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Identification of ambiguities in the 1994 chronic fatigue syndrome research case definition and recommendations for resolution

BMC Health Services Research · 2003 · Vol. 3(1) · pp. 25–25

William C. Reeves✉(Centers for Disease Control and Prevention)Andrew R. Lloyd(UNSW Sydney)Suzanne D. Vernon(Centers for Disease Control and Prevention)Nancy G. Klimas(University of Miami)Leonard A. Jason(DePaul University)Gijs Bleijenberg(Radboud University Medical Center)Birgitta Evengård(Karolinska Institutet)Peter D. WhiteRosane Nisenbaum(Centers for Disease Control and Prevention)Elizabeth R. Unger(Centers for Disease Control and Prevention)the International Chronic Fatigue Syndrome Study Group

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Abstract

This paper provides an approach to guide systematic, and hopefully reproducible, application of the current case definition, so that case ascertainment would be more uniform across sites. Ultimately, an operational CFS case definition will need to be based on empirical studies designed to delineate the possibly distinct biological pathways that result in chronic fatigue.

Fibromyalgia and Chronic Fatigue Syndrome Research Musculoskeletal pain and rehabilitation Health, psychology, and well-beingMedicineNursing researchIdentification (biology)Chronic fatigue syndromeFocus groupStandardizationBrainstormingApplied psychologyPsychologyPhysical therapy

MeSH terms

CognitionDisability EvaluationHumansPainPsychiatric Status Rating ScalesMeta-Analysis as TopicFatigue Syndrome, ChronicComorbidityFocus GroupsSickness Impact ProfileDyssomniasUncertainty

Citations

485

FWCI

10.09

field-weighted impact

References

Percentile

99%

vs. same field & year

Citations per year

References

The Sickness Impact Profile: Development and Final Revision of a Health Status Measure