APACHE II	Acute Physiology and Chronic Health Evaluation II
ARDS	Severe acute pneumonia-associated respiratory syndrome
AST	Aspartate aminotransferase
AUC	Area under the ROC curve
BMI	Body mass index
COVID-19	Coronavirus disease 2019
CK	Creatine kinase
CONUT	The controlling nutritional status score
CRP	C-reactive protein
GI	Gastrointestinal
GLIM	Global Leadership Initiative on Malnutrition
ICU	Intensive care unit
IL	Interleukin
LDH	Lactate dehydrogenase
LOS	Length of stay
MNA	Mini Nutritional Assessment
MNA-sf	MNA-short form
mNUTRIC	Modified Nutrition Risk in the Critically ill
MUST	Malnutrition Universal Screening Tool
NR	Nutrition risk
NRI	Nutritional Risk Index
NRS-2002	Nutrition Risk Screening 2002
SARS-CoV-2	Severe acute respiratory syndrome-coronavirus-2
SGA	Subjective Global Assessment
SOFA	Sequential Organ Failure Assessment