Table 1 Demographic data for 252 individuals with 423 samples at a median (IQR) of 5.2 (6.3) years before the onset of symptoms of RA, patients with RA, and controls
Controls (number = 197) | Pre-symptomatic individuals (number = 252) | RA-patients (number = 192) | |
|---|---|---|---|
Female sex, % | 84.3 | 77 | 75 |
Median age, years (IQR) | 50.1 (20.2) | 52 (17.4)a | 57.5 (14.3) |
Ever smoker n/total (%) | 83/168 (49.4) | 159/246 (64.6) | 127/188 (67.6) |