Author Interviews, Cannabis / 27.02.2025
Evidence-Based Medicine Up in Smoke? An Analysis of the Qualifying Conditions for Medical Marijuana
MedicalResearch.com Interview with:
Elena Stains
Medical Student
Department of Medical Education
Geisinger Commonwealth School of Medicine
Scranton, PA
MedicalResearch.com: What is the background for this study?
Response: In 2019 to 2020, 2.5% of Americans reported using cannabis for medical needs, compared to 1.2% in 2013-2014, representing a 12.9% annual increase1. Forty states and the District of Columbia have legislation for some form of medical cannabis (MC) in 2024. Because MC is not federally legalized, each state creates its own legislation on the conditions that qualify a person for MC, without any standardized process to determine what qualifying conditions (QC) are proven to be aided by MC. Thus, the QCs chosen by states vary widely. Common QCs include cancer, dementia, and PTSD.
The National Academies of Sciences, Engineering, and Medicine (NAS) published a report in 2017 on the evidence for the therapeutic effects of cannabis and cannabinoids for over twenty conditions2. This report reviews the evidence of effectiveness of medical cannabis for the most common QCs chosen by states. The researchers at Geisinger Commonwealth School of Medicine aimed to compare the evidence found by the NAS report with the QCs of 38 states (including the District of Columbia) in both 2017 and 2024. QCs were categorized based on NAS-established level of evidence: limited, moderate, or substantial/conclusive evidence of effectiveness, limited evidence of ineffectiveness, or no/insufficient evidence to support or refute effectiveness (Table 1).
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