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Distribution of families investigated according to parents’ infection with H pylori
| Parental infection | No (%) of families | No of children |
|---|---|---|
| Group 1 (both parents infected) | 170 (41) | 265 |
| Group 2 (one parent infected) | 185 (44) | 256 |
| Father infected | 94 (23) | 133 |
| Mother infected | 91 (22) | 123 |
| Group 3 (neither parent infected) | 61 (15) | 80 |
| Total | 416 (100) | 601 |
