Validation of the suter questionnaire after laparoscopic sleeve gastrectomy in the Greek population

Abstract

Background & aims: The purpose of this study was to validate the Greek version of Suter questionnaire in order to be used for the evaluation of patients after Laparoscopic Sleeve Gastrectomy (LSG). Methods: A total of 170 patients were enrolled in the study. Results: The correlation coefficients for criterion validity had range between 0.202 (Food Tolerance) and 0.252 (Suter Total Score) (p < 0.05).There was moderate correlation between the questionnaire's subscales and the Hematocrit which satisfied the criterion validity marginally. The internal consistency measured with Cronbach's alpha yielded a value of 0.866 for the factor tolerance and 0.78 for the factor symptoms, which indicate excellent internal consistency. Excellent test-retest reliability with ICC of 0.997 for food tolerance and 0.990 for symptoms were also observed. The Suter questionnaire demonstrated a high sensitivity to detect clinical changes. Conclusion: The Greek version of Suter questionnaire seemed to be valid and reliable to assess morbidly obese patients after LSG. © 2018