. 2019 Jun;33(6):698–706. [Article in Chinese] doi: 10.7507/1002-1892.201812097

表 3.

Comparison of VAS scores between the two groups at pre- and post-operation ( Inline graphic )

两组患者手术前后各时间点 VAS 评分比较（ Inline graphic ）

组别 Group	例数 n	术前 Preoperative	术后 1 d One day after operation	末次随访 Last follow-up	统计值 Statistic
^与术前比较 P<0.05，^#与术后 1 d 比较 P<0.05 ^Compared with preoperative value, P<0.05;^#compared with postoperative value at 1 day, P<0.05
A	29	6.31±1.16^#	4.55±0.73^*	1.24±0.87^*#	F=216.050 P= 0.000
B	36	6.22±1.09^#	4.94±0.63^*	1.44±0.99^*#	F=254.145 P= 0.000
统计值 Statistic		t= 0.313 P= 0.756	t=–2.317 P= 0.024	t=–0.862 P= 0.392