Table 2.

Receiver operating characteristic analysis for each parameter in differentiating NL from KC.

	AUROC	95% CI	Cutoff	Sensitivity (%)	Specificity (%)
Scansys
KCP	1.000	0.976–1.000	> 16.4	100	98.11
Pentacam
BAD-D	1.000	0.977–1.000	> 3.12	100	100
IS-value	0.986	0.962–1.000	> 1.455	96.08	100
KISA	0.992	0.980–1.000	> 44.11	94.12	99.06
ISV	1.000	0.977–1.000	> 35.5	100	100
IVA	1.000	0.977–1.000	> 0.255	100	100
KI	1.000	0.977–1.000	> 1.075	100	99.06
CKI	0.974	0.947–1.000	> 1.025	90.2	100
IHA	0.912	0.855–0.969	> 11.5	82.35	90.57
IHD	1.000	0.977–1.000	> 0.027	100	100
Corvis ST
CBI	0.998	0.971–1.000	> 0.566	98.04	99.06
TBI	1.000	0.977–1.000	> 0.938	100	100
SPA1	0.945	0.907–0.983	≤ 86.953	88.24	94.34
DA ratio (2 mm)	0.926	0.873–0.979	> 4.755	86.27	90.57
Integrated radius	0.964	0.934–0.994	> 9.546	84.31	96.23

NL normal controls, KC keratoconus, AUROC area under the receiver operating characteristic curve, CI confidence interval.