Table 1.
Demographical data of the children included in the study
| H pylori (+) | n (%) | H pylori (-) | n (%) | P | |
| n | 140 | 192 | |||
| Age (yr) (mean ± SD) | 9.89 ± 3.16 | 10.02 ± 2.96 | 0.708 | ||
| Gender | |||||
| Female | 77 | (54.9) | 110 | (57.4) | |
| Male | 63 | (45.1) | 82 | (42.6) | 0.660 |
| Ethnic group | |||||
| Caucasian | 130 | (93.1) | 170 | (88.7) | |
| Asian | 0 | (0.0) | 4 | (2.0) | |
| American Indian | 10 | (6.9) | 18 | (9.3) | 0.156 |
| Educational level | |||||
| Kindergarten | 14 | (9.8) | 24 | (12.4) | |
| BGE1 | 116 | (83.2) | 150 | (78.4) | |
| Polimodal2 | 10 | (7.0) | 18 | (9.2) | 0.564 |
| Place of residence | |||||
| BA city3 | 6 | (4.2) | 10 | (5.2) | |
| Great BA4 | 9 | (6.3) | 7 | (3.6) | |
| BA province5 | 125 | (89.5) | 175 | (91.2) | 0.491 |
1
Basic general education (for children from 6 to 15 years old);
2
For children from 15 to 18 years old;
3
Buenos Aires city (inner city);
4
Great Buenos Aires (suburban areas);
5
Buenos Aires province (inner city).