Table 2: Biopsy results displayed based on NBI with magnification results (number of lesions).

SCC or HGINLGIN or no tumorTotal

NBI-positive617
NBI-negative06565

Total66672

All 72 lesions were Lugol-positive. SCC: squamous cell carcinoma, HGIN: high-grade intraepithelial neoplasia, LGIN: low-grade intraepithelial neoplasia, NBI: narrow band imaging.