Table 4.
Sensitivity, specificity, positive and negative predictive value and likelihood ratio at different cut-off levels
| Cut-off level summation* (cm) | Sensitivity | % Specificity | PPV | NPV | LR+ | LR− |
|---|---|---|---|---|---|---|
| 5.6 | 95.5 | 35.5 | 51.2 | 91.7 | 1.48 | 0.13 |
| 6.9 | 90.9 | 54.8 | 58.8 | 89.5 | 2.01 | 0.17 |
| 7.6 | 81.8 | 61.3 | 60.0 | 82.6 | 2.11 | 0.29 |
| 8.3 | 77.3 | 80.6 | 73.9 | 83.3 | 3.98 | 0.28 |
| 9.3 | 68.2 | 93.5 | 88.2 | 80.6 | 10.49 | 0.34 |
| 10.5 | 45.5 | 93.5 | 83.3 | 70.7 | 7.00 | 0.58 |
*
Summation of invasion and compression part of tumors. LR+, positive likelihood ratio; LR−, negative likelihood ratio; NPV, negative predictive value; PPV, positive predictive value.