An observational study in Bariatric Surgery, Sleeve Gastrectomy and Weight Loss, sponsored by China-Japan Friendship Hospital. Completed at 1 site in China. Open to participants aged 16 Years to 70 Years. Per ClinicalTrials.gov, last updated 2025-07-08.
Sponsored by China-Japan Friendship Hospital · Observational
This study aims to develop and validate a prediction model for estimating the probability of inadequate weight loss one year after sleeve gastrectomy.
Inadequate weight loss (IWL) is a major problem after sleeve gastrectomy, leading to the recurrence of obesity-related comorbidities and increased risk of revision surgery. It is important to identify the high-risk individuals for IWL before surgery so that clinicians can initiate more rigorous weight monitoring and management strategies. Therefore, this study aims to develop a prediction model using preoperative clinical and laboratory data to estimate the risk of IWL one year after sleeve gastrectomy, and then validate it using two separate datasets.
1,766 studies on the registry are indexed under Weight Loss; 277 are open to participants now.
This study's enrollment of 1,000 is above the median of 92 across 219 observational studies indexed under Weight Loss.
Browse Weight Loss studies →China-Japan Friendship Hospital is the lead sponsor of 173 studies on the registry; 109 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The population included patients with obesity who received sleeve gastrectomy between September 2017 and September 2024. All patients were followed up for at least 1 year.
Exclusion Criteria:
Area under receiver operating characteristic curve (AUC) of the prediction model
AUC reflects the discriminatory ability of the model, which was measured in this study.
Time frame: 1 year
Brier score of the prediction model
Brier score reflects the calibration of the model, which was measured in this study.
Time frame: 1 year
This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.
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China-Japan Friendship Hospital