Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran.
Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Obes Facts. 2023;16(1):62-68. doi: 10.1159/000527721. Epub 2022 Oct 25.
It could be valuable for surgeons and patients to use one chart in different groups and evaluate weight loss during the post-surgery period.
This retrospective study used the Iran National Obesity Surgery Database. Patients with clinically severe obesity aged 18-70 undergoing sleeve gastrectomy participated in this study. Body mass index (BMI) reduction and 5 other metrics measured over the study period were modeled using lambda-mu-sigma method. Our data were split into the train (70%) and test (30%) sets.
In this study, 1,258 patients (75% female) met the eligibility criteria to participate. Mean age and initial BMI were 36.87 ± 10.51 and 42.74 (40.37-46.36), respectively. Percentile charts for various metrics have been presented for the first 2 years after surgery.
For sleeve surgery, all metrics are acceptable for clinical applications. Using the statistical view, BMI reduction is the most acceptable metric according to the lowest bias values and its variation between all the metrics.
对于外科医生和患者来说，在不同组别中使用同一张图表并评估术后期间的体重减轻情况可能是有价值的。
本回顾性研究使用了伊朗国家肥胖症手术数据库。本研究纳入了年龄在 18-70 岁、患有临床严重肥胖症且接受袖状胃切除术的患者。使用 lambda-mu-sigma 方法对研究期间的体重指数（BMI）降低和其他 5 项指标进行建模。我们的数据被分为训练集（70%）和测试集（30%）。
本研究共有 1258 名（75%为女性）符合参与标准的患者。平均年龄和初始 BMI 分别为 36.87±10.51 和 42.74（40.37-46.36）。术后前 2 年已为各种指标呈现了百分位图表。
对于袖状手术，所有指标都可用于临床应用。根据最低偏差值及其在所有指标之间的变化，BMI 降低是最可接受的指标。
