Table 1 Number (percentage) of autoantibody-positive patients pre-diagnosis
Autoantibody-positive patients, number (percentage) | Years pre-diagnosis, median (IQR) | ||
|---|---|---|---|
| Â | 5.7 (4.0-6.3) | 2.8 (1.9-3.6) | 0.6 (0.4-1.1) |
IgA ACPA | 17 (57) | 18 (60) | 23 (77) |
IgG ACPA | 29 (97) | 29 (97) | 30 (100) |
IgM ACPA | 6 (20) | 11 (37) | 13 (43) |
IgA RF | 20 (67) | 23 (77) | 26 (87) |
IgG RF | 4 (13) | 5 (17) | 11 (37) |
IgM RF | 14 (47) | 21 (70) | 25 (83) |