Table 1 Descriptive data for the pre-symptomatic individuals, patients with rheumatoid arthritis (RA) and the controls
Pre-symptomatic individuals (n = 521) | Patients with RA (n = 241) | Controls (n = 272) | |
|---|---|---|---|
Female sex, n (%) | 371 (71.2) | 167 (69.3) | 167 (61.4) |
Age, mean (SD)a, years | 52.4 (9.4) | 60.1 (9.7) | 51.8 (9.5) |
Ever-smoker, n (%) | 327/520 (62.9) | 162/240 (67.5) | 110/266 (41.4) |
HLA-SE carrierb, n (%) | 249/392 (63.5) | 147/218 (67.4) | - |
PTPN22 1858 T-variant carriage, n (%) | 92/262 (35.1) | 56/192 (29.2) | - |
Anti-CCP2 antibody, n (%) | 190/518 (36.7) | 189/241 (78.4) | 7/272 (2.6) |