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Table 2 Adjusted Odds Ratios (ORs) and 95% Confidence Intervals (CIs) of Fatal Crash Involvement according to Driver Characteristics in the Continental United States, Selected Time Periods on Fridays and Saturdays, July 20 through December 1, 2006, 2007, 2008, and June 7, 2012 through March 30, 2013 and June 7, 2013 through March 30, 2014

From: Prescription opioids, alcohol and fatal motor vehicle crashes: a population-based case-control study

Driver characteristic Adjusted OR 95% CI
Age, years
 16–24 0.85 0.74, 0.96
 25–39 0.68 0.60, 0.78
 40–64 1.00 reference
 ≥ 65 2.81 2.37, 3.33
Sex
 Female 1.00 reference
 Male 2.06 1.84, 2.31
Region
 West 1.00 reference
 Midwest 0.81 0.70, 0.94
 Southern 1.06 0.93, 1.21
 Northeast 0.70 0.59, 0.83
Blood alcohol concentration (BAC, g/dl)
<0.01 1.00 reference
 0.01–0.07 2.59 2.20, 3.06
 ≥ 0.08 80.09 68.21, 94.04
Prescription opioids
 Negative 1.00 reference
 Positive 1.71 1.37, 2.14