2.1 Study Population
Teens between 13-18 years old who have been followed up at our center with a diagnosis of EoE since 2009 and their parents were included in the study. Diagnosis of EoE was made according to the guideline.1 All the forms used in the study were filled in by face to face interview with the patients and their parents at our center. The patients were seen twice one week apart. At the first visit, demographics were filled in and Turkish version of PEESS (Tr-PEESS) v2.0 and Tr-PedsQLTM 3.0 EoE Module forms were applied to patients and to their parents. In the second visit only Tr-PedsQLTM 3.0 EoE Module was applied for test-retest reliability.