Table 3: Multinomial Logistic Estimate of barrier crashes, Highway crashes.

Variables Fatality/Incapacitating Injury Non Incapacitating/Possible Injury
Coefficient Odds Ratio P-value Coefficient Odds Ratio P-value
Intercept -3.2432 <.0001 -0.9228 <.0001
Road condition (Reference: dry road conditions) Wet -1.3633 0.256 0.0291 -0.3174 0.728 0.2347
Snow -1.9766 0.139 0.0013 -1.6525 0.192 <.0001
Slush -2.2373 0.107 0.0299 -1.6814 0.186 0.0005
Ice -2.7976 0.061 <.0001 -1.1476 0.317 <.0001
Driver characteristics Age 1.1848 3.270 0.0004 0.0782 1.081 0.6248
Driver Actions Driver was improperly restrained:yes (reference=no) 1.4441 4.238 0.0002 0.9914 2.695 <.0001
Negotiating a curve (Reference: others) 1.2204 3.388 <.0001 0.2434 1.276 0.1505