Prevalence Studies in Schizophrenia
Abstract
Over 70 prevalence studies of schizophrenia published since 1948 are reviewed. Despite problems of method, the studies suggest that there may be significant differences in prevalence among different populations and that prevalence may change over time. Further research is needed on how much differences in diagnosis or the course of schizophrenia contribute to the variable prevalence rates. The paper suggests the following as areas for additional enquiry: a possible north-south gradient, special populations (e.g. American Hutterites, northern Swedes, western Irish, castes in India) and ongoing case registers in areas of suspected high and low prevalence.
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The median prevalence estimates from this review are congruent with Torrey's earlier narrative review overall prevalence estimate of 4.6 per 1,000.
“These estimates are congruent with an earlier narrative review of 70 studies by Torrey [8], who reported an overall prevalence estimate of 4.6 per 1,000.”
From A Systematic Review of the Prevalence of Schizophrenia (2005) · cites this paper as [8]
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- Authors
- Torrey, E. F.
- Venue
- British Journal of Psychiatry
- Publisher
- Royal College of Psychiatrists
- Published
- 1987-05
- Volume
- 150
- Issue
- 5
- Pages
- 598-608
- ISSN
- 0007-1250 (ISSN-L)
- 1472-1465
- OpenAlex
- W2130679522
- Cited by
- 239
- References
- 107
- Citations by year
- 2026: 1 · 2024: 3 · 2023: 3 · 2022: 1 · 2021: 1 · 2020: 4 · 2019: 3 · 2018: 1 · 2017: 6 · 2016: 2 · 2015: 5 · 2014: 9 · 2013: 6 · 2012: 4
- FWCI
- 1.60
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The British Journal of Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
- Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
- Keywords
- schizophrenia, prevalence, diagnostic differences, course of schizophrenia, north-south gradient, special populations, Hutterites, caste populations, case registry
- MeSH terms
- Adult, Cross-Sectional Studies, Humans, Male, Prognosis, Schizophrenia, Seasons, Time Factors
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