Out-of-Hospital Cardiac Arrest Due to Drowning: Drowning Locations and Outcomes-a Nationwide Observational Study

Background: Little is known about the effect of drowning locations to outcomes in out-of-hospital cardiac arrest due to drowning. This study aims to describe drowning locations and associated outcomes in the South Korea. Methods: All out-of-hospital cardiac arrest patients due to drowning and treated with emergency medical services were collected from nationwide out-of-hospital cardiac arrest registry between 2008 and 2012. Main outcome was survival hospital discharge measured by hospital medical record review. Descriptive analysis using chi-square test and t-test were performed for comparing drowning locations and survival. Multivariable logistic regression analysis were performed adjusting for potential confounders to calculate adjusted odds ratios and 95% confidence intervals for determining effect size of drowning location with sport or leisure activity to the survival discharge. Results: Of 113,075 total out-of-hospital cardiac arrest patients, 1,982 patients (1.8%) were drowning victims. After exclu...