Table 4.

Receiver-operating characteristic analysis (ROC) of BIDC tumor size associated with N stages

Cut-off value	Different N stages	AUC	Sensitivity (%)	Specificity (%)
AREA (cm2)
5.37	N0 vs. N1-3	0.840	71	79
6.48	N0-1 vs. N2-3	0.811	72	68
8.23	N0-2 vs. N3	0.823	83	84
Tumor width (cm)
2.47	N0 vs. N1-3	0.836	82	72
3.12	N0-1 vs. N2-3	0.850	78	73
3.40	N0-2 vs. N3	0.956	92	90
Tumor depth (cm)
1.92	N0 vs. N1-3	0.77	69	73
2.18	N0-1 vs. N2-3	0.702	67	63
2.42	N0-2 vs. N3	0.792	75	76