Those with OR >2 were patients’ gender being male (OR, 2.35), COPD (OR, 2.11), previous PVD surgery (OR, 2.66), systemic sepsis just before surgery (OR, 2.16), platelet levels <80 000/μL (OR, 2.29), albumin <3.5 (OR, 2.40), and Na <130 mEq/L (OR, 2.63). This evidence concerns the gene ALB and chronic obstructive pulmonary disease.