| Pathology | Sensitivity | Specificity | NPV | PPV | Accuracy |
---|
+ | – |
---|
IU | + | 11 | 10 | 91.7% | 79.2% | 97.44% | 52.38% | 81.7% |
| – | 1 | 38 | 95%CI = 61.4%~ 99.8% | 95%CI = 66.2%~ 90.0% | |
CT | + | 2 | 0 | 16.7% | 100.0% | 82.76% | 100% | 83.3% |
| – | 10 | 48 | 95%CI = 2.1%~ 43.4% | 95%CI = 92.6%~ 100.0% | |
EUS | + | 4 | 7 | 40.0% | 82.5%, | 84.62% | 36.36% | 74% |
| – | 6 | 33 | 95%CI = 12.2%~ 76.6% | 95%CI = 66.9%~ 97.4% | |
- 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 left RLN lymph nodes. The sensitivity had statistically significant difference (χ2 = 14.067, P = 0.001)
- For diagnosis of left RLN lymph nodes. The specificity had statistically significant difference. (χ2 = 10.819, P = 0.004)
- For diagnosis of left RLN lymph nodes. The NPV had no statistically significant difference (χ2 = 5.009, P = 0.82)
- For diagnosis of left RLN lymph nodes. The PPV had no statistically significant difference (χ2 = 2.866, P = 0.239)
- For diagnosis of left RLN lymph nodes. The diagnostic accuracy had no statistically significant difference (χ2 = 1.646, P = 0.439)