Trends in U.S. Medical Cannabis Registrations, Authorizing Clinicians, and Reasons for Use From 2020 to 2022 | Annals of Internal Medicine
Background: As medical cannabis availability increases, up-to-date trends in medical cannabis licensure can inform clinical policy and care. Objective: To describe current trends in medical cannabis licensure in the United States. Design: Ecological study with repeated measures. Setting: Publicly available state registry data from 2020 to 2022. Participants: People with medical cannabis licenses and clinicians authorizing cannabis licenses in the United States. Measurements: Total patient volume and prevalence per 10 000 persons in the total population, symptoms or conditions qualifying patients for licensure (that is, patient-reported qualifying conditions), and number of authorizing clinicians. Results: In 2022, of 39 jurisdictions allowing medical cannabis use, 34 reported patient numbers, 19 reported patient-reported qualifying conditions, and 29 reported authorizing clinician numbers. Enrolled patients increased 33.3% from 2020 (3 099 096) to 2022 (4 132 098), with a corresponding