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Objective

The EuroQol EQ-5D is a generic questionnaire for describing and valuing patients’ health-related quality of life. The purpose of the study was to analyse the construct validity, criterion validity, test–retest reliability and responsiveness of the EQ-5D in patients with inflammatory bowel disease.

Methods

152 consecutive patients with inflammatory bowel disease (123 with Crohn's disease and 29 with ulcerative colitis) completed the EQ-5D, the SF-36 and the Inflammatory Bowel Disease Questionnaire (IBDQ). Of the study group, 66 patients filled in the EQ-5D a second time after a 2-week gap, including a transition question. Disease activity was measured by the Crohn's Disease Activity Index (CDAI) and by Rachmilewitz's Clinical Activity Index (CAI).

Results

The EQ-5D showed a moderate ceiling effect. Correlation between the EQ-5D visual analogue scale (EQ VAS) score and CDAI/CAI was r s=− 0.65/r s=− 0 …