| 基因 | 位点 | GT/AT | URSA组 例数/频率 | 对照组 例数/频率 | Χ2 | P值 |
| H19 | Rs217727 | AA | 3 (8.8) | 11 (26.2) | 7.951 | 0.019 |
| AG | 12 (35.2) | 20 (47.6) |
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| GG | 19 (55.9) | 11 (26.2) |
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| A | 18 (26.4) | 42 (50) | 8.708 | 0.003 | ||
| G | 50 (74.6) | 42 (50) |
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| H19 | rs2107425 | CC | 14 (41.2) | 15 (35.7) | 1.491 | 0.475 |
| CT | 15 (44.1) | 16 (38.1) |
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| TT | 5 (14.7) | 11 (26.2) |
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| C | 43 (63.2) | 46 (54.8) | 1.112 | 0.292 | ||
| T | 25 (36.8) | 38 (45.2) |
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| H19 | rs3741219 | AA | 16 (47.1) | 18 (42.9) | 3.221 | 0.200 |
| AG | 18 (52.9) | 21 (50) |
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| GG | 0 | 3 (7.1) |
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| A | 50 (73.5) | 57 (67.9) | 1.911 | 0.167 | ||
| G | 18 (26.5) | 27 (32.1) |
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