US medical cannabis registries rarely track safety outcomes or patient demographics
Only 8% of US medical cannabis registries reported patient race/ethnicity, 11% tracked adverse events, and 6% reported therapeutic benefits, revealing major gaps in public health surveillance of medical cannabis.
Quick Facts
What This Study Found
Among 36 states with medical cannabis programs, 97% reported patient numbers and 75% reported authorizing clinicians. Least reported: patient race/ethnicity (8%), adverse events (11%), therapeutic benefits (6%), and product recalls (6%). Newer programs (2013-2018) reported more subcategories (median 11 vs. 8).
Key Numbers
36 states analyzed. Patient numbers: 97%. Clinician numbers: 75%. Race/ethnicity: 8%. Adverse events: 11%. Therapeutic benefits: 6%. Product recalls: 6%. Newer programs: median 11 subcategories vs. 8 for early adopters.
How They Did This
Analysis of 2021 medical cannabis registry reports from 34 states, Puerto Rico, and DC. Data manually coded into domains including patient demographics, clinician data, sales, and health/safety outcomes.
Why This Research Matters
Without tracking adverse events, therapeutic benefits, or patient demographics, states cannot assess whether medical cannabis is safe, effective, or equitably accessible. This is a fundamental gap in public health surveillance.
The Bigger Picture
Medical cannabis is unique among therapeutic interventions in how little post-market surveillance occurs. Prescription drugs have FDA adverse event reporting, but medical cannabis programs largely operate without comparable safety monitoring.
What This Study Doesn't Tell Us
Relies on publicly available reports which may not reflect all data collected. States may collect but not publish some data. One-year snapshot (2021). Cannot assess data quality within reported categories.
Questions This Raises
- ?Should federal standards mandate minimum data reporting for medical cannabis registries?
- ?Could standardized reporting across states enable population-level safety analysis?
Trust & Context
- Key Stat:
- Only 8% tracked patient race/ethnicity
- Evidence Grade:
- Comprehensive analysis of publicly available registry data with systematic coding, but limited by what states choose to report.
- Study Age:
- 2024 analysis of 2021 state medical cannabis registry reports
- Original Title:
- Data Quality in State Registry Reports of Medical Cannabis Patients in the United States.
- Published In:
- American journal of public health, 114(S8), S685-S693 (2024)
- Authors:
- Boehnke, Kevin F(22), Sinclair, Rachel(3), Gordon, Felicia(3), Roehler, Douglas R, Smith, Tristin, Hoots, Brooke
- Database ID:
- RTHC-05144
Evidence Hierarchy
Frequently Asked Questions
Do states track whether medical cannabis is helping patients?
Rarely. Only 6% of state registries reported data on therapeutic benefits, and only 11% tracked adverse events. Most reporting focused on patient numbers and sales data.
Do newer medical cannabis programs report better data?
Yes. States that legalized medical cannabis between 2013-2018 reported a median of 11 data subcategories compared to 8 for early-adopting states (1996-2012).
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Cite This Study
https://rethinkthc.com/research/RTHC-05144APA
Boehnke, Kevin F; Sinclair, Rachel; Gordon, Felicia; Roehler, Douglas R; Smith, Tristin; Hoots, Brooke. (2024). Data Quality in State Registry Reports of Medical Cannabis Patients in the United States.. American journal of public health, 114(S8), S685-S693. https://doi.org/10.2105/AJPH.2024.307728
MLA
Boehnke, Kevin F, et al. "Data Quality in State Registry Reports of Medical Cannabis Patients in the United States.." American journal of public health, 2024. https://doi.org/10.2105/AJPH.2024.307728
RethinkTHC
RethinkTHC Research Database. "Data Quality in State Registry Reports of Medical Cannabis P..." RTHC-05144. Retrieved from https://rethinkthc.com/research/boehnke-2024-data-quality-in-state
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.