We investigated association between epidemiological and clinical characteristics of coronavirus disease 2019 (COVID-19) patients and clinical outcomes in Korea. This nationwide retrospective cohort study included 5621 discharged patients with COVID-19, extracted from the Korea Disease Control and Prevention Agency (KDCA) database. We compared clinical data between survivors (n = 5387) and non-survivors (n = 234). We used logistic regression analysis and Cox proportional hazards model to explore risk factors of death and fatal adverse outcomes. Increased odds ratio (OR) of mortality occurred with age (≥ 60 years) [OR 11.685, 95% confidence interval (CI) 4.655–34.150, p < 0.001], isolation period, dyspnoea, altered mentality, diabetes, malignancy, dementia, and intensive care unit (ICU) admission. The multivariable regression equation including all potential variables predicted mortality (AUC = 0.979, 95% CI 0.964–0.993). Cox proportional hazards model showed increasing hazard ratio (HR) of mortality with dementia (HR 6.376, 95% CI 3.736–10.802, p < 0.001), ICU admission (HR 4.233, 95% CI 2.661–6.734, p < 0.001), age ≥ 60 years (HR 3.530, 95% CI 1.664–7.485, p = 0.001), malignancy (HR 3.054, 95% CI 1.494–6.245, p = 0.002), and dyspnoea (HR 1.823, 95% CI 1.125–2.954, p = 0.015). Presence of dementia, ICU admission, age ≥ 60 years, malignancy, and dyspnoea could help clinicians identify COVID-19 patients with poor prognosis.
【저자키워드】 Risk factors, Epidemiology, 【초록키워드】 COVID-19, coronavirus disease, Mortality, intensive care, Clinical characteristics, prevention, diabetes, risk factor, database, adverse outcomes, ICU, Clinical outcome, Dementia, Patient, ICU admission, Isolation, Control, death, age, epidemiological, Admission, Dyspnoea, association, Odds ratio, COVID-19 patient, discharged patient, malignancy, retrospective cohort study, Logistic regression analysis, regression equation, 95% CI, clinician, 95% confidence interval, Clinical data, hazard ratio, poor prognosis, help, survivor, variable, non-survivor, multivariable, predicted, identify, occurred, investigated, Increased, Cox proportional hazard, Presence, with COVID-19, 【제목키워드】 risk factor, adverse outcome, clinical, COVID-19 patient, retrospective cohort study, Course,