Diabetes Remission Status during Seven-year Follow-up of the Longitudinal Assessment of Bariatric Surgery Study

Jonathan Q. Purnell, Elizabeth N. Dewey, Blandine Laferrère, Faith Selzer, David R. Flum, James E. Mitchell, Alfons Pomp, Walter J. Pories, Thomas Inge, Anita Courcoulas, Bruce M. Wolfe

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Context: Few studies have examined the clinical characteristics that predict durable, long-term diabetes remission after bariatric surgery. Objective: To compare diabetes prevalence and remission rates during 7-year follow-up after Roux-en-Y gastric bypass (RYGB) and laparoscopic gastric banding (LAGB). Design: An observational cohort of adults with severe obesity recruited between 2006 and 2009 who completed annual research assessments for up to 7 years after RYGB or LAGB. Setting: Ten US hospitals. Participants: A total sample of 2256 participants, 827 with known diabetes status at both baseline and at least 1 follow-up visit. Interventions: Roux-en-Y gastric bypass or LAGB. Main Outcome Measures: Diabetes rates and associations of patient characteristics with remission status. Results: Diabetes remission occurred in 57% (46% complete, 11% partial) after RYGB and 22.5% (16.9% complete, 5.6% partial) after LAGB. Following both procedures, remission was greater in younger participants and those with shorter diabetes duration, higher C-peptide levels, higher homeostatic model assessment of β-cell function (HOMA %B), and lower insulin usage at baseline, and with greater postsurgical weight loss. After LAGB, reduced HOMA insulin resistance (IR) was associated with a greater likelihood of diabetes remission, whereas increased HOMA-%B predicted remission after RYGB. Controlling for weight lost, diabetes remission remained nearly 4-fold higher compared with LAGB. Conclusions: Durable, long-term diabetes remission following bariatric surgery is more likely when performed soon after diagnosis when diabetes medication burden is low and beta-cell function is preserved. A greater weight-independent likelihood of diabetes remission after RYGB than LAGB suggests mechanisms beyond weight loss contribute to improved beta-cell function after RYGB. Trial Registration clinicaltrials.gov Identifier: NCT00465829.

Original languageEnglish (US)
Pages (from-to)774-788
Number of pages15
JournalJournal of Clinical Endocrinology and Metabolism
Issue number3
StatePublished - Mar 1 2021
Externally publishedYes


  • beta-cell function
  • diabetes
  • gastric bypass
  • laparoscopic gastric band
  • remission

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical


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