Logistic regression examining the combined effects of DB, driver fatigue and RT (split into quartiles) on the combined RTA score
| OR | CI | Significance | Omnibus test of model coefficients (χ2) | |
|---|---|---|---|---|
| 20.94, p<0.001 | ||||
| No risk factors | 1 | |||
| One risk factor | 1.19 | 0.80 to 1.77 | p>0.05 | |
| Two risk factors | 1.57 | 1.06 to 2.34 | p<0.05 | |
| All three risk factors | 2.55 | 1.70 to 3.82 | p<0.001 |
DB, driving behaviour; RT, risk taking.