Table 1

Correlations between autoantibody levels and markers of inflammation

Erythrocyte sedimentation rate

C-reactive protein



Diagnosis group

ACPA

IgM-RF

ACPA

IgM-RF


RA (n = 1,130)

0.16a

0.31a

0.13a

0.28a

Non-RA (n = 1,190)

0.07b

0.06

0.02

0.06


aP < 0.01; bP < 0.05. ACPA, antibody to citrullinated proteins/peptides; IgM-RF, IgM rheumatoid factor; RA, rheumatoid arthritis.

Ursum et al. Arthritis Research & Therapy 2009 11:R75   doi:10.1186/ar2704

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