Table 3.

Model-based adjusted OR (95% CI) based on proportional odds regression for higher versus lower ISS

Variable	OR (95% CI)	P value
Mechanism AUTO versus ATV	0.95 (0.49 to 1.81)	0.8662
Mechanism MOTO versus ATV	0.87 (0.38 to 1.97)	0.7375
Mechanism AUTO versus MOTO	0.60 (0.38 to 0.94)	0.0245
Sex Female versus male	0.69 (0.51 to 0.94)	0.0195
Paediatric versus adults	0.83 (0.49 to 1.38)	0.4665
Hispanic versus non-Hispanic	0.90 (0.51 to 1.61)	0.7333
Drug Use versus no drug use	3.73 (2.46 to 4.65)	<0.0001
Child seat/seat belt versus no protective equipment	0.29 (0.21 to 0.40)	<0.0001
Protective clothing/helmet versus no protective equipment	0.74 (0.33 to 1.66)	0.4589

Bold values denote statistical significance.

ATV, all-terrain vehicle; AUTO, automobile; ISS, Injury Severity Score; MOTO, motorcycle.