Cannabis use and misuse prevalence among people with psychosis

Green, Bob, Young, Ross and Kavanagh, David (2005) Cannabis use and misuse prevalence among people with psychosis. British Journal of Psychiatry, 187 4: 306-313. doi:10.1192/bjp.187.4.306

Author Green, Bob
Young, Ross
Kavanagh, David
Title Cannabis use and misuse prevalence among people with psychosis
Journal name British Journal of Psychiatry   Check publisher's open access policy
ISSN 0007-1250
Publication date 2005-10
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1192/bjp.187.4.306
Volume 187
Issue 4
Start page 306
End page 313
Total pages 12
Editor P. Tyrer
Place of publication London, U.K.
Publisher Royal College Of Psychiatrists
Collection year 2005
Language eng
Subject C1
321021 Psychiatry
730211 Mental health
Formatted abstract
Increasing attention has been given by researchers to cannabis use in individuals with psychosis. As psychoses are relatively low-prevalence disorders, research has been mostly been restricted to small-scale studies of treatment samples. The reported prevalence estimates obtained from these studies vary widely.


To provide prevalence estimates based on larger samples and to examine sources of variability in prevalence estimates across studies.


Data from 53 studies of treatment samples and 5 epidemiological studies were analysed.


Based on treatment sample data, prevalence estimates were calculated for current use (23.0%), current misuse (11.3%), 12-month use (29.2%), 12-month misuse (18.8%), lifetime use (42.1%) and lifetime misuse (22.5%). Epidemiological studies consistently reported higher cannabis use and misuse prevalence in people with psychosis.

The factor most consistently associated with increased odds of cannabis prevalence was specificity of diagnosis. Factors such as consumption patterns and study design merit further consideration.

Keyword Psychiatry
Substance Use Disorders
Risk Factor
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes This document is a journal review.

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Excellence in Research Australia (ERA) - Collection
2006 Higher Education Research Data Collection
School of Medicine Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 92 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 119 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 05:47:19 EST