[Retracted] Diagnostic Value of Endoscopic Narrow-Band Imaging Technique in Early Gastric Cancer and Precancerous Lesions

Table 6

Comparison of the diagnostic efficacy of the two groups of inspection methods.

Measurement site	Precancerous lesions				Early gastric cancer
	Accuracy (%)	Sensitivity (%)	Specificity (%)	Kappa value	Accuracy (%)	Sensitivity (%)	Specificity (%)	Kappa value
B group ()	94.00	93.33	94.29	0.860	96.00	90.90	97.43	0.883
A group ()	76.00	69.23	78.38	0.433	84.00	70.00	87.50	0.535

Note: compared with group A, .