| 组别 | 时间 | I级 | II级 | III级 | IV级 | V级 |
| 40 | 治疗前 | 1 | 23 | 12 | 9 | 0 |
| 治疗后 | 0 | 6 | 10 | 14 | 10 | |
| 40 | 治疗前 | 1 | 14 | 14 | 10 | 1 |
| 治疗后 | 0 | 8 | 21 | 7 | 4 |