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Validation of the German Inflammatory Bowel Disease Fatigue (IBD-F) Questionnaire
Karina Antonia Magdalena Scholz1, Anne Kerstin Thomann2, Niels Teich3
1Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Magdeburg, Magdeburg, Germany.
Zeitschrift Fur Gastroenterologie
|May 9, 2022
Summary
A new German version of the IBD Fatigue (IBD-F) scale effectively assesses fatigue in inflammatory bowel disease (IBD) patients. This validated tool demonstrates excellent reliability and validity for clinical use in German IBD populations.
Area of Science:
- Gastroenterology
- Clinical Psychology
- Health Measurement
Background:
- Fatigue is a prevalent and impactful symptom in inflammatory bowel diseases (IBD).
- Existing instruments for fatigue assessment lack German translations specific to IBD.
- A validated tool is needed to measure IBD-specific fatigue in the German-speaking population.
Purpose of the Study:
- To translate the IBD Fatigue (IBD-F) scale into German.
- To evaluate the psychometric properties of the translated IBD-F scale.
- To establish a reliable and valid measure for IBD-related fatigue in German patients.
Main Methods:
- Translation of the IBD-F scale followed by pilot testing with 20 IBD patients.
- Administration of the German IBD-F and IBDQ-D to 180 IBD patients with fatigue.
- Assessment of reliability using Cronbach's alpha, item-total correlations, and test-retest reliability (ICC).
- Exploratory factor analyses (EFA) and correlation analysis (Spearman's rho) between IBD-F and IBDQ-D.
Main Results:
- The German IBD-F demonstrated high face and content validity.
- Excellent internal consistency was observed (Cronbach's alpha: 0.93-0.98).
- Significant correlations were found between IBD-F sections and the IBDQ-D (Section I: rs=-0.59; Section II: rs=-0.76).
- Acceptable test-retest reliability was confirmed (Section I ICC=0.73; Section II ICC=0.84).
Conclusions:
- The German version of the IBD-F scale is a psychometrically sound instrument.
- The translated scale is a reliable and valid tool for assessing fatigue in German IBD patients.
- This tool will aid in better understanding and managing IBD-related fatigue.
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