ArticlePreventive medicine reports2022
Cannabis legalization and driving under the influence of cannabis in a national U.S. Sample.
Article in Preventive medicine reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Impact of partial cannabis legalisation in Luxembourg: An interdisciplinary perspective.Drug and alcohol dependence reports · 2026Article
- Cannabis use frequency and driving safety: Associations between cannabis use frequency and driving perceptions and behaviors.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2026Article
- Medical Cannabis Legalization and its Association with Cannabis use, Cannabis use Disorder, and Intoxicated Driving: Findings from the National Survey on Drug use and Health, 2016-2019.Community mental health journal · 2026Article
- Driving and cannabis use: a questionnaire about knowledge and behaviors after the legalization of recreational cannabis in California.BMC public health · 2025Article
- Cannabis use characteristics and associations with problematic use outcomes, quitting-related factors, and mental health among US young adults.Substance abuse treatment, prevention, and policy · 2025Article
- Driving-related behaviors, attitudes, and perceptions among Australian medical cannabis users: results from the CAMS 20 survey.Journal of cannabis research · 2023Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The relationship between cannabis legalization and traffic safety remains unclear. Physiological measures of cannabis impairment remain imperfect. This analysis used self-report data to examine the relationship between cannabis legalization and driving under the influence of cannabis (DUIC). Using a cross-sectional national sample (2016-2017) of 1,249 past-30-day cannabis users, we regressed self-reported DUIC (driving within three hours of "getting high") on cannabis legalization (recreational and medical (recreational), medical only (medical), or no legal cannabis), adjusting for demographics, days of use (past 30 days), days of use*legal status, calibration weights, and geographic clustering. The risk of DUIC in recreational (risk ratio [RR] = 0.41, 95% confidence interval (CI):0.23-0.72) and medical (RR = 0.39, 95% CI:0.20-0.79) states was lower than in states without legal cannabis, with one exception. Among frequent cannabis users (≥20 days per month), there was a significantly lower risk of DUIC for those living in recreational states (RR = 0.70, 95% CI: 0.49-0.99), but not for those living in medical states (RR = 0.87, 95% CI: 0.60-1.24), compared to users living in states without legal cannabis. The risk of self-reported DUIC was lower in recreational and medical cannabis states compared to states without legal cannabis. The only exception was for frequent users in medical states, for whom there was no difference in risk compared to frequent users living in states without legal cannabis.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.