Table 4 Diagnostic performance of gray-scale ultrasound and combination method
| Â | Methods | Best cutoff value | Sensitivity (%) | Specificity (%) | AUC |
|---|---|---|---|---|---|
All patients | Gray-scale ultrasound | 1.5 | 52.9 | 98.6 | 0.841 |
Combination method | 1.5 | 82.4 | 77.1 | 0.887 | |
Patients without Hashimoto’s thyroiditis | Gray-scale ultrasound | 0.5 | 88.2 | 67.9 | 0.866 |
Combination method | 1.5 | 94.1 | 76.8 | 0.925 |