Assessment of Gastric Phenotypes Using Magnifying Narrow-Band Imaging for Differentiation of Gastric Carcinomas from Adenomas

Table 3

Diagnostic accuracy of less-experienced endoscopists.

NBI-ME; A-B category	Pretraining; accuracy (95% CI)	Posttraining; accuracy (95% CI)	value
Type A ()	0.75 (0.59–0.91)	0.93 (0.88–0.97)	0.003
Type AB ()	0.65 (0.46–0.84)	0.79 (0.67–0.90)	0.005
Type B ()	0.62 (0.41–0.82)	0.53 (0.34–0.72)	0.034

NBI-ME, narrow-band imaging with magnified endoscopy; CI, confidence interval.