Table 2.

Diagnosis of Helicobacter pylori Infection in Korea and the United States

	Methods	Korea	United States
			Houston Consensus Conference
Initial diagnosis	Noninvasive	Serology Urea breath test Stool antigen test	Urea breath test Stool antigen test
	Invasive	Rapid urease test Histology Polymerase chain reaction or sequencing for clarithromycin resistance test*	Histology†
Follow-up test after eradication therapy	Noninvasive	Urea breath test Stool antigen test	Urea breath test Stool antigen test
	Invasive	Rapid urease test Histology	Histology†

*When 7 days of standard triple therapy is considered first-line treatment; ^†If endoscopy is performed.