Table 3.

Logistic regression in the group that was not better explained by another diagnosis and without erosion typical for RA.

CriteriaExp ß (95% CI)p
Symmetric arthritis (ACR criteria 4)2.96 (1.19–7.37)0.02
Rheumatoid factor (positive or negative)3.23 (1.27–8.22)0.014
Cyclic citrullinated peptide (negative, low, high)2.90 (1.6–5.23)< 0.0001
ESR or CRP2.67 (1.01–7.05)0.03
Joint (0 to 5 points)1.33 (1.02–1.73)0.032
  • ESR: erythrocyte sedimentation rate; CRP: C-reactive protein.