Table 3.
Receiver operating characteristic analysis for each parameter in differentiating NL from KCS.
| AUROC | 95% CI | Cutoff | Sensitivity (%) | Specificity (%) | |
|---|---|---|---|---|---|
| Scansys | |||||
| KCP | 0.813 | 0.745–0.881 | > 8.9 | 67.61 | 85.85 |
| Pentacam | |||||
| BAD-D | 0.970 | 0.950–0.990 | > 1.525 | 92.96 | 89.62 |
| IS-value | 0.669 | 0.582–0.755 | > 0.665 | 47.89 | 84.91 |
| KISA | 0.604 | 0.518–0.690 | > 6.21 | 49.30 | 71.70 |
| ISV | 0.756 | 0.681–0.830 | > 21.5 | 54.93 | 87.74 |
| IVA | 0.756 | 0.681–0.831 | > 0.195 | 42.25 | 96.23 |
| KI | 0.724 | 0.641–0.806 | > 1.045 | 56.34 | 83.96 |
| CKI | 0.633 | 0.548–0.717 | > 1.015 | 22.54 | 95.28 |
| IHA | 0.611 | 0.522–0.699 | > 8.45 | 43.66 | 81.13 |
| IHD | 0.716 | 0.635–0.797 | > 0.0155 | 52.11 | 85.85 |
| Corvis ST | |||||
| CBI | 0.764 | 0.693–0.834 | > 0.0055 | 71.83 | 66.98 |
| TBI | 0.892 | 0.846–0.938 | > 0.234 | 92.96 | 74.53 |
| SPA1 | 0.652 | 0.568–0.736 | ≤ 95.77 | 46.48 | 83.96 |
| DA ratio (2 mm) | 0.659 | 0.576–0.743 | > 4.4042 | 64.79 | 63.21 |
| Integrated radius | 0.651 | 0.567–0.735 | > 8.893 | 40.85 | 87.74 |
NL normal controls, KCS keratoconus suspect, AUROC area under the receiver operating characteristic curve, CI confidence interval.