Bariatric Support Groups Predicts Long-term Weight Loss



Support groups are an integral part of bariatric surgery (BS) programs yet there is limited evidence for an association between support group attendance and BS weight outcomes.


University Hospital, Spain.


This study examined the effect of support group attendance on weight loss (WL) at short- and long-term follow-up (FU) following BS.


Participants were 531 (mean body mass index (BMI) = 45.8 (5.4) kg/m2; mean age 45.9 (11.1) years, 76.4% females) who underwent BS (Roux-en-Y gastric bypass (RYGB): 233 (43.8%); sleeve gastrectomy (SG): 298 (56.2%)) in our clinic. The bariatric support group program (BSGP) consisted of two subprograms: Novel-BSGP (N-BSGP; first 12 months after surgery) and Experienced-BSGP (E-BSGP; FU between 12 months 5 years after BS).


Three hundred and twenty-three (60.8%) and 129 (24.3%) participants attended at least one session of N-BSGP and E-BSGP, respectively. Linear regression analyses showed that number of sessions attended during year 1 predicted percent total body WL (%TBWL (β = 0.381, p < 0.001)) and percent excess WL (%EWL (β = 0.928, p < 0.001)) at one year and number of sessions attended during years 2–5 were positively related to %TBWL and %EWL achieved at 5 years (%EWL: β = 0.162 (p = 0.014) and %TBWL: β = 0.378 (p = 0.013)) respectively.


We observed a significant beneficial effect of a post-surgical support group program on short- and long-term body WL after BS.

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The authors acknowledge Dr. Marci Gluck for her critical review in support of this manuscript.

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Corresponding author

Correspondence to Violeta Moizé.

Ethics declarations

The Ethics Committee of Hospital Clinic Barcelona, Spain, approved this study. Participants were > 5 years post-op at the time of informed consent was obtained.

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The authors declare that they have no conflict of interest.

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Andreu, A., Jimenez, A., Vidal, J. et al. Bariatric Support Groups Predicts Long-term Weight Loss. OBES SURG 30, 2118–2123 (2020).

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  • Bariatric surgery
  • Weight loss
  • Peer support
  • Multidisciplinary team