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. 2011 Jun 1;5(2):29–35. doi: 10.1016/j.esas.2011.02.001

Table 2.

Clinical outcomes

Variable Open MIS P value
N Mean SD N Mean SD
ODI at baseline 30 51.33 15.85 28 36.90 15.04 .0011*
ODI at 1 y 29 33.68 18.84 28 18.91 17.85 .0028*
*

Whitney-Mann test.