Table 2

 Crude and adjusted risk ratios and 95% confidence intervals for the association between contiguous occupant seat belt use and injury by at risk occupants seat belt use and seating position

Seating positionBeltedUnbeltedTotal
RR (95% CI)RR (95% CI)*RR (95% CI)RR (95% CI)*RR (95% CI)RR (95% CI)*
*Adjusted for at risk occupant’s age, seating position, vehicle type, collision type, travel speed, and crash severity (and at risk occupants’ own seat belt use for total).
All1.9 (1.8 to 2.2)1.9 (1.7 to 2.1)1.3 (1.1 to 1.4)1.0 (0.9 to 1.1)2.6 (2.3 to 2.9)1.4 (1.3 to 1.5)
    Driver1.7 (1.6 to 2.0)1.8 (1.6 to 2.0)1.1 (1.0 to 1.3)1.2 (1.0 to 1.4)2.5 (2.2 to 2.8)1.5 (1.4 to 1.6)
    Passenger1.9 (1.7 to 2.1)1.9 (1.7 to 2.2)0.8 (0.7 to 1.0)0.9 (0.8 to 1.0)2.4 (2.2 to 2.7)1.3 (1.2 to 1.5)
    Row 2 driver’s and passenger’s side1.9 (1.5 to 2.6)1.9 (1.5 to 2.5)1.7 (1.3 to 2.2)1.2 (0.9 to 1.5)2.9 (2.4 to 3.5)1.3 (1.1 to 1.6)