Table 9.
Biomarker index of miR-155 for identification of breast cancer by the Youden index three-group model.
| Parameters | Sensitivity | Specificity | Youden index | 95% CI for Youden | Best cutpoints | |
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Grade | 99.76% | 88.25% | 0.3626 | 0.27-0.455 | 1.528 | 2.638 |
| Stage | 42.40% | 77.19% | 0.4520 | 0.3055-0.5985 | 1.335 | 2.064 |
| Tumor size | 35.67% | 79.03% | 0.4269 | 0.261-0.5928 | 1.362 | 2.172 |
| LNM (N) | 44.94% | 75.17% | 0.4588 | 0.3231-0.5945 | 1.307 | 1.974 |
| HER2 | 38.82% | 79.93% | 0.3444 | 0.1939-0.4949 | 1.376 | 1.985 |
| PR | 35.46% | 77.33% | 0.4246 | 0.2921-0.5572 | 1.337 | 2.038 |
| ER | 80.75% | 80.64% | 0.3397 | 0.2332-0.4462 | 1.387 | 1.484 |
| Ki-67 | 28.37% | 79.8% | 0.3467 | 0.2156-0.4778 | 1.363 | 2.070 |