Association Between Changes in Control of Eating and Sleeve Gastrectomy Outcomes at One Year

Background: Weight loss response to sleeve gastrectomy is variable; hence, predicting the effectiveness of surgery is challenging and elusive. Our study aimed to assess and quantify the association between changes in control of eating and weight loss outcomes one year after surgery. Methods: A prospective longitudinal cohort study using the Control of Eating Questionnaire (CoEQ), a visual analogue scale, was designed as a series before and at 3, 6, and 12 months post-surgery. Primary outcomes were changes in selected control of eating attributes, and percent of total weight loss (%TWL) 12 months post-surgery, with % TWL >25% set as a successful weight loss target. Sex, smoking and weight status were assessed for covariance. Differences in CoEQ scores and weight status were analyzed using a two-sided t-test, Mann-Whitney and Wilcoxon signed-rank tests. Univariate and multivariate logistic regression was used to determine the association of control of eating attributes and potential contributing factors with weight loss outcomes. Results: Forty-one patients (80.5% females, 51.2% Hispanic, mean age 41.7±10.6, median baseline BMI 43.6 kg/m2 [range 35.2-66.3]) who completed CoEQ at all four timepoints were included. Patients with %TWL ≥25% did not differ substantially from those with %TWL