PRIMARY STUDY

Cannabis as a risk factor for psychosis: systematic review

Key Findings:  Findings support a correlation between early cannabis use and an increased risk of psychosis, observing a dose-related effect where the risk escalates with higher usage. Particularly vulnerable groups include adolescents, individuals with prior psychotic symptoms, and those with a high genetic risk for schizophrenia.

Type of Study:  Clinical Meta-analysis

Study Result:  Negative

Research Location(s):  United Kingdom

Year of Pub:  2005


Cannabinoids Studied:  Cannabinoid (unspecified)

Phytocannabinoid Source:  Not Applicable

Chemotype:  , Chemotype I




Citation:  Semple DM, et al. Cannabis as a risk factor for psychosis: systematic review. J Psychopharmacol. 2005; 19:187-94. doi: 10.1177/0269881105049040

Authors:  Semple DM, McIntosh AM, Lawrie SM