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Updated: Jun 10, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Cannabis involvement in individuals with bipolar disorder
Arpana Agrawal1, John I Nurnberger, Michael T Lynskey
1Dept. of Psychiatry, Washington University School of Medicine, Saint Louis, MO 63110, USA. arpana@wustl.edu
Abstract:
In a study of 471 bipolar disorder (BD) cases and 1761 controls, individuals with BD were 6.8 times more likely to report a lifetime history of cannabis use. Rates of DSM-IV cannabis use disorders in those with BD were 29.4% and were independently and significantly associated with increased suicide attempts, greater likelihood of mixed episodes and greater disability attributable to BD.
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