ALB and chronic obstructive pulmonary disease: Independent predictors of any morbidity or mortality in the first 30 postoperative days following RBS or emergent bariatric surgery included: preoperative albumin level less than 3.5 g/dL (p < 0.05), history of index procedure within the previous 30 days (p < 0.05), prior history of RBS (p < 0.05), prior history of duodenal switch (DS) (p < 0.05), and history of chronic obstructive pulmonary disease (p < 0.05).