title: [Definition, classification and diagnosis of fibromyalgia syndrome].
abstract: BACKGROUND
  Interdisciplinary guidelines for the definition, classification and diagnosis of chronic widespread pain (CWP) and fibromyalgia syndrome (FMS) were developed by collaboration of 10 German medical and psychological associations and 2 patient self-help organizations.
  
  
  METHODS
  A systematic literature search was performed in the Cochrane Library (1993-12/2006), Medline (1980-2006), PsychInfo (1966-12/2006), and Scopus (1980-12/2006). Levels of evidence were assigned according to the classification system of the Oxford Centre for Evidence-Based Medicine. Grading of the strength of recommendation was done according to the German program for disease management guidelines. Standardized procedures to reach a consensus on recommendations were used.
  
  
  RESULTS
  CWP is defined by the criteria of the American College of Rheumatology (ACR--strong consensus). FMS can be diagnosed for clinical purposes by symptom-based criteria (without tender point examination) as well as by the ACR criteria (strong consensus).
authors.affiliation: Abteilung Innere Medizin II (Allgemeine Klinische und Psychosomatische Medizin), Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69210, Heidelberg. wolfgang.eich@med.uni-heidelberg.de
authors.forename: W
authors.initials: W
authors.lastname: Eich
authors.forename: W
authors.initials: W
authors.lastname: Häuser
authors.forename: E
authors.initials: E
authors.lastname: Friedel
authors.forename: A
authors.initials: A
authors.lastname: Klement
authors.forename: M
authors.initials: M
authors.lastname: Herrmann
authors.forename: F
authors.initials: F
authors.lastname: Petzke
authors.forename: M
authors.initials: M
authors.lastname: Offenbächer
authors.forename: M
authors.initials: M
authors.lastname: Schiltenwolf
authors.forename: C
authors.initials: C
authors.lastname: Sommer
authors.forename: T
authors.initials: T
authors.lastname: Tölle
authors.forename: P
authors.initials: P
authors.lastname: Henningsen
mesh_terms: D000465:Algorithms; D019317:Evidence-Based Medicine / Q000592:standards; D005356:Fibromyalgia / Q000145:classification / Q000175:diagnosis*; D005858:Germany; D006801:Humans; D033183:Interdisciplinary Communication; D010348:Patient Care Team; D011785:Quality Assurance, Health Care / Q000592:standards