Key Findings:  Significant associations between cannabis use (CU) frequency and disorder (CUD) and psychotic and depressive symptoms in late adolescence and young adulthood extend across adulthood, and include anxiety.
Type of Study:  Meta-analysis
Study Result:  Negative
Research Location(s):  Canada, United States
Year of Pub:  2019
Cannabinoids Studied:  Cannabinoid (unspecified)
Phytocannabinoid Source:  Not Applicable
Citation:  Leadbeater BJ, et al. Age-varying effects of cannabis use frequency and disorder on symptoms of psychosis, depression and anxiety in adolescents and adults. Addiction. 2019; 114:278-293. doi: 10.1111/add.14459
Authors:  Leadbeater BJ, Ames ME, Linden-Carmichael AN