Fig. 3: Receiver operating characteristic (ROC) analysis of PED height and diameter.

The optimum cutoff used to define “peaking PED” was 158 µm with an area under the curve (AUC) of 0.969 (sensitivity 1.0 (95% confidence interval (CI): 0.59–1.0); specificity 0.93 (95 CI: 0.81–0.99)). For a PED diameter as a parameter of distinction, ROC analysis yielded markedly worse results with an AUC of 0.601 (optimum cutoff: 1598 µm); sensitivity 0.86 (95% CI: 0.42–1.0); specificity: 0.46 (95 CI: 0.31–0.63).