Correlation between the qualitative PR3-ANCA ELISA and the quantitative PR3 ANCA ELISA
| Quantitative PR3-ANCA ELISA | |||
|---|---|---|---|
| + | – | ||
| Sensitivity, 87%; specificity 93%; positive predictive value, 93%; negative predictive value, 88%. | |||
| ANCA, antineutrophil cytoplasmic antibodies; | |||
| ELISA, enzyme linked immunosorbent assay; | |||
| PR3, proteinase 3. | |||
| Qualitative | |||
| PR3-ANCA | + | 13 | 1 |
| ELISA | – | 2 | 14 |