Positive and negative predictors for body mass in adolescents who underwent bariatric and metabolic surgery
Abstract
Obesity is a chronic multifactorial disease whose clinical symptoms are related to several comorbidities. These are usually identified by measuring the patient’s Body Mass Index. In severe cases, bariatric surgery is an effective method of controlling weight and improving the patient’s metabolic profile, although the maintenance of these results depends on continuous medical monitoring. The purpose of this study was to evaluate the predictors of weight loss in adolescents who underwent bariatric surgery and were treated at the Gastro Obeso Center, in São Paulo, between 2008 and 2024, with the participation of 40 patients, the majority of whom were female (65%). They were evaluated by anthropometric and biochemical exams and the applied statistical analysis consisted of parametric and nonparametric tests, ANOVA of the repeated measurements, and multiple linear regression models. A varied weight loss was observed 12 months after the surgery, especially in the women: the average was reduced to 79,4 kg and the Body Mass Index was from 45,5 kg/m2 to 28,0 kg/m2. The metabolic parameters also improved, with a decrease in insulin resistance indicated by HOMA-IR. The main predictors of weight loss were the female gender, an initially larger body mass, and lower levels in the HOMA-IR. In contrast, the male gender and older age were associated with lower weight loss. Thus, this study reiterated the need to analyze the predictors, to optimize surgical results and improve the quality of life of these patients.
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