Table 1 The main patients’ characteristics and disease features
Parameter | Numerical data (%) | |
|---|---|---|
Sex distribution |  Female  Male | 233 (83.2) 47 (16.8) |
Age | (years) ± SD | 58.07 ± 11.12 |
Age at diagnosis | (years) ± SD | 44.65 ± 13.78 |
Disease duration | (years) ± SD | 14.74 ± 1.63 |
DAS28 (CRP) |  | 4.76 ± 1.19 |
HAQ |  | 1.4 ± 0.5 |
Immunologic profile |  RF +  ACPA + | 222 (79.3) 178 (63.6) |
Extra-articular manifestations |  Pulmonary involvement  Ocular involvement  Pericarditis  Kidney involvement  Systemic vasculitis | 136 (48.6) 119 (87.5) 22 (16.1) 6 (4.4) 5 (3.6) 3 (2.2) |
Coxitis | Â | 34 (12.1) |
Atlanto-axial dislocation | Â | 43 (15.4) |