Operationalizing Substantial Reduction in Functioning Among Young Adults with Chronic Fatigue Syndrome

Operationalizing Substantial Reduction in Functioning Among Young Adults with Chronic Fatigue... Purpose Chronic fatigue syndrome and myalgic encephalomyelitis are fatiguing illnesses that often result in long-term impair- ment in daily functioning. In reviewing case definitions, Thrope et al. (Fatigue 4(3):175–188, 2016) noted that the vast majority of case definitions used to describe these illnesses list a “substantial reduction” in activities as a required feature for diagnosis. However, there is no consensus on how to best operationalize the criterion of substantial reduction. Method The present study used a series of receiver operating curve (ROC) analyses to explore the use of the Medical Outcomes Study Short-Form-36 Health Survey (SF-36), designed by Ware and Shelbourne for operationalizing the substantial reduction criterion in a young adult population (18–29 years old). We compared the sensitivity and specificity of various cutoff scores for the SF-36 subscales and assessed their usefulness in discriminating between a group of young adults with a known diagnosis of chronic fatigue syndrome or myalgic encephalomyelitis (n = 98) versus those without that diagnosis (n =272). Results The four top performing subscales and their associated cutoffs were determined: Physical Functioning ≤ 80, General Health ≤ 47, Role Physical ≤ 25, and Social Functioning ≤ 50. Used in combination, these four cutoff scores were http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Behavioral Medicine Springer Journals

Operationalizing Substantial Reduction in Functioning Among Young Adults with Chronic Fatigue Syndrome

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Publisher
Springer Journals
Copyright
Copyright © 2018 by International Society of Behavioral Medicine
Subject
Medicine & Public Health; Medicine/Public Health, general; Health Psychology; General Practice / Family Medicine
ISSN
1070-5503
eISSN
1532-7558
D.O.I.
10.1007/s12529-018-9732-1
Publisher site
See Article on Publisher Site

Abstract

Purpose Chronic fatigue syndrome and myalgic encephalomyelitis are fatiguing illnesses that often result in long-term impair- ment in daily functioning. In reviewing case definitions, Thrope et al. (Fatigue 4(3):175–188, 2016) noted that the vast majority of case definitions used to describe these illnesses list a “substantial reduction” in activities as a required feature for diagnosis. However, there is no consensus on how to best operationalize the criterion of substantial reduction. Method The present study used a series of receiver operating curve (ROC) analyses to explore the use of the Medical Outcomes Study Short-Form-36 Health Survey (SF-36), designed by Ware and Shelbourne for operationalizing the substantial reduction criterion in a young adult population (18–29 years old). We compared the sensitivity and specificity of various cutoff scores for the SF-36 subscales and assessed their usefulness in discriminating between a group of young adults with a known diagnosis of chronic fatigue syndrome or myalgic encephalomyelitis (n = 98) versus those without that diagnosis (n =272). Results The four top performing subscales and their associated cutoffs were determined: Physical Functioning ≤ 80, General Health ≤ 47, Role Physical ≤ 25, and Social Functioning ≤ 50. Used in combination, these four cutoff scores were

Journal

International Journal of Behavioral MedicineSpringer Journals

Published: Jun 5, 2018

References

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