Table 1.
Selection criteria |
Sex / Hp(+) |
Average age (yr) |
Sydney system |
||||
Female | Male | I | II | III | IV | ||
Group I (no familiar cancer) | 7/3 | 4/2 | 46.3 | 3 | 5 | 2 | 1 |
Group II (stomach cancer in first-degree relatives and cancer of other organs in first- or second- degree relatives) | 6/3 | 4/2 | 47.4 | 1 | 1 | 2 | 6 |