title: Medicare and Medicaid status predicts prolonged length of stay after bariatric surgery.
abstract: BACKGROUND
  The outcomes of Medicare patients undergoing bariatric surgery have been particularly scrutinized, especially with the Center of Medicare and Medicaid Services' decision to offer bariatric surgery benefits.
  
  
  METHODS
  The length-of-stay (LOS) data were analyzed from the National Hospital Discharge Survey from 2002 to 2004. To test the hypothesis that Medicare and Medicaid beneficiaries were more likely to have a prolonged length of stay (PLOS), we used a multivariate logistic regression model controlling for age, gender, hospital size, and year of procedure.
  
  
  RESULTS
  An estimated 312,000 bariatric procedures were performed nationally from 2002 to 2004. The average patient age was 41.5 years (range 14-75) and 83.6% were women. The in-hospital mortality rate was reported to be .17%. A PLOS occurred in 3.7% of the population. The Medicare and Medicaid beneficiaries represented 5.7% and 6.2% of the population, respectively. The Medicare beneficiaries were 6.0 times (95% confidence interval 2.5-14; P <.001) as likely to have a PLOS, and Medicaid beneficiaries were 3.2 times (95% confidence interval 1.2-8.9; P = .02) as likely to have a PLOS as others after controlling for age, gender, hospital size, and year of procedure. For every 10-year increase in age, the risk of a PLOS increased by 30% (P <.012).
  
  
  CONCLUSIONS
  Medicare and Medicaid beneficiaries are both at an increased risk of a PLOS. This study was not designed to identify the potential causes of a PLOS. Data from prospectively collected bariatric registries might aid surgeons in assessing the risk/benefit ratio of surgical interventions in groups regarded as high risk.
authors.affiliation: Department of Surgery, Division of Bariatric Surgery, Albert Einstein Healthcare Network, Philadelphia, Pennsylvania 19027, USA. dallalr@einstein.edu
authors.forename: Ramsey M
authors.initials: RM
authors.lastname: Dallal
authors.forename: Tejwant
authors.initials: T
authors.lastname: Datta
authors.forename: Leonard E
authors.initials: LE
authors.lastname: Braitman
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D050110:Bariatric Surgery; D015897:Comorbidity; D005260:Female; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data*; D016015:Logistic Models; D008297:Male; D008484:Medicaid; D006278:Medicare; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D014481:United States