Table 5. Odds ratios of variables.

Relative variable	Variable value	OR
Truck: C = 1	Passenger vehicle: C = 0	0.022
Public/commercial vehicle: SU = 1	Private vehicle: SU = 0	0.004
No injury: I = 0	Minor injury: I = 1	0.951
Outside roadway: RR = 0	On roadway: RR = 1	0.073
Rollover: AT = 0	Lateral: AT = 3	1.225
6 a.m.–17 p.m.: H = 0	18 p.m.–5 a.m.: H = 1	3.855
No restriction: VL = 0	5–30 km/h: VL = 1	1.888
Male: S = 0	Female: S = 1	0.933
Under 15 years old: A = 0	16 years old and above: A = 1	0.977
March-May: M = 1	June-Augst: M = 2	0.991
Weekday: WD = 0	Weekend: WD = 1	1.563
Wet/slippery lane: VC = 0	Dry lane: VC = 1	0.946
No alcohol involved: VA = 0	Alcohol involved: VA = 1	3.236
Lighted: L = 0	Not Lighted: L = 1	1.306
Sunny: WT = 0	Rainy/Snow: WT = 1	0.839