Skip to main content

Table 3 Estimated odds ratios (ORs) and 95% confidence intervals (CIs) of fatal 2-vehicle crash initiation by driver marijuana and alcohol positivity status, Fatality Analysis Reporting System, 2011–2016

From: Direct and indirect effects of marijuana use on the risk of fatal 2-vehicle crash initiation

Marijuana

Alcohol

Crude

Adjusteda

OR

95% CI

OR

95% CI

Negative

Negative

1.00

reference

1.00

reference

Positive

Negative

1.81

1.58, 2.09

1.53

1.31,1.77

Negative

Positive

4.70

4.11, 5.39

4.95

4.28, 5.72

Positive

Positive

7.46

5.72, 9.72

6.76

5.12, 8.94

  1. Abbreviations: OR Odds ratio, CI Confidence interval
  2. aAdjusted for age, sex, and previous driving history within the past 3 years (i.e., crash, license suspension, driving while impaired conviction, and speeding conviction)