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Base-line characteristics of the patients
| Characteristic | Group A | Group B | Group C |
| (n = 30) | (n = 30) | (n = 30) | |
| Age (yr) | 48 ± 7 | 50 ± 6 | 52 ± 9 |
| Male | 19 | 17 | 20 |
| Female | 11 | 13 | 10 |
| Endoscopical | normal gastric | chronic atrophic | gastric |
| finding | mucosa | gastritis(CAG) | cancer |
| Pathologic | mild superficial | moderate-severe | gastric |
| finding | gastritis(non-active) | CAG with or | cancer |
| without intestinal | |||
| malplasia |
