ArticleInternational journal of obesity (2005)2023
Study on weight loss outcomes after bariatric surgery to determine a metric least influenced by preoperative BMI.
Article in International journal of obesity (2005), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Incidence and Predictors of Suboptimal Early Weight Loss after Bariatric Procedures.Obesity surgery · 2026Article
- Changes in the Protein Profile of Saliva from People with Obesity Treated with Bariatric Surgery and Physical Exercise.International journal of molecular sciences · 2025Article
- Body roundness index trajectories in Chinese bariatric surgery patients: a retrospective longitudinal study.Lipids in health and disease · 2025Article
- The Relationship between Depressive Symptoms, Quality of Life and miRNAs 8 Years after Bariatric Surgery.Nutrients · 2023Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPercentage excess weight loss (%EWL) and percentage total weight loss (%TWL) are used for reporting outcomes after bariatric surgery. However, they are not ideal for comparing outcomes on populations of varied initial body mass index (BMI). This study aimed to validate a recently introduced metric - percentage alterable weight loss (%AWL), after laparoscopic sleeve gastrectomy (LSG) and Roux-en-Y gastric bypass (LRYGB).
methodsAnalysis of weight data of all patients who had undergone LSG and LRYGB until the end of the year 2021. Outcomes for both procedures were analyzed separately. The patients were divided into quartile subgroups Q1 (lowest BMI) to Q4 (highest BMI) and weight loss up to 5 years postoperatively was compared using %EWL, %TWL and %AWL metrics. An intermediary metric was also tested for its effect on the weight loss patterns for both procedures.
resultsThe cohort included 1020 LSG and 322 LRYGB patients, with initial mean BMI of 43.5 ± 7.5 and 41.9 ± 8.3 kg/m
conclusions%TWL is least influenced by initial BMI during short-term follow-up after LSG and LRYGB. For medium-term comparison, %AWL is best suited for LRYGB while an intermediary metric is found to provide the best fit for LSG.
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