Quality of life of Greek patients with inflammatory bowel disease. Validation of the Greek translation of the inflammatory bowel disease questionnaire

A G Pallis, I G Vlachonikolis, I A Mouzas
Digestion 2001, 63 (4): 240-6

BACKGROUND/AIMS: Health-related quality of life (HRQOL) is an important outcome measure in inflammatory bowel disease (IBD). The aim of our study is to validate the Greek translation of the Inflammatory Bowel Disease Questionnaire (IBDQ). For this we assessed its construct validity, discriminant ability, reliability and sensitivity to change.

METHODS: One hundred and fourteen patients with IBD (69 UC, 45 CD) completed the Greek version of the IBDQ, and a Visual Analogue Scale (VAS) for general well-being. Fifty-two patients also completed the SF-36. A subgroup of 46 patients completed the Greek IBDQ for a second time. Clinical activity was assessed by Harvey-Bradshaw Index and Colitis Activity Index.

RESULTS: Correlation coefficients between the four dimensional scores of the Greek IBDQ and the clinical activity indexes, VAS and the SF-36 were all reasonably high and statistically significant. The Greek IBDQ was able to discriminate well between groups of patients with either different clinical disease activity or subjective assessment of well-being. It also showed high reliability when it was repeated in patients who reported no change in their general well-being (intraclass correlation coefficient 0.940-0.998). In contrast, there was a significant difference between the baseline and the follow-up measurement in patients who reported change in their general well-being.

CONCLUSIONS: The Greek IBDQ proved to be a valid and reliable instrument for assessing HRQOL, useful in the evaluation of clinical trials or health surveys as well as in the therapeutic management of IBD patients.

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