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Application of the 2010 ACR/EULAR classification criteria for rheumatoid arthritis in Korean patients with undifferentiated arthritis.
MedLine Citation:
PMID:  22401568     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective: The aim of this study was to determine how many patients with undifferentiated arthritis (UA) are classified as patients with rheumatoid arthritis (RA) by the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) criteria for RA. Methods: The 2010 ACR/EULAR criteria for RA were applied to 102 patients with UA. UA is defined as an inflammatory arthritis that does not meet any criteria for a definitive diagnosis. We analysed discrepancy in the classification between previous criteria and the 2010 criteria by identifying patients who were categorized as those with RA. Results: The mean age of the patients was 46.8 ± 14.3 years. Rheumatoid factor (RF) was positive in 36 patients (35.2%), and 30 patients (29.5%) were positive for anti-cyclic citrullinated peptide antibody (anti-CCP). The 2010 ACR/EULAR criteria classified 33 patients (32.4%) as having RA, and 31 of them (93.9%) had the involvement of 1-3 small joints. All patients were seropositive, and 25 of them (75.8%) had high positive RF or anti-CCP. Seropositivity and small joint involvement was significantly different between patients who were classified with RA and those who were not (p < 0.001). Conclusion: Using the 2010 ACR/EULAR criteria, 32.4% of patients with UA were classified as having RA, and all were seropositive. Most of the UA patients with high positive RF or anti-CCP could be classified as having RA when we applied the 2010 ACR/EULAR criteria.
Authors:
Sj Jung; Y Kang; Yj Ha; Kh Lee; Sw Lee; S-K Lee; Y-B Park
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-9
Journal Detail:
Title:  Scandinavian journal of rheumatology     Volume:  -     ISSN:  1502-7732     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0321213     Medline TA:  Scand J Rheumatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Division of Rheumatology, Department of Internal Medicine, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine , Seoul , South Korea.
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