Abbreviations:
COVID-19, coronavirus disease; SARS-CoV-2, severe acute respiratory syndrome coronavirus-2; CFR, case fatality rate; NHC, National Health Commission; ALT, alanine aminotransferase; AST, aspartate aminotransferase; BUN, blood urea nitrogen; SD, standard deviation; IQR, interquartile range; ROC, receiver operating characteristic; AUC, area under curve