Table 2. Receiver operating characteristics from IHC scores of SELENBP1 in distinguishing NBE from preneoplastic lesions from invasive LSCC.

	Sensitivity	Specificity	PPV	NPV	AUC
Distinguishing NBE from preneoplastic lesions	0.80	0.79	0.69	0.84	0.86
Distinguishing NBE from LSCC	0.79	0.82	0.82	0.79	0.89
Distinguishing preneoplastic lesions from LSCC	0.77	0.71	0.65	0.88	0.80

PPV: positive predict value; NPV: negative predict value; AUC: area under the curve.