Lead: Association of State Cannabis Legalization With Cannabis Use Disorder and Cannabis Poisoning

Association of State Cannabis Legalization With Cannabis Use Disorder and Cannabis Poisoning

JAMA Psychiatry

This longitudinal cohort study examined the association of state-level medical and recreational cannabis laws with cannabis use disorder (CUD) and cannabis poisonings in the adult population with employer-sponsored health insurance. The study showed that from 2011 to 2021, states with legalized medical cannabis experienced 42.7% and 88.6% increases in CUD and cannabis poisoning, respectively, compared to states without legalized medical cannabis. States with legalized recreational cannabis experienced a 31.6% increase in cannabis poisoning compared to states without legalized recreational cannabis. Thus, state medical cannabis legalization was associated with increased CUD and cannabis poisonings, and state recreational cannabis legalization was associated with increased cannabis poisoning in the adult population with employer-sponsored health insurance.

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