Cannabis and stimulant disorders and readmission 2 years after first-episode psychosis

Sara, Grant E., Burgess, Philip M., Malhi, Gin S., Whiteford, Harvey A. and Hall, Wayne C. (2014) Cannabis and stimulant disorders and readmission 2 years after first-episode psychosis. British Journal of Psychiatry, 204 6: 448-453. doi:10.1192/bjp.bp.113.135145

Author Sara, Grant E.
Burgess, Philip M.
Malhi, Gin S.
Whiteford, Harvey A.
Hall, Wayne C.
Title Cannabis and stimulant disorders and readmission 2 years after first-episode psychosis
Journal name British Journal of Psychiatry   Check publisher's open access policy
ISSN 1472-1465
Publication date 2014-06-02
Year available 2014
Sub-type Article (original research)
DOI 10.1192/bjp.bp.113.135145
Open Access Status Not yet assessed
Volume 204
Issue 6
Start page 448
End page 453
Total pages 6
Place of publication London, United Kingdom
Publisher Royal College of Psychiatrists
Language eng
Subject 2738 Psychiatry and Mental health
Abstract Background
Formatted abstract

Few studies have examined the impact of stimulant use on outcome in early psychosis. Ceasing substance use may lead to positive outcomes in psychosis.


To examine whether baseline cannabis or stimulant disorders and ongoing drug use predict readmission within 2 years of a first psychosis admission.


Predictors of readmission were examined with Cox regression in 7269 people aged 15-29 years with a first psychosis admission.


Baseline cannabis and stimulant disorders did not predict readmission. A stimulant disorder diagnosis prior to index psychosis admission predicted readmission, but a prior cannabis disorder diagnosis did not. Ongoing problem drug use predicted readmission. The lowest rate of readmission occurred in people whose baseline drug problems were discontinued.


Prior admissions with stimulant disorder may be a negative prognostic sign in first-episode psychosis. Drug use diagnoses at baseline may be a good prognostic sign if they are identified and controlled.
Keyword Psychiatry
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: UQ Centre for Clinical Research Publications
Official 2015 Collection
School of Public Health Publications
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Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
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