Table 1.

Descriptive data for 407 patients with early rheumatoid arthritis and for 71 controls, at the time of inclusion into the study and during follow-up until 24 months

Variables	RA patients (N = 407)	Controls (N = 71)
Age (mean) ± SD, years	53.8 ± 14.5	54.9 ± 14.5
Female, n (%)	281/407 (69)	58/71 (81.7)
HLA-SE, n (%)	242/404 (59.9)*	30/67 (44.8)
PTPN22 1858T carriage (%)	137/402 (34.1)	18/52 (25.7)
RF+, n (%)	327/407 (80.3)	–
Anti-CCP2 abs+, n (%)	305/407 (74.9)***	1/71 (1.4)

HLA-SE HLA shared epitope = 0101/0401/0404/0405/0408, RF rheumatoid factor, Anti-CCP2 abs anti-CCP2 antibodies

* p < 0.05, ***p < 0.001