Table 1.
The prevalence of the virulence genotypes of Helicobacter pylori from children with antral nodularity and peptic ulcer n (%)
| Virulence factor genes | Antral nodularity | Peptic ulcer | Total |
| (n = 42) | (n = 7) | (n = 49) | |
| cagA | 25 (59.5) | 5 (71.4) | 30 (61.2) |
| vacA s1 | 38 (90.5) | 7 (100) | 45 (91.8) |
| vacA s1a | 32 (76.2) | 7 (100) | 39 (79.6) |
| vacA s1b | 6 (14.3) | 0 (0) | 6 (12.2) |
| vacA s2 | 4 (9.5) | 0 (0) | 4 (8.2) |
| vacA m1 | 13 (31) | 4 (57.1) | 17 (34.7) |
| vacA m2 | 29 (69) | 3 (42.9) | 32 (65.3) |
| vacA s1/m1 | 13 (31) | 4 (57.1) | 17 (34.7) |
| vacA s1/m2 | 25 (59.5) | 3 (42.9) | 28 (57.1) |
| vacA s2/m2 | 4 (9.5) | 0 (0) | 4 (8.2) |
| cagE | 8 (19) | 3 (42.9) | 11 (22.4) |
| iceA1 | 10 (23.8) | 4 (57.1) | 14 (28.6) |
| iceA2 | 25 (59.5) | 3 (42.9) | 28 (57.1) |
| Both iceA1 and iceA2 | 3 (7.1) | 0 (0) | 3 (6.1) |
| Non iceA1 and iceA2 | 4 (9.5) | 0 (0) | 4 (8.2) |
| babA2 | 16 (38.1) | 4 (57.1) | 20 (40.8) |