The effect of seat belt legislation on injuries sustained by car occupants.

Details are given of the injuries sustained by 402 car drivers, 209 front seat passengers and 147 back seat passengers involved in road accidents during the two 4-month periods before and after the introduction of the compulsory wearing of seat belts on 1 February 1983. Comparisons are made between the injury patterns in those wearing and not wearing seat belts and in back seat passengers.