Factors Associated with Emergency Department Survival of Out-of-Hospital Cardiac Arrest following Traumatic Brain Injury: A Retrospective Cohort Study.

Of 46,760 traumatic out-of-hospital cardiac arrest cases, 22,821 involved traumatic brain injury, and 16,885 met inclusion criteria with recorded emergency department outcomes.

Overall, 2,872 patients (17.0%) survived to hospital admission.

Younger age, longer on scene time, and shorter hospital-to-scene distance were independently associated with improved odds of survival.

In contrast, on-scene time <10 minutes (aOR 0.65, 95% CI: 0.53-0.79) and bone and joint injuries, including closed fractures, open fractures, and dislocations, were associated with reduced survival.