Table 4 Prevalence of H. pylori virulence factors in Hanoi and Ho Chi Minh
Hanoi (n = 53) | Ho Chi Minh (n = 47) | p (Hanoi vs. Ho Chi Minh) | |
|---|---|---|---|
cagA | N.S | ||
Positive | 51 (96.2%) | 44 (93.6%) | |
Negative | 2 (3.8%) | 3 (6.4%) | |
cagE | N.S | ||
Positive | 49 (92.5%) | 39 (83.0%) | |
Negative | 4 (7.5%) | 3 (6.4%) | |
vacA m | 0.034 | ||
m1 | 31 (58.%) | 17 (36.2%) | |
m2 | 22 (41.5% | 30 (63.8%) | |
vacA s | N.S | ||
s1 | 53 (100%) | 48 (100%) | |
s2 | 0 (0%) | 0 (0%) | |
vacA i | N.S | ||
i1 | 50 (94.3%) | 44 (93.6%) | |
i2 | 3 (5.7%) | 3 (6.4%) | |
babA | N.S | ||
Positive | 50 (94.3%) | 42 (89.4%) | |
Negative | 3 (5.7%) | 5 (10.6%) | |
oipA status | N.S | ||
On | 53 (100%) | 48 (100%) | |
Off | 0 (0%) | 0 (0%) | |
iceA | N.S | ||
iceA1 | 26 (49.1%) | 24 (51.1%) | |
iceA2 | 23 (43.4%) | 21 (44.7%) | |
Both iceA1/2 | 2 (3.8%) | 1 (2.1%) | |
None | 2 (3.8%) | 1 (2.1%) | |
homB | N.S | ||
Positive | 19 (35.8%) | 20 (42.6%) | |
Negative | 34 (64.2%) | 27 (57.4%) | |
Quadruple positivity | 0.046 | ||
Yes | 29 (54.7%) | 16 (34.0%) | |
No | 24 (45.3%) | 31 (66.0%) |