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Br J Psychiatry. 2008 Jun;192(6):470-1. doi: 10.1192/bjp.bp.107.045740.

Association of cannabis use with prodromal symptoms of psychosis in adolescence.

Author information

1
Department of Psychiatry, University of Oulu, PO Box 5000, 90014 University of Oulu, Finland. jouko.miettunen@oulu.fi

Abstract

Recent interest has focused on the association between cannabis use and risk of psychosis. In the largest unselected, population-based study on this topic to date, we examined cannabis use and prodromal symptoms of psychosis at age 15-16 years among 6330 adolescents. Those who had tried cannabis (n=352; 5.6% of the total sample) were more likely to present three or more prodromal symptoms even after controlling for confounders including previous behavioural symptoms (OR=2.23; 95% CI 1.70-2.94). A dose-response effect was seen. We conclude that cannabis use is associated with prodromal symptoms of psychosis in adolescence.

PMID:
18515902
DOI:
10.1192/bjp.bp.107.045740
[Indexed for MEDLINE]

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