The multivariable adjustment included the SOFA, C-reactive protein/albumin ratio, neutrophil/lymphocyte ratio, modified Glasgow prognostic score, being male, malignancy, diabetes mellitus, chronic kidney disease, chronic liver disease, chronic obstructive pulmonary disease, stroke, heart failure, smoking, alcoholic use, and causes of ICU admission. Here, ALB is linked to chronic obstructive pulmonary disease.