This article originally appeared at https://ajph.aphapublications.org/doi/abs/10.2105/AJPH.2016.303577
Authors: Julian Santaella-Tenorio, DVM, MSc, Christine M. Mauro, PhD, Melanie M. Wall, PhD, June H. Kim, MPhil, MHS, Magdalena Cerdá, DrPH, Katherine M. Keyes, PhD, Deborah S. Hasin, PhD, Sandro Galea, MD, DrPH, and Silvia S. Martins, MD, PhD
Objectives. To determine the association of medical marijuana laws (MMLs) with trafﬁc fatality rates.
Methods. Using data from the 1985–2014 Fatality Analysis Reporting System, we examined the association between MMLs and trafﬁc fatalities in multilevel regression models while controlling for contemporaneous secular trends. We examined this association separately for each state enacting MMLs. We also evaluated the association between marijuana dispensaries and trafﬁc fatalities.
Results. On average, MML states had lower trafﬁc fatality rates than non-MML states. Medical marijuana laws were associated with immediate reductions in trafﬁc fatalities in those aged 15 to 24 and 25 to 44 years, and with additional yearly gradual reductions in those aged 25 to 44 years. However, state-speciﬁc results showed that only 7 states experienced post-MML reductions. Dispensaries were also associated with trafﬁc fatality reductions in those aged 25 to 44 years.
Conclusions. Both MMLs and dispensaries were associated with reductions in trafﬁc fatalities, especially among those aged 25 to 44 years. State-speciﬁc analysis showed heterogeneity of the MML–trafﬁc fatalities association, suggesting moderation by other local factors. These ﬁndings could inﬂuence policy decisions on the enactment or repealing of MMLs and how they are implemented. (Am J Public Health. Published online ahead of print December 20, 2016: e1–e7. doi:10.2105/AJPH.2016.303577)
Julian Santaella-Tenorio et al.
“US Traffic Fatalities, 1985–2014, and Their Relationship to Medical Marijuana Laws”, American Journal of Public Health
107, no. 2 (February 1, 2017): pp. 336-342.