Table 5 Different ACEA and GTA cutoff values (PPV: positive predictive value, NPV: negative predictive value)
Cutoff value | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
|---|---|---|---|---|---|
ACEA | |||||
15° | 90.5 | 31.3 | 77.6 | 55.6 | 74 |
16° | 86.9 | 40.6 | 79.3 | 54.2 | 74 |
17° | 84.5 | 40.6 | 78.9 | 50.0 | 72 |
18° | 84.5 | 50.0 | 81.6 | 55.2 | 75 |
19° | 79.8 | 59.4 | 83.8 | 52.8 | 74 |
20° | 77.4 | 59.4 | 83.3 | 50.0 | 72 |
21° | 73.8 | 65.6 | 84.9 | 28.8 | 72 |
GTA | |||||
65° | 83.3 | 28.1 | 75.3 | 39.1 | 68 |
66° | 81.0 | 31.3 | 75.6 | 38.5 | 68 |
67° | 79.8 | 37.5 | 77.0 | 41.4 | 68 |
68° | 77.4 | 43.8 | 78.3 | 42.4 | 67 |
69° | 73.8 | 43.8 | 77.5 | 38.9 | 66 |
70° | 67.9 | 59.4 | 81.4 | 41.3 | 66 |
71° | 60.7 | 71.9 | 85.0 | 41.1 | 64 |