分组 | 术前 | 术后1个月 | 术后6个月 | 术后1年 |
对照组(%) | 52.1 ± 4.9 | 52.5 ± 4.8 | 51.5 ± 5.2 | 52.0 ± 4.2 |
观察组(%) | 51.5 ± 4.3 | 53.1 ± 4.5 | 53.7 ± 4.4 | 55.7 ± 4.6 |
P | 0.558 | 0.521 | 0.117 | 0.002 |