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Washington State Institute for Public Policy

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Publications

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Technical Report—Licensed Cannabis Retail Access and Substance Use Disorder Diagnoses (Archived)

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Amani Rashid, Nathan Adams - September 2023

In November 2012, Washington State voters passed Initiative 502 (I-502), which legalized limited possession, private use, and commercial sales of cannabis for adults. In this report, we examined if greater access to licensed non-medical cannabis (NMC) retailers relates to disordered substance use diagnoses among Medicaid beneficiaries in Washington State. We found that a lower average travel time to an NMC retailer predicts a small increase in the probability that a claim includes a diagnosis of cannabis use disorder (CUD), alcohol use disorder (AUD), or opioid use disorder (OUD) among Medicaid beneficiaries ages 21 and older and beneficiaries ages 12-17. We also found that in neighborhoods with multiple retailers located in proximity (within 5 or 10 minutes), an increase in the number of retailers predicts a higher likelihood of CUD.

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