| 组别 | 优 | 良 | 可 | 差 | 优良率(%) |
| 常规手术组(n = 21) | 6 | 10 | 5 | 0 | 76.20 |
| CAS手术组(n = 21) | 11 | 8 | 2 | 0 | 90.48 |
| χ2值 |
|
|
|
| 1.54 |
| P值 |
|
|
|
| 0.02 |