dedicated to the field of social psychiatry. It serves as a platform for the exchange of research findings and discussions on the influence of social, environmental, and cultural factors on mental health and well-being. The journal is particularly relevant to psychiatrists and multidisciplinary professionals globally who are interested in understanding the broader context of psychiatric disorders and their impact on individuals and communities.
Social psychiatry, as a discipline, focuses on the origins and outcomes of mental health issues within a social framework, recognizing the interplay between societal structures and individual mental health. The journal draws connections with related fields such as social anthropology, cultural psychiatry, and sociology, and is influenced by the latest developments in these areas.
The journal also places a special emphasis on fast-track publication for brief communications, ensuring that timely and significant research can be disseminated quickly. Additionally, it strives to reflect its international readership by publishing state-of-the-art reviews from various regions around the world, showcasing the diverse practices and perspectives within the psychiatric disciplines. This approach not only contributes to the scientific understanding of social psychiatry but also supports the global exchange of knowledge and best practices in mental health care.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
