Blue Laser Imaging-Bright Improves Endoscopic Recognition of Superficial Esophageal Squamous Cell Carcinoma

Table 2

Inter- and intraobserver agreement (κ-value) for ranking score.

	NY to OD	NY to RK	OD to RK
Interobserver agreement	0.613	0.382	0.317
	NY	OD	RK
Intraobserver agreement	0.673	0.873	0.599