Factor · Safety

Seat belt use

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

Strong for injury mortality
Seat belt useInterventional / RCT evidence
Observational study
Front-seat seat-belt use reduces fatal/nonfatal injury risk by ~60%; trauma database mortality OR ~0.49 vs no restraint
Causal status: Strong causal/interventional evidence for crash injury prevention
Reliability / bias notes: Crash-conditioned evidence; risk-taking behaviours correlated with non-use
Cummins et al. · 2011 · PMID 21720604
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