Age (years), mean (range) | 56.3 (20.1–87.3) | 57.1 (24.9–87.3) | 54.6 (20.1–81.9) |
Female/male ratio | 9.25/1 | 8/1 | 13/1 |
Follow up | | | |
Years | 855.8 | 627.0 | 225.4 |
Median | 3.65 | 4.30 | 2.75 |
Range | 0–21.6 | 0–21.6 | 0.2–15.9 |
Anti-SSA/Ro, No (%) | 94 (57) | 77 (71) | 17 (30) |
Anti-SSB/La, No (%) | 71 (43) | 62 (57) | 9 (16) |
RF, No (%) | 67 (41) | 52 (48) | 15 (27) |
Anti-CCP, No (%) | 5 (3) | 3 (3) | 2 (4) |
Anti-CCP, No (%) | | | |
Specificity (%) | 98.8 | 98.1 | 100 |
Sensitivity (%) | 75 | 50 | 100 |
PPV (%) | 60 | 50 | 100 |
NPV (%) | 99.4 | 98.1 | 100 |
RF | | | |
Specificity (%) | 60.6 | 52.8 | 75.9 |
Sensitivity (%) | 100 | 100 | 100 |
PPV (%) | 6.0 | 3.8 | 13.3 |
NPV (%) | 100 | 100 | 100 |
McNemar’s test (p value) | <0.0001 | <0.0001 | <0.0001 |
κ Value (95% CI) | 0.058 (−0.013 to 0.129) | 0.021 (−0.044 to 0.086) | 0.184 (−0.041 to 0.410) |