Table 6.

Effects of CYP2C19 genotype and clarithromycin resistance on the eradication rate

		EM †			PM
Group	H. pylori eradication *	HomEM	HetEM	All EM		p-value (HomEM, HetEM, PM)
A	S	4 (0)	6 (1)	10 (1)	2 (0)	0.99
	F	1 (1)	2 (1)	3 (2)	1 (1)
B	S	4 (0)	3 (0)	7 (0)	4 (0)	0.17
	F	1 (0)	4 (0)	5 (0)	0 (0)
C	S	5 (0)	6 (0)	11 (0)	2 (0)	0.60
	F	2 (1)	0 (0)	2 (1)	0 (0)

^*S, Success; F, Failure.

^†The values in parentheses indicate the number of subjects infected by clarithromycin-resistant H. pylori. HomEM, homozygous extensive metabolizers; HetEM, heterozygous extensive metabolizers; EM, extensive metabolizers; PM, poor metabolizers.