表1. 主要肝硬化病因的性别分布（例）.
| 病因 | 例数 | 男性 | 女性 | χ 2 值 | P 值 |
|---|---|---|---|---|---|
| 乙型肝炎 | 400 | 306 | 94 | 2.860 | >0.05 |
| 酒精 | 355 | 311 | 44 | 22.886 | <0.05 |
| 乙型肝炎+酒精 | 134 | 124 | 10 | 12.556 | <0.05 |
| 隐源性 | 85 | 51 | 34 | 20.700 | <0.05 |
| 原发性胆汁淤积 | 29 | 12 | 17 | 25.904 | <0.05 |
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