SARS-CoV-2	severe acute respiratory syndrome coronavirus 2
COVID-19	coronavirus disease 19
ROC	receiver operating characteristic
CRP	C-reactive protein
LDH	lactate dehydrogenase
SD	standard deviation
AUC	area under the curve
CAR	CRP-to-albumin ratio
NLR	neutrophil-to-lymphocyte ratio
FAR	fibrinogen-to-albumin ratio
PLR	platelet-to-lymphocyte ratio
MLR	monocyte-to-lymphocyte ratio
CKD	chronic kidney disease
SII	systemic immune-inflammation index
PNI	prognostic nutritional index
RT-PCR	real-time reverse transcription polymerase chain reaction
IQR	interquartile range
CI	confidence interval