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 |