Understanding the Correlation between Tomographic and Biomechanical Severity of Keratoconic Corneas

Table 3

Receiver operator characteristics (ROC) curve for each variable. The area under the ROC curve with 95% CI in brackets, cut-off, sensitivity, and specificity are listed for each column.

	Area under the ROC curve	Cut-off	Sensitivity	Specificity
1	0.87; (95% CI: 0.80, 0.92)	<21.48	68.2	88.6
Time	0.51; (95% CI: 0.42, 0.60)	>15.71	70.5	62.8
2	0.69; (95% CI: 0.42, 0.60)	>1.17	19.3	97.7
DA	0.86; (95% CI: 0.79, 0.91)	>16.59	76.1	86.4
AUDA	0.89; (95% CI: 0.82, 0.94)	>0.104	73.9	93.2
an RMS	0.92; (95% CI: 0.85, 0.96)	<0.027	83.0	88.6
bn RMS	0.69; (95% CI: 0.61, 0.77)	<0.027	53.4	88.6
1	0.88; (95% CI: 0.80, 0.92)	>44.3	77.3	93.2
2	0.95; (95% CI: 0.89, 0.98)	>45.3	88.2	95.5
mean	0.93; (95% CI: 0.88, 0.97)	>45.4	80.7	100.0
max	0.99; (95% CI: 0.97, 1.0)	>46.5	95.5	100.0
CCT	0.93; (95% CI: 0.87, 0.96)	<516	92.0	84.1
TPT	0.86; (95% CI: 0.84, 0.97)	<509	83.3	84.1