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The Inflammatory Bowel Disease-Disability Index: validation of the Portuguese version according to the COSMIN checklist.
- Source :
-
European journal of gastroenterology & hepatology [Eur J Gastroenterol Hepatol] 2016 Oct; Vol. 28 (10), pp. 1151-60. - Publication Year :
- 2016
-
Abstract
- Background and Aim: Recently, the Inflammatory Bowel Disease-Disability Index (IBD-DI) was developed to assess disability in inflammatory bowel disease (IBD). Our aim was to validate the Portuguese version of IBD-DI according to the COnsensus-based Standards for the selection of the health Measurement INstruments (COSMIN) recommendations.<br />Materials and Methods: After translation into Portuguese, the IBD-DI was administered by two interviewers to IBD patients at baseline and after 4 weeks and 4 months. We evaluated reliability (internal consistency, test-retest, and inter-rater reliability and measurement error), construct validity, responsiveness, and interpretability.<br />Results: At baseline, 129 patients (73=Crohn's disease; 56=ulcerative colitis) completed the IBD-DI. After 4 weeks and 4 months, 118 and 89 patients repeated the questionnaire, respectively. Factor analysis confirmed the unidimensionality of the scale and reduced the final version to 14 items. The Cronbach's α was 0.88. The intraclass correlation coefficients were 0.87 and 0.99 for test-retest (baseline and 4 weeks) and inter-rater reliability, respectively. The smallest detectable change was 18.64 at the individual level and 1.87 at the group level. IBD-DI scores correlated negatively with the total, physical, and mental scores of Short Form-36 items. The change score of IBD-DI between baseline and 4 months correlated negatively with the clinical evolution of patients. The minimal important change was 16.96. IBD-DI scores ranged from 0 to 78.6, with a mean of 21.8±18.1. Female sex, professional inactivity, and clinical disease activity were associated with higher IBD-DI scores.<br />Conclusion: The Portuguese version of IBD-DI obtained is a reliable, valid, responsive, and interpretable (at the group level) tool to assess disability in Portuguese IBD patients.
- Subjects :
- Adolescent
Adult
Aged
Area Under Curve
Checklist
Colitis, Ulcerative physiopathology
Colitis, Ulcerative psychology
Crohn Disease physiopathology
Crohn Disease psychology
Employment
Female
Health Status
Humans
Longitudinal Studies
Male
Mental Health
Middle Aged
Observer Variation
Portugal
Predictive Value of Tests
Prospective Studies
ROC Curve
Reproducibility of Results
Severity of Illness Index
Young Adult
Colitis, Ulcerative diagnosis
Crohn Disease diagnosis
Disability Evaluation
Surveys and Questionnaires
Subjects
Details
- Language :
- English
- ISSN :
- 1473-5687
- Volume :
- 28
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- European journal of gastroenterology & hepatology
- Publication Type :
- Academic Journal
- Accession number :
- 27472270
- Full Text :
- https://doi.org/10.1097/MEG.0000000000000701