Cited by 102Bariatric Surgery and OutcomesObesity, Physical Activity, DietBody Contouring and Surgery

What variables are associated with successful weight loss outcomes for bariatric surgery after 1 year?

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Robinson, Athena H., Adler, Sarah, Stevens, Helen B., Darcy, Alison M., Morton, John M., Safer, Debra L.·2014·Surgery for Obesity and Related Diseases

Abstract

Background Prior evidence indicates that predictors of weight loss outcomes after gastric bypass surgery fall within 5 domains: 1) presurgical factors, 2) postsurgical psychosocial variables (e.g., support group attendance), 3) postsurgical eating patterns, 4) postsurgical physical activity, and 5) follow-up at postsurgical clinic. However, little data exist on which specific behavioral predictors are most associated with successful outcomes (e.g.,≥ 50% excess weight loss) when considering the 5 domains simultaneously. The objective of this study was to specify the behavioral variables, and their respective cutoff points, most associated with successful weight loss outcomes.Methods Signal detection analysis evaluated associations between 84 pre- and postsurgical behavioral variables (within the 5 domains) and successful weight loss at ≥ 1 year in 274 postgastric bypass surgery patients.Results Successful weight loss was highest (92.6%) among those reporting dietary adherence of>3 on a 9-point scale (median = 5) who grazed no more than once-per-day. Among participants reporting dietary adherence<3 and grazing daily or less, success rates more than doubled when highest lifetime body mass index was<53.7 kg/m(2). Success rates also doubled for participants with dietary adherence = 3 if attending support groups. No variables from the physical activity or postsurgical follow-up domains were significant, nor were years since surgery. The overall model's sensitivity = .62, specificity = .92.Conclusions To our knowledge, this is the first study to simultaneously consider the relative contribution of behavioral variables within 5 domains and offer clinicians an assessment algorithm identifying cut-off points for behaviors most associated with successful postsurgical weight loss. Such data may inform prospective study designs and postsurgical interventions.

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Crossref · 10.1016/j.soard.2014.01.030

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Authors
Robinson, A. H., Adler, S., Stevens, H. B., Darcy, A. M., Morton, J. M., & Safer, D. L.
Affiliations
  • Stanford Medicine (US)
  • Stanford University (US)
Venue
Surgery for Obesity and Related Diseases
Publisher
Elsevier BV
Published
2014-07
Volume
10
Issue
4
Pages
697-704
ISSN
1550-7289 (ISSN-L)
OpenAlex
W2076362540
Cited by
102
References
32
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 6 · 2022: 7 · 2021: 10 · 2020: 15 · 2019: 9 · 2018: 10 · 2017: 17 · 2016: 10 · 2015: 6 · 2014: 1
FWCI
11.23
Type
journal article
Language
en
Open access
Locations
  • Surgery for Obesity and Related Diseases (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (K23MH085732)
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
  • Health Sciences › Medicine › Surgery › Body Contouring and Surgery
Keywords
bariatric surgery, gastric bypass
MeSH terms
Aged, Decision Trees, Feeding Behavior, Female, Follow-Up Studies, Humans, Male, Middle Aged, Obesity, Morbid, Sensitivity and Specificity, Social Support, Time Factors, Gastric Bypass, Weight Loss, Exercise, Body Mass Index, Treatment Outcome

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