| Pathology | Sensitivity | Specificity | NPV | PPV | Accuracy |
---|
+ | – |
---|
IU | + | 10 | 15 | 71.4% | 67.4% | 88.57% | 40.00% | 68.3% |
| – | 4 | 31 | 95%CI = 41.9%~ 91.6% | 95%CI = 51.1%~ 80.0% | |
CT | + | 2 | 1 | 14.3% | 97.8% | 78.95% | 66.67% | 78.3% |
| – | 12 | 45 | 95%CI = 51.1%~ 80.0% | 95%CI = 82.8%~ 99.9% | |
EUS | + | 3 | 2 | 30.0% | 95.0% | 84.44% | 60.00% | 82% |
| – | 7 | 38 | 95%CI = 6.7%~ 65.2% | 95%CI = 83.8%~ 99.4% | |
- Abbreviations: CI Confidence interval, CT Computed tomography, EUS Endoscopic ultrasonography, IU Intraoperative ultrasonography, NPV Negative predictive value, PPV Positive predictive value, RLN Recurrent laryngeal nerve
- For diagnosis of right RLN lymph nodes. The sensitivity had statistically significant difference (χ2 = 10.077, P = 0.006)
- For diagnosis of right RLN lymph nodes. The specificity had statistically significant difference. (χ2 = 21.725, P < 0.001)
- For diagnosis of right RLN lymph nodes. The NPV had no statistically significant difference (χ2 = 1.511, P = 0.470)
- For diagnosis of right RLN lymph nodes. The PPV had no statistically significant difference (χ2 = 1.271, P = 0.530)
- For diagnosis of right RLN lymph nodes. The diagnostic accuracy had no statistically significant difference(χ2 = 3.088, P = 0.214)