Table 3 Diagnostic indices for nodal short and long axial measurements by US
Area under the curve | P value | 95% confidence interval | Cut off | Sensitivity % | Specificity % | PPV % | NPV % | Accuracy % | ||
|---|---|---|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | |||||||||
Size (long axis) | 0.567 | 0.326 | 0.440 | 0.694 | – | – | – | – | – | – |
Size (short axis) | 0.726 | 0.001 | 0.615 | 0.836 | 0.95 | 61.7 | 70 | 76.32 | 53.85 | 64.94 |
Long/short axis ratio | 0.726 | 0.001 | 0.613 | 0.840 | 1.0 | 61.7 | 86.7 | 87.88 | 59.09 | 71.43 |