Table 1 Distribution of Helicobacter pylori strains included in the study (n = 415), according to geographical origin and disease status of patients.
Origin | Disease | No. of strains | Gender (% male) | Median age ± SD (years) |
|---|---|---|---|---|
Western countries | ||||
Portugal | NUD | 50 | 44.7 | 51.3 ± 14.6 |
DU | 36 | 44.4 | 47.6 ± 16.6 | |
GU | 14 | 76.9 | 54.8 ± 14.1 | |
Total number | 100 | 47.3 | 51.2 ± 15.1 | |
France | NUD | 6 | 100.0 | 38.0 ± 7.8 |
DU | 28 | 80.0 | 49.3 ± 14.3 | |
Total number | 34 | 82.9 | 47.7 ± 14.1 | |
Sweden | NUD | 10 | 28.6 | 62.1 ± 6.6 |
DU | 17 | 80.0 | 69.7 ± 12.9 | |
Total number | 27 | 58.8 | 66.6 ± 11.2 | |
Germany | NUD | 10 | 40.0 | 57.3 ± 11.0 |
DU | 10 | 60.0 | 59.8 ± 13.3 | |
Total number | 20 | 50.0 | 58.6 ± 11.9 | |
USA | NUD | 14 | 57.1 | 41.3 ± 8.8 |
DU | 15 | 73.3 | 55.6 ± 10.5 | |
Total number | 29 | 67.9 | 48.7 ± 12.0 | |
Brazil | NUD | 18 | 45.0 | 49.3 ± 13.4 |
DU | 19 | 35.0 | 50.0 ± 18.8 | |
Total number | 37 | 52.4 | 49.7 ± 15.7 | |
Colombia | NUD | 9 | 30.0 | 53.0 ± 13.6 |
DU | 10 | 88.9 | 46.7 ± 11.5 | |
Total number | 19 | 57.9 | 50.0 ± 12.7 | |
East Asian countries | ||||
Japan | NUD | 28 | 46.7 | 55.8 ± 16.1 |
DU | 22 | 59.1 | 40.6 ± 11.5 | |
GU | 21 | 76.2 | 54.4 ± 12.1 | |
Total number | 71 | 57.9 | 44.3 ± 12.7 | |
South Korea | NUD | 37 | 79.5 | 46.4 ± 10.6 |
DU | 29 | 70.8 | 45.8 ± 11.9 | |
GU | 1 | * | - | |
Total number | 67 | 76.1 | 44.7 ± 9.9 | |
African country | ||||
Burkina Faso | DU | 11 | N.A. | N.A. |