Motor Vehicle Collision Risk and Driving Under the Influence of Cannabis: Evidence from Adolescents in Atlantic Canada

The present study examines the relationship between driving under the influence of cannabis (DUIC) and motor vehicle collision (MVC) risk. Researchers studied a sample of 6087 senior students in Atlantic Canada. A series of models were analyzed adjusting for demographic characteristics, driver experience, and substance use. Participants were drawn from the 2002/2003 “Student Drug Use Survey in the Atlantic Provinces,” an anonymous cross-sectional survey of adolescent students in the Atlantic provinces of Canada. Logistic regression techniques were used in the analysis of unadjusted and adjusted models. It was found that among senior students, the prevalence of DUIC in the past year was 15.1% while the prevalence of MVCs was 8.1%. Predictive factors of DUIC were gender, driver experience, use of a fake ID, and driving under the influence of alcohol (DUIA). Predictive factors of MVC were gender, driver experience, DUIC, and DUIA. Thus, among this population in Atlantic Canada, DUIC has become a more prevalent activity than driving while under the influence of alcohol, and it has become a major factor in motor vehicle collision risk. The authors conclude by stating that these findings extend our knowledge of DUIC as a social, legal, and public health issue, which have implications on road safety. New drivers must be educated about cannabis use in the context of driving.


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  • Accession Number: 01013441
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Dec 5 2005 9:11PM