Validity of the Czech, German, Italian, and Spanish version of the Moorehead-Ardelt II questionnaire in patients with morbid obesity.

Background: The Moorehead-Ardelt II (MA-II) questionnaire is the most frequently applied instrument to assess quality of life (QoL) in bariatric surgery patients. Our aim was to validate the Czech, German, Italian, and Spanish version of the MA-II.

Methods: A total of 893 patients were enroled in a prospective cross-sectional European study.