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Table 2 Cannabis motor vehicle crash healthcare utilization – six months before and six months after authorization for medical cannabis

From: Cohort study of medical cannabis authorization and motor vehicle crash-related healthcare visits in 2014–2017 in Ontario, Canada

Outcome Cannabis Population
Difference in mean number of visits/admissions per 10,000 patients from 6 months before to 6 months after medical cannabis
Matched Controls
Difference in mean number of visits/admissions per 10,000 patients from 6 months prior to 6 months after index date
  Before After Change Before After Change
Hospitalization or Emergency Department visit as a result of motor vehicle crashes 46 48 + 2 32 34 + 2
Hospitalization visit as a result of motor vehicle crashes 6.05 2.02 −4.03 2.82 0.56 −2.26
Emergency Department visit as a result of motor vehicle crashes 40 46 + 6 29 33 + 4