Model 1 (n = 4596) | Model 2 (n = 4433) | Model 3 (n = 4415) | |
---|---|---|---|
OR (95% CI) | OR (95% CI) | OR (95% CI) | |
Positive oral fluid test result | 28.46 (13.86, 58.46) | 12.10 (5.15, 28.41) | 11.36 (7.32, 17.65) |
Log(oral fluid THC) (log-ng/ml) | 1.82 (1.48, 2.24) | 1.93 (1.51, 2.47) | 1.91 (1.68, 2.17) |
Blood alcohol concentration (ng/dl) | |||
0 | Ref | Ref | |
1–39 | 0.88 (0.20,3.82) | 0.85 (0.39, 1.82) | |
40+ | 0.19 (0.05, 0.72) | 0.19 (0.10, 0.38) | |
Last time used marijuana | |||
Over a year/Never | Ref | Ref | |
Over a Month | 3.87 (2.26, 6.61) | 3.91 (2.95, 5.16) | |
Past 2 days to a month | 8.78 (5.40, 14.26) | 8.78 (6.81, 11.33) | |
Past 24 Hours | 25.16 (14.26, 44.41) | 26.44 (19.64, 34.59) | |
Age (years) | |||
16–20 | Ref | ||
21–34 | 1.27 (0.96, 1.68) | ||
35–54 | 1.16 (0.84, 1.59) | ||
≥ 55 | 0.96 (0.63, 1.45) | ||
Gender (Male vs. Female) | 0.99 (0.81, 1.20) | ||
Race | |||
Black | Ref | ||
White | 0.57 (0.46, 0.71) | ||
Other Race | 0.69 (0.52, 0.91) | ||
AUC (95% CI) | 0.87 (0.82, 0.91) | 0.94 (0.91, 0.97) | 0.95 (0.92, 0.98) |