Table 3.
Helicobacter pylori infection and gastric cancer
| Controls |
Patients |
Pairs | |
| Hp (+) | Hp (-) | ||
| Hp (+) | 39 | 29 | 68 |
| Hp (-) | 20 | 12 | 3 |
| Pairs | 59 | 41 | 100 |
χ2 = 1.31, P = 0.25
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