Adjusted* risk ratios and 95% confidence intervals for the association between injury risk and contiguous occupant seat belt use by collision type and occupants’ seat belt use
| Collision type | At risk occupants’ seat belt use | ||
|---|---|---|---|
| Belted RR (95% CI) | Unbelted RR (95% CI) | Total RR (95% CI) | |
| *Adjusted for at risk occupant’s sex, age, seating position, vehicle type, travel speed, and crash severity (and at risk occupant seat belt use for total). | |||
| Frontal | 1.8 (1.6 to 2.0) | 1.0 (0.9 to 1.1) | 1.5 (1.4 to 1.7) |
| Lateral | 2.1 (1.8 to 2.4) | 0.9 (0.8 to 1.0) | 1.3 (1.2 to 1.5) |
| Rear | 1.5 (1.0 to 2.2) | 1.4 (1.0 to 1.9) | 1.5 (1.1 to 1.9) |