. 2017 Mar;31(3):271–277. [Article in Chinese] doi: 10.7507/1002-1892.201609030

表 3.

Comparison of WOMAC scores between 2 groups before and after operation ( Inline graphic )

两组患者手术前后 WOMAC 评分比较（ Inline graphic ）

组别 Group	例数 n	术前 Preoperative	术后 6 周 Six weeks after operation	术后 1 年 One year after operation	术后 3 年 Three years after operation	术后 10 年 Ten years after operation	统计值 Statistic
^* 与术前比较 P<0.05 ^* Compared with preoperative value, P<0.05
A	47	141.3±17.2	68.7±11.4^*	26.6±6.4^*	23.3±5.9^*	22.5±4.6^*	F=2 212.159 P= 0.000
B	66	145.9±18.1	71.5±10.6^*	29.1±7.8^*	25.7±6.1^*	25.8±5.2^*	F=1 578.340 P= 0.000
统计值 Statistic		t=1.486 P=0.177	t=1.716 P=0.115	t=1.612 P=0.145	t=1.857 P=0.079	t=2.086 P=0.037