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Table 3 Distribution of anti-CCP- and IgM RF positive patients with/without persistent arthritis

From: The likelihood of persistent arthritis increases with the level of anti-citrullinated peptide antibody and immunoglobulin M rheumatoid factor: a longitudinal study of 376 patients with very early undifferentiated arthritis

  Persistent arthritis Self-limiting disease Total
Anti-CCP positive only 15 6 21
Anti-CCP and IgM RF positive 37 4 41
IgM RF positive only 12 6 18
No antibody positivity 110 186 296
Total 174 202 376