ICU	Intensive Care Unit
SMU	Standard Medical Unit
STol	Standard to Intensive Care
PREDICT score	Predicting Risk factors for Early Determination of ICU Transfer
AP-HM	Assistance Publique des Hôpitaux de Marseille (Public Assistance Hospital of Marseille)
Na	natremia
CRP	C-reactive protein
FRT	ferritinemia
LDH	lactate dehydrogenase
CREAT	creatinine
BILI	total bilirubin
ASAT	aspartate aminotransferase
ALAT	alanine aminotransferase
LY	lymphocyte count
NEU	neutrophils cells count
NLR	neutrophil–lymphocyte ratio
WHO	World Health Organization
RT-PCR	real time polymerase chain reaction
SpO2	arterial oxygen saturation
ROC	receiver operating characteristic
RR	respiratory rate
T °C	temperature
IQR	interquartile range