Middle school substance offenses rose 30% after Oregon marijuana legalization, especially near dispensaries
After Oregon legalized recreational marijuana, middle school substance-related discipline referrals increased by 30% compared to schools in non-legal states, with proximity to a marijuana outlet amplifying the effect.
Quick Facts
What This Study Found
Substance use-related office discipline referrals in Oregon middle schools increased by 0.14 per 100 students (30% of the mean) after legalization, relative to comparison schools in other states. The increase was moderated by having a marijuana outlet within one mile of the school. No statistically significant changes were found in high schools.
Key Numbers
Middle school ODRs increased by 0.14 per 100 students (30% of mean). Effect moderated by dispensary within 1 mile. No significant change in high school ODRs.
How They Did This
Quasi-experimental design comparing substance use discipline referral rates in Oregon middle and high schools before and after recreational marijuana legalization, using schools in non-legal states as comparison. Geographic analysis assessed the moderating effect of dispensary proximity.
Why This Research Matters
While many studies have found no overall increase in teen cannabis use after legalization, this study uses a behavioral measure (school discipline referrals) rather than self-report surveys, potentially capturing a different dimension of the impact on youth.
The Bigger Picture
The finding that middle schools (not high schools) showed the effect is noteworthy. Younger adolescents may be more influenced by normalization of cannabis use in their environment, particularly when retail outlets are nearby.
What This Study Doesn't Tell Us
Discipline referrals reflect administrative decisions, not just student behavior. Cannot distinguish cannabis-specific offenses from other substances. Comparison schools in other states may differ in unmeasured ways. Oregon-specific findings may not generalize.
Questions This Raises
- ?Why were middle schools affected but not high schools?
- ?Would buffer zones around schools reduce the dispensary proximity effect?
- ?Do discipline referrals correspond to actual increases in cannabis use among middle schoolers?
Trust & Context
- Key Stat:
- 30% increase in middle school substance offenses post-legalization
- Evidence Grade:
- Quasi-experimental design with comparison schools and geographic analysis. Uses administrative data rather than self-report, which is both a strength (objective) and limitation (reflects policy, not just behavior).
- Study Age:
- Published in 2024 in Health Economics.
- Original Title:
- Legalization and retail availability of recreational marijuana and adolescent use in schools.
- Published In:
- Health economics, 33(1), 107-120 (2024)
- Authors:
- Cil, Gulcan, Winters, Ken C(2), Austin, Sean C, Kittelman, Angus, Smolkowski, Keith, Westling, Erika, Seeley, John R
- Database ID:
- RTHC-05213
Evidence Hierarchy
Frequently Asked Questions
Did legalization increase teen cannabis use in schools?
Middle school substance-related discipline referrals increased 30% after Oregon legalized marijuana, particularly near dispensaries. However, high school referrals did not change significantly.
Does having a dispensary near a school matter?
Yes. The increase in middle school substance offenses was amplified by having a marijuana retail outlet within one mile of the school, suggesting proximity to retail cannabis access may increase youth exposure.
Read More on RethinkTHC
Cite This Study
https://rethinkthc.com/research/RTHC-05213APA
Cil, Gulcan; Winters, Ken C; Austin, Sean C; Kittelman, Angus; Smolkowski, Keith; Westling, Erika; Seeley, John R. (2024). Legalization and retail availability of recreational marijuana and adolescent use in schools.. Health economics, 33(1), 107-120. https://doi.org/10.1002/hec.4763
MLA
Cil, Gulcan, et al. "Legalization and retail availability of recreational marijuana and adolescent use in schools.." Health economics, 2024. https://doi.org/10.1002/hec.4763
RethinkTHC
RethinkTHC Research Database. "Legalization and retail availability of recreational marijua..." RTHC-05213. Retrieved from https://rethinkthc.com/research/cil-2024-legalization-and-retail-availability
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.