Distinct Clinic-Pathological Features of Early Differentiated-Type Gastric Cancers after Helicobacter pylori Eradication

Table 3

Prevalence of inconclusive diagnosis of gastric cancer by initial endoscopic biopsy.

	Eradication group ()	Control group ()	value
Inconclusive diagnosis by initial endoscopic biopsy % ()	26.0% (13/50)	1.6% (2/127)	<0.0001

Note: we excluded four patients from control group whose biopsy samples were tiny for histological analysis.
One patient in the eradication group did not perform biopsy before ESD.