Efficiency Seat belt
lives saved seat belts , airbags in united states, 1991–2001
an analysis conducted in united states in 1984 compared variety of seat belt types alone , in combination air bags. range of fatality reduction front seat passengers broad, 20% 55%, range of major injury, 25% 60%. more recently, centers disease control , prevention has summarized data stating seat belts reduce serious crash-related injuries , deaths half. seatbelt malfunctions result of there being slack in seatbelt @ time of accident.
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