Psychological predictors of weight loss after bariatric surgery: A review of the recent research
Abstract
Background Morbid obesity is the fastest growing BMI group in the U.S. and the prevalence of morbid obesity worldwide has never been higher. Bariatric surgery is the most effective treatment for severe forms of obesity especially with regard to a sustained long-term weight loss. Psychological factors are thought to play an important role for maintaining the surgical weight loss. However, results from prior research examining preoperative psychological predictors of weight loss outcome are inconsistent. The aim of this article was to review more recent literature on psychological predictors of surgical weight loss.Methods We searched PubMed, PsycInfo and Web of Science, for original prospective studies with a sample size >30 and at least one year follow-up, using a combination of search terms such as 'bariatric surgery', 'morbid obesity', 'psychological predictors', and 'weight loss'. Only studies published after 2003 were included.Results 19 eligible studies were identified. Psychological predictors of surgical weight loss investigated in the reviewed studies include cognitive function, personality, psychiatric disorder, and eating behaviour.Conclusion In general, recent research remains inconsistent, but the findings suggest that pre-surgical cognitive function, personality, mental health, composite psychological variables and binge eating may predict post-surgical weight loss to the extent that these factors influence post-operative eating behaviour.
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Numerous reviews have examined psychological predictors of weight loss outcomes following bariatric surgery.
“Numerous reviews have examined psychological predictors of weight loss outcomes following bariatric surgery, which include (but are not limited to) depressive disorders, substance misuse, and disordered eating 3 , 6 , 7 , 8”
From Psychological predictors of adherence to lifestyle changes after bariatric surgery: A systematic review (2024) · cites this paper as [7]
There has been less focus on predictors of adherence to post-operative instructions regarding lifestyle changes than on psychological predictors of weight loss outcomes.
“but there has been less of focus on predictors of adherence to post‐operative instructions regarding lifestyle changes.”
From Psychological predictors of adherence to lifestyle changes after bariatric surgery: A systematic review (2024) · cites this paper as [7]
Preoperative psychiatric disorder was a weaker predictor of weight regain than postoperative psychiatric disorder, likely due to the impact of the latter on eating behavior after bariatric surgery.
“preoperative psychiatric disorder was a weaker predictor of WR than the postoperative psychiatric disorder, likely due to the impact of the latter on eating behavior after BS [85].”
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- Authors
- Wimmelmann, C. L., Dela, F., & Mortensen, E. L.
- Affiliations
- University of Copenhagen (DK)
- Corresponding author
- Wimmelmann, Cathrine L.
- Venue
- Obesity Research & Clinical Practice
- Publisher
- Elsevier BV
- Published
- 2014-07
- Volume
- 8
- Issue
- 4
- Pages
- e299-e313
- ISSN
- 1871-403X (ISSN-L)
- OpenAlex
- W2133059200
- Cited by
- 151
- References
- 103
- Citations by year
- 2026: 5 · 2025: 11 · 2024: 12 · 2023: 8 · 2022: 7 · 2021: 6 · 2020: 21 · 2019: 15 · 2018: 15 · 2017: 24 · 2016: 10 · 2015: 13 · 2014: 4
- FWCI
- 1.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Obesity Research & Clinical Practice (publishedVersion)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- 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, morbid obesity, weight loss, psychological predictors, cognitive function, personality, mental illness, eating behaviour, binge eating, preoperative psychological assessment, long-term weight maintenance
- MeSH terms
- Cognition, Demography, Feeding Behavior, Humans, Obesity, Morbid, Personality Disorders, Predictive Value of Tests, United States, Weight Loss, Body Mass Index, Prevalence, Treatment Outcome, Bariatric Surgery, Binge-Eating Disorder
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
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