COVID-19(64) Coronavirus disease 2019(52) Patient(37) coronavirus disease(34) coronavirus(34) acute respiratory syndrome(32) SARS-CoV-2(28) pandemic(24) disease(24) Infection(23) patients with COVID-19(20) identify(20) investigated(17) evaluated(17) 95% confidence interval(16) association(15) severe acute respiratory syndrome coronavirus-2(14) risk(14) SARS-COV-2 infection(13) age(13) Mortality(13) Care(13) Accuracy(12) retrospective(12) polymerase chain(12) Hepatitis B virus(11) significantly higher(11) Symptom(11) enrolled(11) Admission(11)