International journal of epidemiology
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This study was designed to break down the association of age, sex and seat belt use with risk of death for drivers of automobiles involved in a crash into two theoretical components: intrinsic severity of the crash and occupant resilience. ⋯ We conclude that in drivers involved in traffic crashes the association of age, sex and seat belt use with risk of death depends on the component of risk considered: severity of the crash or the occupant's resilience to energy.