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Table 1

From: Clinical sensitivity of antibodies against cyclic citrulinated peptide in patients with rheumatoid arthritis

Anti-CCP (U)

<50 (neg)

50-200

201-800

801-3200

>3200

RF pos (n = 31)

7 (23%)

4 (13%)

6 (19%)

5 (16%)

9 (29%)

RF neg (n = 38)

23 (60%)

6 (16%)

3 (8%)

4 (11%)

2 (5%)