Data are n (%) or median (P25，P75).The significance level is 0.05.P
values were calculated using Mann-Whitney U test for continuous
variables and the χ2 test for categorical variables.
BMI:Body Mass Index; SOFA:Sequential Organ Failure Assessment;
APACHE:Acute Physiology and Chronic Health Evaluation; PEEP:Positive
End-Expiratory Pressure; Cydn:Dynamic lung compliance;
FiO2:Fractional concentration of oxygen in inspired air;
LAC:Lactic acid; CRP:C-reactive protein; PCT:Procalcitonin; D-D:D-Dimer;
WBC:White blood cell; LYM:Lymphocyte; Hb:Hemoglobin; PLT:Platelet;
BNP:Brain natriuretic peptide; TnT=TroponinT; LDH:Lactate dehydrogenase;
ALT:Alanine aminotransferase; AST:Aspartate aminotransferase; TBIL:Total
bilirubin; Cr:Creatinine; eGFR:Estimated Glomerular Filtration Rate.
a Data at the beginning of invasive mechanically
ventilated.
b Medication during ICU treatment.