| Variables | Serious Crashes | Minor Crashes | |||||
|---|---|---|---|---|---|---|---|
| Coefficient | Odds Ratio | P-value | Coefficient | Odds Ratio | P-value | ||
| Intercept | -4.3555 | <.0001 | -1.5981 | <.0001 | |||
| Type of barrier (Reference: others) | Concrete | 0.0574 | 1.059 | 0.8610 | 0.4269 | 1.533 | 0.0007 |
| Cable | -1.4343 | 0.238 | <.0001 | -1.0637 | 0.345 | <.0001 | |
| Road condition (Reference: dry) | Wet | 0.0985 | 1.103 | 0.7797 | 0.0595 | 1.061 | 0.7117 |
| Snow | -1.4675 | 0.230 | 0.0188 | -0.7104 | 0.491 | 0.0002 | |
| Slush | -1.5894 | 0.204 | 0.1239 | -0.6452 | 0.525 | 0.0152 | |
| Ice | -1.1137 | 0.328 | 0.0006 | -0.5042 | 0.604 | <.0001 | |
| Driver characteristics | Age: <35 (Reference:>=35) | 0.8716 | 2.391 | 0.0002 | 0.0949 | 1.100 | 0.3041 |
| Gender: Male (Reference:female) | -0.3552 | 0.701 | 0.1436 | -0.6421 | 0.526 | <.0001 | |
| Drive action | Driver condition: non normal (Reference: normal) | 1.4458 | 4.245 | <.0001 | 0.6403 | 1.897 | <.0001 |
| Front head collision | -0.0259 | 0.974 | 0.9126 | 0.2869 | 1.332 | 0.0022 | |
| Negotiating a curve (Reference: others) | 0.5627 | 1.755 | 0.0374 | 0.2079 | 1.231 | 0.1029 | |
| Roll over | 2.5057 | 12.252 | <.0001 | 1.8960 | 6.659 | <.0001 | |
| Driver was improperly restrained:yes (reference=no) | 1.6077 | 4.991 | <.0001 | 1.0005 | 2.720 | <.0001 | |
| Driver alcohol citation record: yes (reference: no) | 0.3124 | 1.367 | 0.4056 | 0.6363 | 1.889 | 0.0033 | |
| Driver had an improper driver action:yes (reference: no) | 1.6077 | 1.453 | <.0001 | 1.0005 | 1.300 | <.0001 | |
| Speed limit was not complied (Reference: speed limit was compiled) | 0.8734 | 2.395 | 0.0040 | -0.1024 | 0.903 | 0.5632 | |