Study Design
This was a cross-sectional pilot study conducted at a single CF-center in the Netherlands. The medical ethics committee of Amsterdam University Medical Centers, the Netherlands, approved the study (METc_2021.0469). For this study, self-report questionnaires were completed by the participants and analyzed to asses GI symptoms (Dutch GI Symptom Tracker), anxiety (GAD-7), depression (PHQ-9) and HRQoL (CFQ-R).