ALB and interstitial lung disease: Through this method, 17 variables with the highest explanatory power for the research objective were ultimately selected, including: Gender, ICU admission, Hypertension disease, ILD, BMI, Braden score, mMRC score, Padua score, Carboxyhemoglobin, Arterial hematocrit, Lymphocytes percentage, Hemoglobin, GGT, Albumin, Cholinesterase, Urea nitrogen, LDH.