Is the global prevalence rate of adult mental illness increasing? Systematic review and meta‐analysis
D Richter, A Wall, A Bruen… - Acta Psychiatrica …, 2019 - Wiley Online Library
D Richter, A Wall, A Bruen, R Whittington
Acta Psychiatrica Scandinavica, 2019•Wiley Online LibraryObjectives The question whether mental illness prevalence rates are increasing is a
controversially debated topic. Epidemiological articles and review publications that look into
this research issue are often compromised by methodological problems. The present study
aimed at using a meta‐analysis technique that is usually applied for the analysis of
intervention studies to achieve more transparency and statistical precision. Methods We
searched PubMed, Psyc INFO, CINAHL, Google Scholar and reference lists for repeated …
controversially debated topic. Epidemiological articles and review publications that look into
this research issue are often compromised by methodological problems. The present study
aimed at using a meta‐analysis technique that is usually applied for the analysis of
intervention studies to achieve more transparency and statistical precision. Methods We
searched PubMed, Psyc INFO, CINAHL, Google Scholar and reference lists for repeated …
Objectives
The question whether mental illness prevalence rates are increasing is a controversially debated topic. Epidemiological articles and review publications that look into this research issue are often compromised by methodological problems. The present study aimed at using a meta‐analysis technique that is usually applied for the analysis of intervention studies to achieve more transparency and statistical precision.
Methods
We searched PubMed, PsycINFO, CINAHL, Google Scholar and reference lists for repeated cross‐sectional population studies on prevalence rates of adult mental illness based on ICD‐ or DSM‐based diagnoses, symptom scales and distress scales that used the same methodological approach at least twice in the same geographical region. The study is registered with PROSPERO (CRD42018090959).
Results
We included 44 samples from 42 publications, representing 1 035 697 primary observations for the first time point and 783 897 primary observations for the second and last time point. Studies were conducted between 1978 and 2015. Controlling for a hierarchical data structure, we found an overall global prevalence increase in odds ratio of 1.179 (95%‐CI: 1.065–1.305). A multivariate meta‐regression suggested relevant associations with methodological characteristics of included studies.
Conclusions
We conclude that the prevalence increase in adult mental illness is small, and we assume that this increase is mainly related to demographic changes.
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