Do seat belts and air bags reduce mortality and injury severity after car accidents?

作者：Justin S. Cummins, Kenneth J. Koval, Robert V. Cantu, Kevin F. Spratt · 发表于：PubMed · 年份：2011 · 被引用次数：64 · 研究领域：Trauma and Emergency Care Studies、Traffic and Road Safety、Injury Epidemiology and Prevention

We studied National Trauma Data Bank data to determine the effectiveness of car safety devices in reducing mortality and injury severity in 184,992 patients between 1988 and 2004. Safety device variables were seat belt used plus air bag deployed; only seat belt used; only air bag deployed; and, as explicitly coded, no device used. Overall mortality was 4.17%. Compared with the no-device group, the seat-belt-plus-air-bag group had a 67% reduction in mortality (adjusted odds ratio [AOR], 0.33; 99% confidence interval [CI], 0.28-0.39), the seatbelt- only group had a 51% mortality reduction (AOR, 0.49; 99% CI, 0.45-0.52), and the air-bag-only group had a 32% mortality reduction (AOR, 0.68, 99% CI, 0.57-0.80). Injury Severity Scores showed a similar pattern.