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Table 2 Changes in postural sway velocity ML across three repeated measurements at 2-3 day intervals

From: Pain relief is associated with decreasing postural sway in patients with non-specific low back pain

NRS score Reference values Measurement 1   Measurement 2 Measurement 3
   n mVel ML p-value n mVel ML p-value n mVel ML p-value
8 21.2 (20.0-22.5) 10 20.4 (18.8-22.0) 0.91 0 - - 0 - -
7 18.6 (17.7-19.4) 5 19.3 (17.5-21.2) 0.40 3 19.8 (16.9-22.7) 0.37 0 - -
6 15.6 (14.7-16.6) 5 15.6 (12.9-18.2) 0.93 4 19.4 (15.7-23.1) 0.04 2 22.4 (20.6-24.2) ≤ 0.001
5 13.9 (12.6-15.2) 7 14.7 (12.7-16.7) 0.47 5 14.5 (12.2-17.6) 0.45 2 17.5 (9.5-25.4) 0.19
4 13.1 (12.0-14.2) 5 11.5 (10.0-13.0) 0.09 5 16.1 (13.0-19.2) 0.04 5 12.8 (11.5-14.0) 0.68
3 12.4 (11.4-13.4) 3 12.0 (10.4-13.7) 0.72 14 12.1 (10.7-13.5) 0.70 10 12.8 (11.0-14.5) 0.71
2 11.5 (10.7-12.3) 3 12.1 (10.3-13.9) 0.47 5 11.0 (10.2-11-9) 0.48 13 11.8 (10.7-13.0) 0.59
1-0 11.0 (10.5-11.7) 0 - - 2 12.5 (11.2-13.8) 0.16 6 12.0 (11.0-13.1) 0.19
  1. Reference values are based on 11 participants per NRS score.
  2. Values are mean and (95% CI)