RT Journal Article SR Electronic T1 Alcohol in fatal crashes involving Mexican and Canadian drivers in the USA JF Injury Prevention JO Inj Prev FD BMJ Publishing Group Ltd SP 304 OP 308 DO 10.1136/ip.2010.029744 VO 17 IS 5 A1 Susan P Baker A1 Joanne E Brady A1 George W Rebok A1 Guohua Li YR 2011 UL http://injuryprevention.bmj.com/content/17/5/304.abstract AB Objective To determine the prevalence of alcohol involvement and impairment in fatal crashes in the USA involving Mexican and Canadian drivers.Methods Drivers in fatal crashes in the USA were identified during 1998 to 2008 from the Fatality Analysis Reporting System, and the prevalence of alcohol involvement and impairment (defined as blood alcohol concentrations ≥0.01 g/dl and ≥0.08 g/dl, respectively) was compared among drivers licensed in Mexico (n=687), Canada (n=598), and the USA (n=561 908).Results The prevalence of alcohol involvement was 27% for US drivers, 27% for Mexican drivers, and 11% for Canadian drivers. Alcohol impairment was found in 23% of US drivers, 23% of Mexican drivers, and 8% of Canadian drivers. With adjustment for driver demographic characteristics and survival status and for crash circumstances, the prevalence of alcohol involvement was significantly lower for Canadian drivers (adjusted prevalence ratio (PR) 0.63, 95% CI 0.49 to 0.80) than for US drivers, and was similar between Mexican and US drivers (adjusted PR 0.91, 95% CI 0.81 to 1.02).Conclusions Alcohol involvement in fatal motor vehicle crashes in the USA is similarly prevalent in US and Mexican drivers, but is substantially less common in Canadian drivers.