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Age-specific prevalence of Helicobacter pylori infection in children from various countries
| Country | Age (years) | H. pylori infection (%) | Reference |
|---|---|---|---|
| Developed country | |||
| Sweden | <2 | 13.6 | 15 |
| Ireland | <3 | 8.6 | 14 |
| Germany | <3 | 2.4 | 17 |
| Japan | <2 | 3.7 | 18 |
| Developing country | |||
| Vietnam | <3 | 22.6 | 19 |
| Mexico | <5 | 46.7 | 20 |
| Egypt | <6 | 33.0 | 21 |
| Bangladesh | <5 | 80.0 | 22 |
| India | <5 | 57.0 | 23 |
| Brazil | <6 | 40.0 | 24 |
| Saudi Arabia | <10 | 32.4 | 25 |
| Turkey | <6 | 41.0 | 26 |
