Skip to main content
Fig. 1 | Substance Abuse Treatment, Prevention, and Policy

Fig. 1

From: Positive drug test trends in fatally-injured drivers in the United States from 2007 to 2017

Fig. 1

Trend in yearly prevalence in positive drug test among drivers who died within 1 h of crashing, by sex. Cochran–Armitage tests were used to assess the statistical significance of changes in the percentage of drug involvement in fatally-injured drivers over time (Male:Z = 23.7,p < 0.001;Female: Z = 11.4,p < 0.001)

Back to article page