Cited by 83Bariatric Surgery and OutcomesEating Disorders and BehaviorsNutrition, Health and Food Behavior

Psychological aspects of eating behavior as predictors of 10-y weight changes after surgical and conventional treatment of severe obesity: results from the Swedish Obese Subjects intervention study

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Konttinen, Hanna, Peltonen, Markku, Sjöström, Lars, Carlsson, Lena, Karlsson, Jan·2015·The American Journal of Clinical Nutrition

Abstract

Background There is a need for a better understanding of the factors that influence long-term weight outcomes after bariatric surgery.Objective We examined whether pretreatment and posttreatment levels of cognitive restraint, disinhibition, and hunger and 1-y changes in these eating behaviors predict short- and long-term weight changes after surgical and conventional treatments of severe obesity.Design Participants were from an ongoing, matched (nonrandomized) prospective intervention trial of the Swedish Obese Subjects (SOS) study. The current analyses included 2010 obese subjects who underwent bariatric surgery and 1916 contemporaneously matched obese controls who received conventional treatment. Physical measurements (e.g., weight and height) and questionnaires (e.g., Three-Factor Eating Questionnaire) were completed before the intervention and 0.5, 1, 2, 3, 4, 6, 8, and 10 y after the start of the treatment. Structural equation modeling was used as the main analytic strategy.Results The surgery group lost more weight and reported greater decreases in disinhibition and hunger at 1- and 10-y follow-ups (all P < 0.001 in both sexes) than the control group did. Pretreatment eating behaviors were unrelated to subsequent weight changes in surgically treated patients. However, patients who had lower levels of 6-mo and 1-y disinhibition and hunger (β = 0.13-0.29, P < 0.01 in men; β = 0.11-0.28, P < 0.001 in women) and experienced larger 1-y decreases in these behaviors (β = 0.31-0.48, P < 0.001 in men; β = 0.24-0.51, P < 0.001 in women) lost more weight 2, 6, and 10 y after surgery. In control patients, larger 1-y increases in cognitive restraint predicted a greater 2-y weight loss in both sexes.Conclusion A higher tendency to eat in response to various internal and external cues shortly after surgery predicted less-successful short- and long-term weight outcomes, making postoperative susceptibility for uncontrolled eating an important indicator of targeted interventions.

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Authors
Konttinen, H., Peltonen, M., Sjöström, L., Carlsson, L., & Karlsson, J.
Affiliations
University of Helsinki (FI)
Corresponding author
Konttinen, Hanna
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
2015-01
Volume
101
Issue
1
Pages
16-24
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2026448252
Cited by
83
References
52
Citations by year
2026: 2 · 2025: 5 · 2024: 5 · 2023: 6 · 2022: 7 · 2021: 11 · 2020: 8 · 2019: 7 · 2018: 12 · 2017: 8 · 2016: 3 · 2015: 8
FWCI
6.28
Type
journal article
Language
en
Open access
Locations
  • American Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • STM:n Hallinnonalan avoin julkaisuarkisto (Julkari) (submittedVersion)
Funders
  • Academy of Finland (265796)
  • Swedish Research Council (K2012-55X-22082-01, K2013-54X-11285-19, K2013-99X-22279-01)
  • Swedish Foundation for Strategic Research
Topics
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
Keywords
dietary habits, bariatric surgery, morbid obesity, weight loss, cognitive restraint, disinhibition, hunger, Three-Factor Eating Questionnaire, Swedish Obese Subjects study, predictors of weight change
MeSH terms
Adult, Combined Modality Therapy, Cross-Sectional Studies, Feeding Behavior, Female, Humans, Hunger, Hyperphagia, Inhibition, Psychological, Longitudinal Studies, Male, Middle Aged, Models, Psychological, Obesity, Obesity, Morbid, Patient Education as Topic, Sweden, Weight Loss, Body Mass Index, Matched-Pair Analysis, Bariatric Surgery, Nutritional Sciences

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