title: Chronic fatigue syndrome versus sudden onset myalgic encephalomyelitis.
abstract: A revised sudden onset case definition for Myalgic Encephalomyelitis (ME) has been developed (Jason, Damrongvachiraphan, et al., 2012 ) based on past case definitions. In a prior study, Jason, Brown, and colleagues ( 2012 ) compared patients recruited using the 1994 case definition of chronic fatigue syndrome (CFS) to contrast those meeting criteria for the revised ME criteria. They found that this revised ME case definition identified patients with more functional impairments and physical, mental, and cognitive problems than those meeting the CFS criteria. The study by Jason, Brown, et al. ( 2012 ) only selected individuals who first met the CFS criteria, and it only relied on one Chicago-based data set. The current study replicated this comparison with two distinct data sets with different case ascertainment methods. Results indicate that the ME criteria identified a group of patients with more functional disabilities as well as more severe post-exertional malaise symptoms.
authors.affiliation: a Center for Community Research, DePaul University , Chicago , Illinois , USA.
authors.forename: Leonard A
authors.initials: LA
authors.lastname: Jason
authors.forename: Meredyth
authors.initials: M
authors.lastname: Evans
authors.forename: Abigail
authors.initials: A
authors.lastname: Brown
authors.forename: Madison
authors.initials: M
authors.lastname: Sunnquist
authors.forename: Julia L
authors.initials: JL
authors.lastname: Newton
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003072:Cognition Disorders / Q000503:physiopathology; D003937:Diagnosis, Differential; D004185:Disability Evaluation; D015673:Fatigue Syndrome, Chronic / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology*; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D057566:Self Report; D012959:Socioeconomic Factors; D055815:Young Adult
keywords: Chronic Fatigue Syndrome; Myalgic Encephalomyelitis; Sudden Onset