Table 2

Sensitivity and specificity of anti-CCP and RF for presence of rheumatoid arthritis (RA). CCP2 (n=249); RF (n=214)

Sensitivity (%)Specificity (%)PPVNPV
CCP66.090.482.979.0
RF71.680.376.875.2
CCP or RF81.479.578.382.4
CCP and RF56.991.185.369.9