Reliability and validity of thai version ROME III questionnaire for children with functional gastrointestinal disorders.

Background: The ROME III diagnostic questionnaireforpediatric functional gastrointestinal disorders (FGIDs) is widely accepted as an essential tool for the diagnosis ofFGIDs in children and as a research tool. However, the questionnaire has not been translated into Thai.

Objective: To transpose the ROME III diagnostic questionnaire and to determine its validity and reliability in the Thai cultural setting.