Adjusted relative risks of safety belt use against fatalities, compared with no safety belt use, by vehicle type, vehicle rollover status and age for rear seat passengers
| All vehicles | Vehicles rollover status | Age | |||
|---|---|---|---|---|---|
| Rollover | No Rollover | 16–64 | 65+ | ||
| aRR* (95% CI) | aRR* (95% CI) | aRR* (95% CI) | aRR* (95% CI) | aRR* (95% CI) | |
| *Adjusted relative risks after adjustment for occupant’s age, occupant’s sex, seating position, air bag presence, and two-way interactions of seating position and safety belt use, and vehicle type and safety belt use, vehicle type and seating position, and a three-way interaction of vehicle type, seating position, and safety belt use. | |||||
| Passenger cars | |||||
| Rear seat, outboard | 0.42 (0.38–0.46) | 0.24 (0.20–0.29) | 0.51 (0.45–0.57) | 0.37 (0.33–0.42) | 0.69 (0.55–0.87) |
| Rear seat, center | 0.30 (0.20–0.44) | 0.10 (0.05–0.18) | 0.46 (0.30–0.71) | 0.28 (0.18–0.42) | 0.44 (0.21–0.92) |
| Light trucks, vans, and utility vehicles | |||||
| Rear seat, outboard | 0.25 (0.21–0.29) | 0.19 (0.15–0.22) | 0.39 (0.32–0.48) | 0.22 (0.16–0.26) | 0.41 (0.32–0.54) |
| Rear seat, center | 0.34 (0.24–0.48) | 0.15 (0.09–0.25) | 0.72 (0.46–1.12) | 0.31 (0.21–0.45) | 0.50 (0.25–1.01) |