Table 4

Multivariate logistic regression analysis to evaluate the effect of class of vehicle on risk of injury severity score (ISS) ⩾9* †

Odds ratio of ISS ⩾995% Confidence intervalp Value
*Analysis performed on 451 cases with sufficient data for variables in the analysis.
†Adjusted for impact speed and age as ordinal categorical variables.
Vehicle class
    Passenger vehicleReference
    LTV1.80.99 to 3.340.05
    Van1.50.76 to 3.040.24
Speed category (km/h)
    ⩽20Reference
    21–302.81.5 to 5.20.001
    31–409.55.0 to 17.9<0.0001
    41–5015.36.6 to 35.7<0.0001
    >5055.521.6 to 142.4<0.0001
Age category
    ChildrenReference
    Adults1.50.8 to 2.70.15