| 组别 | n | 入院前 | 出院时 | 干预三个月 |
| 对照组 | 45 | 0 | 21 (46.67) | 14 (31.11) |
| 实验组 | 45 | 0 | 36 (80) | 33 (73.33) |
| χ2值 |
|
| 10.766 | 16.076 |
| P值 |
|
| 0.001 | <0.001 |