Automobile driver fatalities in frontal impacts: air bags compared with manual belts.
P L Zador and
M A Ciccone
Insurance Institute for Highway Safety, Arlington, Va. 22201.
OBJECTIVES. The effectiveness of air bags was estimated in thisstudy by comparing driver fatalities in frontal crashes withdriver fatalities in nonfrontal crashes, for cars with air bagsand manual belts and cars with manual belts only. METHODS. FatalAccident Reporting System data for drivers fatally injured during1985 to 1991 in 1985 to 1991 model year cars that were equippedwith air bags in or before model year 1991 were analyzed. RESULTS.Driver fatalities in frontal crashes in air bag cars were 28%lower than those in comparable cars with manual belts only.This percentage was used for estimating the overall fatalityreduction in air bag cars. The reduction was greater in largecars (50%) than in midsize cars (19%) or in small cars (14%).Air bags reduced driver fatalities in frontal crashes involvingejection by about 9%. Fatalities in frontal crashes among driverswho were reportedly using manual belts at the time of the crashwere reduced by about 15%. The comparable reduction among driverswho were reportedly not using manual belts was 31%. CONCLUSION.It was estimated that air bags reduced the total number of alldriver fatalities by about 19%.
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