. 2017 Feb;31(2):185–190. [Article in Chinese] doi: 10.7507/1002-1892.201608096

表 2.

Comparison of the ODI between 2 groups at pre- and post-operation（ Inline graphic ）

手术前后两组ODI评分比较（ Inline graphic ）

组别 Group	例数 n	术前 Preoperative	术后即刻 Immediately after operation	末次随访 Last follow-up	统计值 Statistic
^与术前比较 P<0.05，^#与术后即刻比较 P<0.05 ^ Compared with preoperative value, P<0.05;^# compared with the value at immediate postoperatively, P<0.05
SSF+VP	25	85.2±6.9^#	32.4±4.7^*	33.8±4.8^*	F=4675.036，P=0.000
SSF+BG	23	87.5±5.9^#	34.3±5.1^*	32.6±4.6^*	F=3893.317，P=0.000
统计值 Statistic		t=–1.252 P= 0.217	t=–1.363 P= 0.186	t=0.852 P=0.400