Teen cannabis surveys may be missing rise in diagnosed disorder, study of 637,000 adolescents finds

New diagnoses of cannabis use disorder (CUD) among adolescents in Northern California began climbing after recreational cannabis was legalized in California in 2016, reversing a steady decline in the three years prior, according to a new study published in the journal Addiction. The researchers say their findings call for disorder-level outcomes to be tracked alongside standard measures of use prevalence and frequency when evaluating the public health effects of cannabis legalization.

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