Table 1. Characteristics of the patients with RA included in the study.
Feature | n (%) |
---|---|
Gender (women) | 399 (76.7) |
Age of disease onset, median (IQR) years | 48.6 (35.8–57.2) |
Duration of follow-up, median (IQR) years | 12.1 (5.3–20.7) |
Ever smokers | 97 (20.3) |
Erosions | 325 (65.7) |
anti-CCP positive | 334 (64.2) |
RF positive | 301 (60.2) |
Shared epitope, carrier | 299 (57.5) |
PTPN22, carrier | 137 (26.5) |