Occupant, vehicle, and collision characteristics of at risk subjects by exposure (contiguous occupants’ restraint use) group
| Exposed (unbelted) | Unexposed (belted) | Total (%) | p Value | |
|---|---|---|---|---|
| Number of sample subjects (%) | 28429 (18.7) | 123762 (81.3) | 152191 (100) | |
| Weighted number of subjects (%) | 3060029 (16.6) | 15366655 (83.4) | 18426684 (100) | |
| Occupant | ||||
| Age in years, mean (SE) | 27.5 (0.25) | 28.8 (0.25) | 28.6 (0.23) | <0.001 |
| Gender (%) | <0.001 | |||
| Male | 55.7 | 47.9 | 49.2 | |
| Female | 44.3 | 52.1 | 50.8 | |
| Seating position (%) | <0.001 | |||
| Driver | 42.7 | 40.0 | 40.4 | |
| Front seat outboard | 42.2 | 37.8 | 38.6 | |
| Row 2 driver’s side and outboard | 15.2 | 22.2 | 21.1 | |
| Seat belt use (%) | <0.001 | |||
| Belted | 35.0 | 94.5 | 84.6 | |
| Unbelted | 65.1 | 5.5 | 15.4 | |
| Injury (%) | <0.001 | |||
| Any injury | 17.6 | 7.2 | 8.9 | |
| Non-incapacitating | 10.2 | 4.6 | 5.5 | |
| Incapacitating | 6.1 | 2.2 | 2.9 | |
| Death | 0.7 | 0.1 | 0.2 | |
| Vehicle | ||||
| Vehicle type (%) | <0.001 | |||
| Automobile | 75.9 | 72.3 | 72.9 | |
| Sports utility vehicle | 5.1 | 7.7 | 7.2 | |
| Van/minivan | 6.5 | 9.5 | 9.0 | |
| Pickup truck | 7.4 | 7.6 | 7.6 | |
| Other | 5.0 | 3.0 | 3.3 | |
| Curb weight in lbs (%) | <0.001 | |||
| <2500 | 26.0 | 22.3 | 22.8 | |
| 2500–3000 | 26.9 | 28.3 | 28.1 | |
| >3000 | 47.1 | 49.5 | 49.1 | |
| Collision | ||||
| Crash type (%) | <0.001 | |||
| Frontal | 41.9 | 24.5 | 27.4 | |
| Side | 50.0 | 58.1 | 56.8 | |
| Rear | 8.1 | 17.4 | 15.9 | |
| Collision severity (%) | <0.001 | |||
| Minor | 31.6 | 37.7 | 36.7 | |
| Moderate/severe | 68.4 | 62.3 | 63.3 | |
| Mean (SE) travel speed in mph | 26.9 (0.43) | 23.2 (0.40) | 23.8 (0.40) | <0.001 |