The impact of Sex on Survival of Unintentional Trauma in South Korea: retrospective, observational, case-control study.

Abstract

This study aimed to describe the relationship between sex and survival in patients with unintentional trauma. This retrospective, national population-based observational, case-control study involved a collection of Korean traumatic patients who were transferred to the emergency department by a Korean emergency medical service from January 1, 2018, to December 31, 2018. Propensity Score Matching was used. The primary outcome was survival until hospital discharge. Of 25,743 patients with unintentional trauma, 17,771 were male and 7,972 were female. Prior to propensity score matching, there was no sex difference in survival (92.6% vs 93.1%, p=0.105). After adjustment for confounders by propensity score matching, there was still no sex difference in survival (93.6% vs 93.1%). There was no sex effect on the survival of patients with severe trauma. Further studies with patients of reproductive age and a greater population are needed to analyze the effect of estrogen on survival in patients with trauma.