Demographic, Clinical, and Behavioral Determinants of 7-Year Weight Change Trajectories in Roux-en-Y Gastric Bypass Patients.

Michelle R. Lent, Yirui Hu, Peter N Benotti, Anthony T Petrick, G Craig Wood, Christopher D Still, H Lester Kirchner

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: Weight change trajectories after weight-loss surgery may vary significantly.

OBJECTIVES: This study evaluated the weight trajectories of Roux-en-Y gastric bypass (RYGB) patients and identified the distinct clinical, behavioral, and demographic features of patients by trajectory.

SETTING: Data from 2918 RYGB patients from a comprehensive medical center between January 2004 and November 2016 were included.

METHODS: This retrospective, observational study used data for RYGB patients up to year 7 postsurgery. Group-based trajectory models were fitted for percentage weight change. Variables evaluated by trajectory included age, sex, diagnoses, medications, smoking, presurgical body mass index, preoperative weight loss, and early postoperative weight loss.

RESULTS: Of 3215 possible patients, 2918 (90.8%) were included (mean age = 46.2 ± 11.2 yr, body mass index = 46.9 ± 7.9 kg/m

CONCLUSION: Select clinical, demographic, and behavioral factors may increase or decrease the chance for better weight loss after RYGB.

Original languageAmerican English
JournalSurgery for Obesity and Related Diseases
StatePublished - Jul 30 2018

Keywords

  • Predictors
  • Roux-en-Y Gastric bypass
  • Weight loss trajectories

Disciplines

  • Medicine and Health Sciences

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