Factors Associated with Excess Skin After Bariatric Surgery: a Mixed-Method Study

Obesity surgery(2023)

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Abstract
Purpose After metabolic and bariatric surgery (MBS), many patients have excess skin (ES), which can cause inconveniences. Identifying factors related to ES quantity and inconveniences is crucial to inform interventions. The aim of this study was to identify sociodemographic, physical, psychosocial, and behavioral factors associated with ES quantity and inconveniences. Materials and Methods A mixed-method study with a sequential explanatory design was conducted with 124 adults (92% women, M age 46.5 ± 9.9 years, M time post-MBS 34.2 ± 27.6 months). During phase I, ES quantity (arms, abdomen, thighs) and inconveniences and sociodemographic, anthropometric, clinical, and behavioral outcomes were assessed. In phase II, 7 focus groups were performed with 37 participants from phase I. A triangulation protocol was completed to identify convergences, complementarities, and dissonances from quantitative and qualitative data. Results Quantitative data indicate only ES quantity on arms was associated with ES inconveniences on arms ( r = .36, p < .01). Total ES quantity was associated with maximal body mass index (BMI) reached pre-MBS ( r = .48, p < .05) and current BMI ( r = .35, p < .05). Greater ES inconvenience was associated with higher social physique anxiety and age ( R 2 = .50, p < .01). Qualitative data were summarized into 4 themes: psychosocial experiences living with ES, physical ailments due to ES, essential support and unmet needs, and beliefs of ES quantity causes. Conclusion Measured ES quantity is related to higher BMI, but not reported inconveniences. Greater self-reported ES quantity and inconveniences were associated with body image concerns. Graphical Abstract
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Key words
Excess skin,Bariatric surgery,Obesity,Mixed methods,Body image
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