Multiple Casualty Incidents at a Level I Trauma Center: A 15-year Analysis

Limited evidence regarding multiple casualty outcomes exists. Given resource strain with increasing patient load, we hypothesized that patients involved in a multiple casualty incident have worse outcomes compared to standard trauma patients. Multiple casualty victims from 2006 to 2021 at our institution were identified; admission data and trauma outcomes were then compared to standard trauma patients. Chi-square tests and Mann-Whitney U-tests were performed for categorical and non-normal continuous data, respectively. Logistic regression was performed to evaluate associations with mortality and intensive care unit (ICU) admission. We identified 39,924 patients, of which 612 were multiple casualty patients (1.5%). Multiple casualty involvement was associated with younger age (29 y versus 44 y, P