Table 3

Comparison of anti-CCP and RF reactivity

Patients with RA No (%)Other patients No (%)
*RF analysis performed on 214 of 249 samples.
CCP (+)(n=68)(n=14)
    RF +58 (85)10/11* (91)
    RF −10 (15)1/11* (9)
CCP (−)(n=35)(n=132)
    RF +15/34* (44)12/101* (12)
    RF −19/34* (56)89/101* (88)