Table 2.
Sensitivity and specificity of autoantibodies in comparison to IP with Cohen’s K.
| Autoantibody | Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | *Cohen’s κ (95% CI) ± SE |
|---|---|---|---|
| Mi2 | 94.7 (74-99.9) | 100 (94.3-100) | 0.97 (0.9-1) ± 0.03 |
| MDA5 | 80 (56.3-94.3) | 100 (94.2-100) | 0.86 (0.7-1) ± 0.07 |
| Combined ARS Antibodies | 98.6 (92.3-100) | 99.1 (95.2-100) | 0.98 (0.95-1)± 0.02 |
| Jo1 | 100 (83.9-100) | 100 (94.1-100) | 1 |
| EJ | 100 (59–100) | 100 (92.9-100) | 1 |
| KS | 100 (15.8-100) | 100 (92.8-100) | 1 |
| PL-7 | 100 (83.9-100) | 100 (94–100) | 1 |
| PL-12 | 94.7 (74-99.9) | 98.3 (90.8-100) | 0.93 (0.8-1) ± 0.05 |
*Value of Cohen’s κ and strength of agreement.