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조재홍,함은미,표창해,박현경,박근홍,김한범,박진형,이유성,김지선,송은곤 대한응급의학회 2022 대한응급의학회지 Vol.32 No.6
Objective: The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus- 2, is a global concern. This study aimed to examine the clinical characteristics, demographics and outcomes of COVID-19 patients in the emergency department (ED) and explore clinical predictors of in-hospital mortality. Methods: This single-center, retrospective, observational study used 1,003 adult patients with laboratory-confirmed COVID-19 who went to the ED and were admitted to the hospital between February 28 and September 30, 2020. Results: The median age of the included patients was 55 (37-68) years, and 533 were women (53.1%). Severe COVID- 19 was noted in 173 patients (17.2%); seven patients (0.7%) received mechanical ventilation. The mortality rate was 2.1%. Multivariable Cox regression analysis found the risk factors associated with in-hospital death of patients (age >70 years [hazard ratio (HR), 27.411; P<0.001], albumin level <3.5 g/dL [HR, 12.273; P<0.001], CURB-65 [confusion, urea nitrogen, respiratory rate, blood pressure, 65 years of age and older] score ≥3 [HR, 10.137; P=0.002] and platelet count <100×109/L [HR, 3.281; P=0.024]) on admission. Conclusion: Age>70 years, hypoalbuminemia, CURB-65≥3 and thrombocytopenia on admission were independent risk factors for mortality in patients hospitalized with COVID-19. Early detection of these predictors and application of CURB- 65 score in the ED may provide guidance for appropriate risk stratification at triage and disposition of patients at increased risk of poor prognosis.