Background Chronic fatigue syndrome (CFS) is defined by symptoms and disability, has no
confirmatory physical signs or characteristic laboratory abnormalities, and the etiology and …

Rationale, aims and objectives The research community has for more than three decades
tried to unravel the diagnostic mystery that is Chronic Fatigue Syndrome (CFS). This has …

Background The lack of standardized criteria for defining chronic fatigue syndrome (CFS)
has constrained research. The objective of this study was to apply the 1994 CFS criteria by …

Because the pathogenesis of Chronic Fatigue Syndrome (CFS) has yet to be determined,
case definitions have relied on clinical observation in classifying signs and symptoms for …

Objectives Validated or standardized self-report questionnaires used in research studies
and clinical evaluation of chronic fatigue syndrome (CFS) generally focus on the …

De Becker P, McGregor N, De Meirleir K (VUB, Vakgroep Interne Geneeskunde, Brussels,
Belgium; and University of Newcastle, Callaghan, New South Wales, Australia). A definition …

Because estimates of the prevalence of Chronic Fatigue Syndrome (CFS) have been quite
variable, there is a need for a screening instrument and second stage medical assessment …

The Centers for Disease Control and Prevention (CDC) recently developed an empirical
case definition that specifies criteria and instruments to diagnose chronic fatigue syndrome …

Few studies have explored issues of sensitivity and specificity for using the fatigue construct
to identify patients meeting chronic fatigue syndrome (CFS) criteria. In this article, we …

To determine whether patients diagnosed as having chronic fatigue syndrome (CFS)
constitute a clinically homogeneous class, multivariate statistical analyses were used to …