title: Assessment of 2012 EULAR/ACR new classification criteria for polymyalgia rheumatica in Japanese patients diagnosed using Bird's criteria.
abstract: OBJECTIVE
  The 2012 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) classification criteria for polymyalgia rheumatica (PMR) were published in 2012. The present study aimed to assess the 2012 EULAR/ACR classification criteria for PMR in Japanese patients diagnosed with PMR using Bird's criteria.
  
  
  METHODS
  The study included 75 patients diagnosed using Bird's criteria. The patients were divided into fulfilled and not-fulfilled groups according to whether they met the 2012 EULAR/ACR classification criteria for PMR. The factors in the new criteria were morning stiffness duration > 45 min, hip pain or limited range of motion, absence of rheumatoid factor or anti-citrullinated protein antibody, and absence of other joint involvement.
  
  
  RESULTS
  Thirty-two of the patients diagnosed with PMR using Bird's criteria met the new EULAR/ACR classification criteria, while the remaining 43 patients did not meet the new criteria. Among the factors, only morning stiffness duration > 45 min was an independent predictive factor.
  
  
  CONCLUSIONS
  A morning stiffness duration > 45 min is the only independent predictive factor for differentiating patients diagnosed according to the new 2012 EULAR/ACR classification criteria for PMR.
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Matsui
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Momo
authors.initials: M
authors.lastname: Maruoka
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yoshikawa
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.|Hashimoto Clinic for Rheumatic Diseases, Osaka, Japan.
authors.forename: Naoaki
authors.initials: N
authors.lastname: Hashimoto
authors.affiliation: Okabe Clinic for General Medicine, Zentsuji, Kagawa, Japan.
authors.forename: Mika
authors.initials: M
authors.lastname: Nogami
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Sekiguchi
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Naoto
authors.initials: N
authors.lastname: Azuma
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Masayasu
authors.initials: M
authors.lastname: Kitano
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Tsunoda
authors.affiliation: Division of Rheumatology Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Sano
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000075422:Anti-Citrullinated Protein Antibodies / Q000097:blood; D015415:Biomarkers / Q000097:blood; D001696:Biomechanical Phenomena; D003661:Decision Support Techniques; D005260:Female; D006304:Health Status; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D011111:Polymyalgia Rheumatica / Q000097:blood / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology; D011237:Predictive Value of Tests; D016059:Range of Motion, Articular; D012189:Retrospective Studies; D012217:Rheumatoid Factor / Q000097:blood; D012219:Rheumatology / Q000379:methods*; D013997:Time Factors
chemical_list: D000075422:Anti-Citrullinated Protein Antibodies; D015415:Biomarkers; D012217:Rheumatoid Factor
keywords: 
  PMR
  ; 2012 EULAR/ACR criteria; Bird's criteria; Japanese