US Laws on Cannabis Linked to Increase in Use Disorders, Study Finds

A study published in JAMA Psychiatry found that states with medical and recreational cannabis laws experienced significant increases in Cannabis Use Disorder (CUD) and intoxication cases. The analyzed period, from 2011 to 2021, covers data from over 110 million adults with employer-sponsored health insurance.

Significant Growth in CUD and Intoxication Cases

According to the researchers, states that legalized medical cannabis saw increases of 42.7% in cannabis use disorder cases and 88.6% in cannabis intoxication cases, compared to states without similar laws. States that legalized recreational use experienced a 31.6% increase in intoxications.

Most Affected Groups

The data shows that women and individuals aged 35 to 44 were most affected by cannabis use disorders in states with laws allowing medical cannabis treatment. However, the opening of dispensaries and permission for home cultivation did not show a direct correlation with the observed increases.

The study authors warn that communities with greater access to cannabis face higher healthcare costs due to the increase in substance-related diagnoses. “New clinical interventions and policies are needed to contain these growing diagnoses,” the researchers stated.

Importance of Consistent Data

The research, based on the Merative MarketScan database, is considered a robust analysis, covering a decade of national and state data. It underscores the importance of monitoring the effects of cannabis-related public policies.

The study sheds light on the unintended consequences of cannabis legalization, especially in the increase of disorders and intoxications. The research highlights the need for policy and educational actions to mitigate potential negative impacts on public health.

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Source: labroots