What question did this study set out to answer?

This research aims to examine the effects of bariatric surgery on eating disorders and identify predictive factors related to symptom severity pre- and post-surgery.

March 13, 2026Open Access

Impact of bariatric surgery and predictive factors for eating disorders before and after surgery: a prospective observational study

SASepideh Alijani EHElham HojajiTehran University of Medical Sciences BGBehrooz GhanbariIran University of Medical Sciences

Key Points

This research aims to examine the effects of bariatric surgery on eating disorders and identify predictive factors related to symptom severity pre- and post-surgery.
Prospective observational design
Assessment of eating disorder symptoms before and after bariatric surgery
Evaluation of demographic factors such as age and sex
Bariatric surgery significantly reduces symptoms of eating disorders
Surgical technique showed notable differences in symptom reduction, especially with sleeve gastrectomy
Younger age and female sex identified as factors linked to increased severity of symptoms post-surgery

Abstract

MBS reduce symptoms of EDs, with a trend towards SG showing the most prominent effect. Younger age and female sex were independently associated with greater severity of symptoms after surgery. These findings highlight the importance of targeted postoperative psychological support and underscore the interplay between biological and psychological factors.

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