Adaptação transcultural do questionário “Self-Report Form for Children and Adolescents (10 years of age and older)” para transtornos da interação intestino-cérebro em adolescentes brasileiros

Abstract

Introduction: Disorders of gut-brain interaction (DGBIs) include a variety of recurrent gastrointestinal symptoms, not associated with structural or biochemical abnormalities that make their diagnosis difficult. They are evaluated based on clinical criteria defined by the Rome Foundation, which also develops diagnostic questionnaires. It is essential that they are validated and adapted for use in the target population. Objective: Perform the translation and cross-cultural adaptation of the questionnaires developed by the Roma Foundation for the diagnosis of DGBIs in children 4 years of age and older. Methods: The cross-cultural adaptation protocol followed theoretical references and guidelines from the Rome Foundation, with the following steps.: (i) Preparation; (ii) Forward Translation; (iii) Reconciliation; (iv) Backward translation; (v) Review of the backward translation; (vi) Cognitive debriefing; (vii) Calculation of the Item Content Validity Index; (viii) Final review and (ix) Approval by the Rome Foundation. Results: During the translation stage, priority was given to a version that would be easily understood by people from different parts of the country and social backgrounds, and that encompassed the largest number of regional expressions. In the backward translation, 85% of the items remained unchanged or had minor alterations, indicating adequate equivalence. The cognitive debriefing showed understanding above 90% in the first stage, demonstrating that the questionnaire is clear and easy to answer. After the evaluation of the 5 judges, the content validity index resulted in a value of 0.99, indicating the reliability of the cross-cultural adaptation and suitability of the questionnaire. Conclusions: The cross-cultural adaptation to Brazilian Portuguese of the diagnostic questionnaire for DGBIs in children over 4 years old was successful and officially approved by the Rome Foundation, enabling its use in local and global epidemiological studies.