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Table 2 Comparisons of indications about treatment effects among different time points

From: Clinical effect evaluation and correlation between preoperative imaging parameters and clinical effect of endoscopic Transforaminal decompression for lumbar spinal stenosis

Variables

Before surgery

3 months after surgery

6 months after surgery

P

VAS

63.4 (57.5,70.6)

11.1 (9.4,15.6)a

5.6 (0.0,8.9)ab

< 0.001

ODI

57.8 (50.0,66.7)

6.7 (4.4,8.9)a

4.0 (2.2,6.7)ab

< 0.001

Walking distance (m)

45.5 (16.5205.5)

1500.0 (1500.0,1500.0)a

1500.0 (1500.0,1500.0)a

< 0.001

  1. a: Compared with the time point before surgery, results showed a significant difference
  2. b: Compared with the time point of 3 months after surgery, results showed a significant difference