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Is Cannabis Use Related to Road Crashes? A Study of Long Distance Commercial Drivers in Nigeria


VO Lasebikan

Abstract

Factors associated with driving under the influence of cannabis (DUIC) and related road crashes among 422 commercial drivers were studied. A multivariate analysis was conducted to understand the associations between risk factors and DUIC and car crashes respectively. Young age, OR = 3.6, 95% CI 1.9-7.6; cannabis abuse, OR = 4.1, 95% CI, 1.9-8.2; cannabis dependence, OR = 4.4, 95% CI, 2.1- 7.8; hire- driver, OR = 5.3, 95% CI, 2.0- 14.2, remained associated with DUIC after model adjustments while previous DUIC accidents, OR = 4.5, 95% CI, 2.2 -11.0; combined DUIC and driving under influence of alcohol (DUIA), OR = 5.1, 95% CI, 2.7 – 14.0, remained associated with cannabis related crashes after model adjustment. DUIC increases the risk of involvement in a crash most particularly if there is associated DUIA.

Key Words: Cannabis, driving under influence, Nigeria, road crashes, commercial drivers

Journal Identifiers


eISSN: 1531-4065
print ISSN: 1531-4065