The utility of patient-reported outcome measures among patients with myalgic encephalomyelitis/chronic fatigue syndrome
- 06-09-2016
Gepubliceerd in:
- Auteurs
- Kyle W. Murdock
- Xin Shelley Wang
- Qiuling Shi
- Charles S. Cleeland
- Christopher P. Fagundes
- Suzanne D. Vernon
- Gepubliceerd in
- Quality of Life Research | Uitgave 4/2017
Abstract
Purpose
Debilitating fatigue is a core symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS); however, the utility of patient-reported symptom outcome measures of fatigue for ME/CFS patients is problematic due to ceiling effects and issues with reliability and validity. We sought to evaluate the performance of three patient-reported symptom measures in a sample of ME/CFS patients and matched controls.
Methods
Two hundred and forty ME/CFS patients and 88 age, sex, race, and zip code matched controls participated in the study. Participants completed the Multidimensional Fatigue Inventory-20, DePaul Symptom Questionnaire, and RAND SF-36.
Results
The general and physical fatigue subscales on Multidimensional Fatigue Inventory-20, as well as the role of physical health on the RAND SF-36, demonstrated questionable or unacceptable internal consistency and problematic ceiling effects. The DePaul Symptom Questionnaire demonstrated excellent internal reliability, and less than 5 % of participants were at the ceiling on each subscale. The post-exertional malaise subscale on the DePaul Symptom Questionnaire demonstrated excellent clinical utility as it was able to differentiate between ME/CFS patients and controls (OR 1.23, p < .001) and predicted ceiling effects on other patient-reported outcome subscales. A score of 20 on the post-exertional malaise subscale of the DePaul Symptom Questionnaire optimally differentiated between patients and controls.
Conclusions
Significant ceiling effects and concerns with reliability and validity were observed among Multidimensional Fatigue Inventory-20 and RAND SF-36 subscales for ME/CFS patients. The DePaul Symptom Questionnaire addresses a number of concerns typically identified when using patient-reported outcome measures with ME/CFS patients; however, an improved multidimensional patient-reported outcome tool for measuring ME/CFS-related symptoms is warranted.
- Titel
- The utility of patient-reported outcome measures among patients with myalgic encephalomyelitis/chronic fatigue syndrome
- Auteurs
-
Kyle W. Murdock
Xin Shelley Wang
Qiuling Shi
Charles S. Cleeland
Christopher P. Fagundes
Suzanne D. Vernon
- Publicatiedatum
- 06-09-2016
- Uitgeverij
- Springer International Publishing
- Gepubliceerd in
-
Quality of Life Research / Uitgave 4/2017
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649 - DOI
- https://doi.org/10.1007/s11136-016-1406-3
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