TY - JOUR PY - 1995// TI - Fatal traffic accident patterns and driver impairment in British Columbia JO - Proceedings International Council on Alcohol, Drugs and Traffic Safety Conference A1 - Mercer, G.w. A1 - Jeffrey, W.k. SP - 76 EP - 80 VL - 1995 IS - N2 - Blood samples, driver records and accident records of 41 female and 186 male fatally injured drivers were examined. Toxicologies showed: 37 percent alcohol-only; 11 percent alcohol-and-drugs; and 9 percent drugs-only. The most frequently found drugs were: 48 percent alcohol; 13 percent tetrahydrocannabinol or its metabolites (THC/THCCOOH); 4 percent cocaine; and 5 percent diazepam. To investigate the relationship between accident patterns and alcohol and drug use, a factor analysis of accident and driver records produced a 7-factor varimax solution accounting for 63 percent of the matrix variance. The "Male Single Vehicle" factor related positively to alcohol, the "Young Recidivists" factor related to both alcohol and THC/THCCOOH, and the "Weather" factor related to CNS depressants. Accidents should be examined using multivariate techniques to develop more effective accident classification systems. Keywords: Cannabis impaired driving; DUID; Ethanol impaired driving
LA - en SN - UR - http://dx.doi.org/ ID - ref1 ER -