Table 4. Diagnostic accuracy determined by computing the AUROCs, best sensitivity-specificity balance, likelihood ratios, and sensitivity at the fixed specificities for the optic nerve head parameters of OCT and HRT to discriminate between CON eyes with a glaucoma-like disc and glaucoma eyes.
OCT and HRT parameters | AUROC | 95% CI | AUROCs P Value | Cutoff Point | Sensitivity (%) | Specificity (%) | +LR | −LR | Sensitivity | |
Specificity 90% | Specificity 95% | |||||||||
BMO-anterior LC | 0.754 | 0.610–0.866 | 0.0009 | 395 µm | 73.33 | 79.41 | 3.56 | 0.34 | 33.33 | 13.33 |
Mean cupping depth | 0.803 | 0.662–0.903 | <0.0001 | 0.27 mm | 85.71 | 67.65 | 2.65 | 0.21 | 41.43 | 14.29 |
Maximum cupping depth | 0.829 | 0.692–0.922 | <0.0001 | 0.6 mm | 85.71 | 73.53 | 3.24 | 0.19 | 57.14 | 28.57 |
AUROC = area under the receiver operating characteristic curve; OCT = optical coherence tomography; HRT = Heidelberg Retina Tomography; CI = confidence interval; +LR = positive likelihood ratio; −LR = negative likelihood ratio; BMO-anterior LC = distance between Bruch's membrane opening and anterior surface of lamina cribrosa.
Note: The cutoff points were calculated using the MedCalc software as the points with the best sensitivity-specificity balance. Sensitivities at fixed specificities of 90% and 95% are shown.