NORML New Zealand
National Organisation for the Reform of Marijuana Laws

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Car Accidents & Drugs

From Accident Analysis and Prevention, Volume 29, Number 6, November 1997.

Researchers studied blood samples from 894 patients admitted to two emergency rooms with injuries from automobile crashes. The presence of alcohol in blood was associated with more severe injury than in the case of patients who were alcohol and drug free. Patients who had other drugs in their blood (including marijuana AND opiates and cocaine) without alcohol showed injuries no worse on average than patients who had no alcohol and no drugs.

..."When other relevant variables were considered, these (everything besides alcohol) drugs were not associated with more severe crashes or greater injury."

The title of the article is Crash Characteristics and Injuries of Victims Impaired by Alcohol vs. Illicit Drugs. The study was sponsored by the National Institute on Alcohol Abuse and Alcoholism. The main author is Pat Waller of UMTRI, the University of Michigan Transportation Research Institute.


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