| 组别 | n | 产后1 d | 产后3 d | 产后4 w |
| 观察组 | 46 | 2.19 ± 0.55 | 4.79 ± 0.83a | 5.51 ± 0.34a |
| 对照组 | 46 | 2.30 ± 0.51 | 3.30 ± 0.79 | 4.42 ± 0.67 |
| t | - | 0.995 | 8.819 | 9.840 |
| P | - | 0.323 | 0.000 | 0.000 |