The study was aimed to test the original questionnaire for screening risk group of irritable bowel syndrome (IBS) occurrence among children. There was demonstrated that the highest prevalence of IBS was characteristic for 12–15 year old girls (up to 21.4% of the total amounts of the responders). The developed questionnaire has high sensitivity for detecting symptoms of IBS at the early stages and could be recommended for screening and for the wide use in the secondary schools.
