Table 2 Diagnostic performance of US assessment in thyroid nodules according to the underlying echogenicity of the thyroid parenchyma
| Â | Heterogeneous echogenicity on US | Homogeneous echogenicity on US | P-value |
|---|---|---|---|
Sensitivity | 82.4% (56/68) | 86.8% (223/257) | 0.354 |
Specificity | 76.3% (190/249) | 83.7% (732/875) | 0.009 |
Positive predictive value | 48.7% (56/115) | 60.9% (223/366) | 0.02 |
Negative predictive value | 94.1% (190/202) | 95.6% (732/766) | 0.378 |
Accuracy | 77.6% (246/317) | 84.4% (955/1132) | 0.005 |