| | 基线 | 1个月 | 3个月 | 6个月 |
| 对照组 | 519.45 ± 39.54 | 312.05 ± 93.55 | 317.35 ± 97.27 | 276.30 ± 73.09 |
| 观察组 | 518.85 ± 30.67 | 271.65 ± 75.31 | 260.20 ± 68.15 | 271.35 ± 80.82 |
| t值 |
| 1.50 | 2.15 | 0.20 |
| P值 |
| 0.14 | 0.038 | 0.84 |