title: Demographically associated variations in outcomes after bariatric surgery.
abstract: BACKGROUND
  The incidence of morbid obesity and the use of bariatric surgery as a weight loss tool have increased significantly over the past decade. Despite this increase, there has been limited large-scale database evaluation of the effects of demographics on postoperative occurrences.
  
  
  METHODS
  An analysis of the American College of Surgeons National Surgical Quality Improvement Program database from 2005 to 2007 was performed. The bariatric procedures identified were open Roux-en-Y gastric bypass, laparoscopic Roux-en-Y gastric bypass, adjustable gastric banding, vertical banded gastroplasty, restrictive procedures other than vertical banded gastroplasty, and biliopancreatic diversion/duodenal switch. Outcomes examined were 30-day mortality and American College of Surgeons National Surgical Quality Improvement Program-defined morbidities. Multivariate analysis was performed.
  
  
  RESULTS
  A total of 18,682 bariatric procedures were identified. Increased body mass index, age, and undergoing open Roux-en-Y gastric bypass were associated with increased rates of postoperative complications. Hispanic and African American patients were noted to have increased rates of certain postoperative complications.
  
  
  CONCLUSIONS
  Demographic factors may influence the postoperative course of patients undergoing bariatric surgery. Prospective studies may further elucidate the associations between demographic factors and specific postoperative complications.
authors.affiliation: Department of Surgery, General Surgery Division, University of Maryland Medical Center, Baltimore, 21201-1595, USA. pturner@smail.umaryland.edu
authors.forename: Patricia L
authors.initials: PL
authors.lastname: Turner
authors.forename: Tolulope A
authors.initials: TA
authors.lastname: Oyetunji
authors.forename: Gerald
authors.initials: G
authors.lastname: Gantt
authors.forename: David C
authors.initials: DC
authors.lastname: Chang
authors.forename: Edward E
authors.initials: EE
authors.lastname: Cornwell
authors.forename: Terrence M
authors.initials: TM
authors.lastname: Fullum
mesh_terms: D000328:Adult; D001741:Black or African American / Q000706:statistics & numerical data; D017677:Age Distribution; D050110:Bariatric Surgery / Q000379:methods* / Q000401:mortality*; D015992:Body Mass Index; D016208:Databases, Factual; D005260:Female; D015390:Gastric Bypass / Q000379:methods; D006630:Hispanic or Latino / Q000706:statistics & numerical data; D006801:Humans; D010535:Laparoscopy / Q000379:methods; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology* / Q000208:ethnology; D012307:Risk Factors; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology