title: Cost-effectiveness of Bariatric Surgery in Adolescents With Obesity.
abstract: Severe obesity affects 4% to 6% of US youth and is increasing in prevalence. Bariatric surgery for the treatment of adolescents with severe obesity is becoming more common, but data on cost-effectiveness are limited.
  
  
  
  To assess the cost-effectiveness of bariatric surgery for adolescents with obesity using recently published results from the Teen-Longitudinal Assessment of Bariatric Surgery study.
  
  
  
  A state-transition model was constructed to compare 2 strategies: no surgery and bariatric surgery. In the no surgery strategy, patients remained at their initial body mass index (calculated as weight in kilograms divided by height in meters squared) over time. In the bariatric surgery strategy, patients were subjected to risks of perioperative mortality and complications as well as initial morbidity but also experienced longer-term quality-of-life improvements associated with weight loss. Cohort demographic information-of the 228 patients included, the mean (SD) age was 17 (1.6) years, the mean (range) body mass index was 53 (34-88), and 171 (75.0%) were female-surgery-related outcomes, and base case time horizon (3 years) were based on data from the Teen-Longitudinal Assessment of Bariatric Surgery study. One-way and probabilistic sensitivity analyses were performed.
  
  
  
  Quality-adjusted life-years (QALYs), total costs (in US dollars adjusted to 2015-year values using the Consumer Price Index), and incremental cost-effectiveness ratios (ICERs). A willingness-to-pay threshold of $100 000 per QALY was used to assess cost-effectiveness.
  
  
  
  After 3 years, surgery led to a gain of 0.199 QALYs compared with no surgery at an incremental cost of $30 747, yielding an unfavorable ICER of $154 684 per QALY. When the clinical study results were extrapolated to 4 years, the ICER decreased to $114 078 per QALY and became cost-effective by 5 years with an ICER of $91 032 per QALY. Outcomes were robust in most 1-way and probabilistic sensitivity analyses.
  
  
  
  Bariatric surgery incurs substantial initial cost and morbidity. We found that surgery could be a cost-effective treatment for adolescents with severe obesity if assessed over a time horizon of 5 years. Our study underscores the need for long-term clinical trials in adolescents with at least 5 years of follow-up data that capture financial and quality-of-life end points.
authors: Institute for Technology Assessment, Massachusetts General Hospital, Boston2Division of Gastroenterology, Massachusetts General Hospital, Boston3Now at Yale School of Medicine, New Haven, Connecticut.
authors: Matthew J
authors: MJ
authors: Klebanoff
authors: Institute for Technology Assessment, Massachusetts General Hospital, Boston2Division of Gastroenterology, Massachusetts General Hospital, Boston4Harvard Medical School, Boston, Massachusetts.
authors: Jagpreet
authors: J
authors: Chhatwal
authors: Harvard Medical School, Boston, Massachusetts5Now at Department of Surgery, Boston University, Boston, Massachusetts.
authors: Jacob D
authors: JD
authors: Nudel
authors: Division of Gastroenterology, Massachusetts General Hospital, Boston4Harvard Medical School, Boston, Massachusetts.
authors: Kathleen E
authors: KE
authors: Corey
authors: Division of Gastroenterology, Massachusetts General Hospital, Boston4Harvard Medical School, Boston, Massachusetts.
authors: Lee M
authors: LM
authors: Kaplan
authors: Institute for Technology Assessment, Massachusetts General Hospital, Boston2Division of Gastroenterology, Massachusetts General Hospital, Boston4Harvard Medical School, Boston, Massachusetts.
authors: Chin
authors: C
authors: Hur
mesh_terms: D000293:Adolescent; D050110:Bariatric Surgery / Q000191:economics*; D015992:Body Mass Index; D003362:Cost-Benefit Analysis; D005260:Female; D017048:Health Care Costs / Q000706:statistics & numerical data*; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009767:Obesity, Morbid / Q000191:economics* / Q000601:surgery*; D011788:Quality of Life; D019057:Quality-Adjusted Life Years; D013997:Time Factors; D015431:Weight Loss