| Caprini评分 | VTE组 | 对照组 | χ2 | P值 |
| 0~1 | 1 | 12 | 9.865 | 0.002 |
| 2 | 2 | 25 | 22.199 | 0.000 |
| 3~4 | 13 | 58 | 41.257 | 0.000 |
| ≥5 | 99 | 20 | 108.671 | 0.000 |
| 5 | 19 | 7 | 6.244 | 0.012 |
| 6 | 25 | 9 | 8.836 | 0.003 |
| 7 | 14 | 1 | 1.651 | 0.199 |
| 8 | 21 | 2 | 17.400 | 0.000 |
| ≥9 | 20 | 1 | 18.918 | 0.000 |
| 均值 ± 标准差 | 6.783 ± 2.481 | 3.357 ± 1.650 | 12.332 (t值) | 0.000 |