Table 4

 Prognostic value of autoantibodies for development of erosive disease in patients with RA. Anti-CCP and anti-RA33 in the subgroup of patients with negative or low titre RF (<50 U/ml)

AntibodiesErosiveNon-erosive
(n = 15)(n = 24)
Anti-CCP (n)72
Anti-RA33 (n)36
Both (n)10