表 2.
Comparison of VAS scores between the two groups before and after operation (
)
两组患者手术前后 VAS 评分比较（
）
| 组别
Group |
例数
n |
术前
Preoperative |
术后 3 d
Three days after operation |
术后 3 个月
Three months after operation |
术后 6 个月
Six months after operation |
术后 12 个月
Twelve months after operation |
| 试验组
Trial group |
33 | 6.00±1.11 | 3.48±0.83 | 1.12±0.49 | 0.95±0.38 | 0.84±0.28 |
| 对照组
Control group |
45 | 6.06±1.07 | 4.00±1.17 | 1.25±0.58 | 0.94±0.37 | 0.81±0.21 |
| 统计值
Statistic |
t=−0.266
P=0.791 |
t=−2.160
P=0.034 |
t=−1.077
P=0.287 |
t=0.090
P=0.928 |
t=0.715
P=0.477 |