Table 3 Corvis ST parameters with AUC > 0.6 in distinguishing subclinical keratoconus corneas from normal ones
From: Corneal biomechanics in normal and subclinical keratoconus eyes
Variable | AUC (95% CI) | Optimal threshold | Sensitivity | Specificity | Youden index | Significance level P (Area = 0.5) |
|---|---|---|---|---|---|---|
ARTh | 0.813 (0.740, 0.874) | ≤ 488.1 | 78.08% | 79.71% | 0.5779 | < 0.0001 |
CBI | 0.804 (0.729, 0.866) | > 0.47 | 78.08% | 71.01% | 0.4910 | < 0.0001 |
TBI | 0.858 (0.790, 0.911) | > 0.33 | 78.08% | 76.81% | 0.5489 | < 0.0001 |
DA ratio | 0.632 (0.547, 0.711) | > 4.1 | 73.97% | 47.83% | 0.2180 | 0.0048 |
SPA1 | 0.602 (0.516, 0.683) | ≤ 106.8 | 84.93% | 33.33% | 0.1826 | 0.0321 |