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Table 1 The distribution of anticentromere antibody-positive patients according to anti-cyclic citrullinated peptide results

From: The influence of anti-cyclic citrullinated peptide on anticentromere antibody-positive rheumatoid arthritis patients

  Anticentromere antibody-positive (n= 81)a  
  Anti-CCP positive (n= 29)b Anti-CCP negative (n= 52) P-valuec
RA 24 10 < 0.05
   with Raynaud 0/24 1/10 0.116
   with sicca 2/24 0/10 0.347
   with IPD 3/24 1/10 0.837
Other diseasesd 5 42  
  1. aAnticentromere detected by autoimmune target (AIT) test (ImmunoThink Co., Seoul, Republic of Korea). bAnti-CCP detected by second generation ELISA (Axis-Shield, Dundee Scotland/Immco Diagnostics, Buffalo, USA). cChi-square test (P < 0.05). dOther diseases include systemic sclerosis, systemic lupus erythematosus, Raynaud's phenomenon, Sjögren's syndrome, unspecified rheumatism and osteoarthritis. CCP, cyclic citrullinated peptide; IPD, interstitial pulmonary disease; RA, rheumatoid arthritis.