|
| 组别例数(人) | 优 | 良 | 一般 | 差 | 优良率 |
| PFNA组 | 80 | 35 | 31 | 8 | 6 | 82.50% |
| HA组 | 43 | 21 | 7 | 7 | 8 | 65.12% |
| χ2 |
|
|
|
|
| 8.664 |
| P |
|
|
|
|
| 0.034 |