% ISS>8 (n=232; 6.8%) | %ISS≤8 (n=3158; 93.2%) | OR | 95% CI | |
---|---|---|---|---|
Age (in years) | ||||
≤5 | 8.6 | 7.4 | 1.27 | 0.7 to 2.2 |
6–12 | 36.6 | 35.8 | 1.17 | 0.8 to 1.7 |
13–19 | 13.8 | 16.2 | 0.99 | 0.7 to 1.6 |
20–39 | 27.0 | 30.6 | 1.0 | Reference |
≥40 | 14.2 | 10.0 | 1.63 | 1.0 to 2.6 |
Crash characterstics | ||||
Motor vehicle involvement* | 36.1 | 13.7 | 3.6 | 2.7 to 4.7 |
Paved surface† | 79.7 | 77.8 | 1.1 | 0.8 to 1.6 |
Speed >15 mph‡ | 28.1 | 22.3 | 1.4 | 1.0 to 1.9 |
Gender | ||||
Male | 75.4 | 71.7 | 1.2 | 0.9 to 1.7 |
Female | 24.6 | 28.4 | 1.0 | Reference |
Helmet use | 52.6 | 49.1 | 0.9 | 0.7 to 1.2 |
*Reference group: all other crashes not involving moving motor vehicle.
†Reference group: all unpaved surfaces.
‡Reference group: self reported speed <15 mph.