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. 2021 Dec 3;15(5):1014–1024. doi: 10.14444/8134

Table 4.

Paired sample t test of preoperative and postoperative VAS leg and ODI scores.

Test
Mean
N
Standard Deviation
Standard Error of the Mean
VAS leg, preoperative 8.2286 35 1.23873 0.20938
VAS leg, postoperative 2.2286 35 1.94158 0.32819
ODI, preoperative 41.0294 34 12.55892 2.15384
ODI, postoperative 11.8235 34 10.56429 1.81176

Abbreviations: ODI, Oswestry disability index; VAS, visual analog scale.