Table 2.

Prevalence of H. pylori genotypes detected in strains

Genotype	Prevalence
cagA
cagA +	173 (61.6%)
cagA -	108 (38.4%)
d(A/F)*	27(9.6%)
vacA
m1s1a	5 (1.8%)
m1s1b	25 (8.9%)
m2s1a	10 (3.5%)
m2s1b	25 (8.9%)
m2s2	128 (45.6%)
m1m2	88 (31.4%)
m1s2	0 (0%)
d(A/F)*	13 (4.6%)
iceA
iceA1	169 (60.2%)
iceA2	45(16%)
iceA1/iceA2	67(23.8%)
d(A/F)*	25(8.9%)
oipA
oipA +	255 (90.8%)
oipA -	26 (9.2%)
d(A/F)*	24(8.5%)

d(A/F)*: discordance between strains isolated from the antrum and the fundus in the same patient