Table 3 Logistic Regression Predicting Perceived Safety Based on Gender, Licence Class, Sleep Hours, BAC Estimate and Alcoholic Units Consumed in the Past 24 Hours
Odds Ratio | Lower 95% Confidence Interval | Upper 95% Confidence Interval | P-value | Wald | dF | |
|---|---|---|---|---|---|---|
Gendera | 0.92 | 0.50 | 1.70 | 0.79 | 0.07 | 1 |
Licence Classb | 2.05 | 1.20 | 3.51 | 0.01 | 6.91 | 1 |
0–4 Hours of Sleep | 1 | – | – | – | – | – |
5–7 Hours of Sleep | 1.81 | 1.00 | 3.28 | 0.05 | 3.82 | 1 |
8–13 Hours of Sleep | 3.05 | 1.25 | 7.45 | 0.02 | 5.96 | 1 |
Estimated BAC 0–0.049 | 5.05 | 2.72 | 9.39 | < 0.001 | 26.22 | 1 |
Less than 6 Standard Drinks in 24 Hours | 1 | – | – | – | – | – |
6–10 Standard Drinks in 24 Hours | 0.54 | 0.18 | 1.57 | 0.26 | 1.28 | 1 |
11–15 Standard Drinks in 24 Hours | 0.31 | 0.11 | 0.91 | 0.03 | 4.56 | 1 |
16 or more Standard Drinks in 24 Hours | 0.23 | 0.07 | 0.72 | 0.01 | 6.38 | 1 |