| 组别 | 显效 | 有效 | 无效 | 总有效 |
| 观察组(n = 39) | 9 (23.1%) | 25 (64.1%) | 5 (12.8%) | 34 (87.2%) |
| 对照组(n = 39) | 1 (2.6%) | 24 (61.5%) | 14 (35.9%) | 25 (64.1%) |
| X2值 |
|
|
| 5.636 |
| P值 |
|
|
| 0.018 |