| 年龄分组(岁) | 男性 | 女性 | c2 | P | ||
| 例(n) | Hp阳性 | 例(n) | Hp阳性 | |||
| 18~29 | 109 | 81 (74.31) | 48 | 34 (70.83) | 0.032 | 0.858 |
| 30~39 | 159 | 107 (67.29) | 67 | 48 (71.64) | 0.076 | 0.782 |
| 40~49 | 241 | 142 (58.92) | 149 | 116 (77.85) | 2.932 | 0.087 |
| 50~59 | 387 | 229 (59.17) | 322 | 172 (53.41) | 0.660 | 0.416 |
| 60~69 | 216 | 109 (50.46) | 169 | 90 (53.25) | 0.094 | 0.759 |
| ≥70 | 67 | 20 (29.85) | 65 | 39 (60.00) | 4.673 | 0.031 |
| 合计 | 1179 | 688 (58.35) | 820 | 499 (60.85) | 1.252 | 0.263 |