id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-315397-cm3mc7we	Park, H. C.	Clinical Outcome of Asymptomatic COVID-19 Infection Among a Large Nationwide Cohort of 5,621 Hospitalized Patients in Korea	2020-10-27		.txt	text/plain	1117	79	56	We investigated clinical outcome of asymptomatic coronavirus disease 2019 (COVID-19) and identified risk factors associated with high patient mortality using Korean nationwide public database of 5,621 hospitalized patients. The mortality rate and admission rate to intensive care unit were compared between asymptomatic and symptomatic patients. The prediction model for patient mortality was developed through risk factor analysis among asymptomatic patients. The age-adjusted Charlson comorbidity index score (CCIS) was the most potent predictor for patient mortality in asymptomatic patients. We used univariate and multivariate Cox 1 2 0 proportional hazard model to estimate risk factors associated with patient mortality. A nomogram to predict 14-day and 28-day mortality risk of the patient was built 1 2 4 based on the variables found in multivariate Cox proportional hazard model. The C-index value for prediction of overall This study examined the incidence of mortality and ICU admission among asymptomatic 1 8 4 and symptomatic patients during hospitalization due to COVID-19 infection in Korea.	./cache/cord-315397-cm3mc7we.txt	./txt/cord-315397-cm3mc7we.txt