|
|
| Cases | Amount of bleeding (ml) |
| Implantation | No implantation | 119 | 800 (400, 1150） |
| <31.86 cm2 | 17 | 900 (650, 1500)） | |
| ≥31.86 cm2 | 18 | 1550 (1000, 3000) | |
| Unable measure | 34 | 3000 (1000, 3200) | |
| χ2 |
|
| 46.502 |
| P value |
|
| <0.001 |