Fig. 1

Flow chart of the VALIDate study. Patients will be recruited consecutively in the three outpatient departments of the hospitals of Nantes, Rennes and Angers. If they meet the inclusion criteria, patient information will be given orally and in writing, then the physician will collect patient’s oral non-opposition. Both IBD-Disability Index and IBD Disk questionnaires will be filled by all included patients at baseline visit, then between 3 and 12 months after baseline, during a routine follow-up visit. Patients will also respond to a socio-demographical questionnaire during both visits