Advocating for Evidence Based Marijuana Policy
Tag Archives: Test positive
Marijuana use may double the risk of accidents for drivers, study finds
Source: (As reported in ScienceDaily, October 7, 2011) Columbia University’s Mailman School of Public Health. (2011, October 7). Marijuana use may double the risk of accidents for drivers, study finds. ScienceDaily. Retrieved May 20, 2014 from www.sciencedaily.com/releases/2011/10/111006173453.htm
Researchers have found that drivers who test positive for marijuana or report driving within three hours of marijuana use are more than twice as likely as other drivers to be involved in motor vehicle crashes. The researchers also found evidence that crash risk increases with the concentration of marijuana-produced compounds in the urine and the frequency of self-reported marijuana use.
M.-C. Li, J. E. Brady, C. J. DiMaggio, A. R. Lusardi, K. Y. Tzong, G. Li. Marijuana Use and Motor Vehicle Crashes. Epidemiologic Reviews, 2011; DOI: 10.1093/epirev/mxr017