Table 3. Accuracy in endoscopic diagnosis and severity assessment of AG and IM.

	Overall	Japan and Korea	Others	P value
Diagnosis of AG	84.5 ± 14.8 %	92.7 ± 13.1 %	83.2 ± 14.7 %	0.001
Diagnosis of IM	80.7 ± 20.8 %	91.1 ± 14.9 %	79.0 ± 21.2 %	0.002
Severity of AG & IM	62.5 ± 17.6 %	73.5 ± 20.8 %	60.8 ± 16.4 %	0.000

AG, atrophic gastritis; IM, intestinal metaplasia.