Table 3.
Diagnostic value for suspicious lymph nodes in the contralateral central neck compartment of uni-PTC patients with or without Hashimoto's thyroiditis on neck US.
| Parameter | Without Hashimoto's thyroiditis | Hashimoto's thyroiditis | ||||
|---|---|---|---|---|---|---|
| Con-CLNM (+) (%) | Con-CLNM (−) (%) | p | Con-CLNM (+) (%) | Con-CLNM (−) (%) | p | |
| Abnormal US | 30 (71.4) | 12 (28.6) | <0.001 | 14 (32.6) | 29 (67.4) | 0.033 |
| Normal US | 20 (22.7) | 68 (77.3) | 11 (14.3) | 66 (85.7) | ||
| Value of neck US in diagnosis of suspicious lymph nodes | ||||||
| Sensitivity | 60.0% | 56.0% | ||||
| Specificity | 85.0% | 69.5% | ||||
| PPV | 71.4% | 32.6% | ||||
| NPV | 77.3% | 85.7% | ||||
| Accuracy | 73.1% | 66.7% | ||||
Note: Variables with statistical significance are shown in bold; the chi-square test was adopted. Abbreviations: con-CLNM, contralateral central lymph node metastasis; uni-PTC, unilateral papillary thyroid carcinoma; PPV, positive predictive value; NPV, negative predictive value; US, ultrasonography.