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Self-Reported Weight-Loss Methods and Weight Change: Ten-Year Analysis in the Swedish Obese Subjects Study Control Group

Journal article
Authors Edit Zenténius
Johanna C. Andersson-Assarsson
Lena M S Carlsson
Per-Arne Svensson
Ingrid Larsson
Published in Obesity
Volume 26
Issue 7
Pages 1137-1143
ISSN 1930-7381
Publication year 2018
Published at Institute of Medicine, Department of Molecular and Clinical Medicine
Pages 1137-1143
Language en
Keywords life-style interventions, long-term persistence, bariatric surgery, loss, maintenance, physical-activity, control registry, management, health, adults, care, Endocrinology & Metabolism, Nutrition & Dietetics
Subject categories Family Medicine


ObjectiveThe Swedish Obese Subjects (SOS) study was designed to compare outcomes in patients with obesity treated by bariatric surgery and a matched control group given usual care. The aim of this study was to analyze self-reported weight-loss methods and weight changes over 10 years in the SOS control group. MethodsSelf-reported weight-loss methods in the control group (n=2,037; 71% women; 48.76.3 years; BMI 40.14.7 kg/m(2)) were analyzed at baseline and after 0.5, 1, 2, 3, 4, 6, 8, and 10 years of follow-up and studied in relation to weight changes. ResultsThe average 10-year weight change was +2.1% (95% CI: 1.4%-2.8%). At every follow-up, 82.7% (95% CI: 81.3%-84.1%) of participants reported weight-loss attempts. At 10 years, 12.5% of the participants had10% weight loss and 22.3% had10% weight gain. Participants who lost or gained weight reported similar usage of weight-loss methods. ConclusionsOver 10 years, the majority of the participants of the SOS control group reported continuous efforts to lose weight. These results illustrate the constant struggle individuals with severe obesity are facing and that, on average, the results of long-term weight loss and weight maintenance were discouraging.

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