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Table 1 Pre-surgery measures for all patients, comparison between those with spinal stenosis and disc herniation

From: Altered somatosensory profile according to quantitative sensory testing in patients with degenerative lumbar spine disorders scheduled for surgery

  All patients n = 105a Spinal stenosis n = 61b Disc herniation n = 30c Spinal stenosis/Disc herniation P
Age, mean (SD) 59.8 (12.9) 67.6 (7.6) 47.7 (11.4) <0.001
Women, n (%) 55 (52.4) 32 (52.5) 16 (53.3) 0.937
Pain duration back/leg > 2 years, n (%) 55 (52.5) 38 (63.3) 8 (30.7) 0.003
ODI, mean (SD) 38.4 (15.6) 37.9 (15.3) 40.2 (16.0) 0.539
VAS back pain, mean (SD) 53.8 (26.4) 54.1 (25.0) 49.9 (28.8) 0.493
VAS leg pain, mean (SD) 61.2 (25.2) 61.9 (22.0) 67.4 (24.3) 0.298
EQ-5D index, mean (SD) 0.42 (0.31) 0.41 (0.32) 0.41 (0.29) 0.924
EQ-VAS, mean (SD) 50.5 (21.8) 51.4 (21.6) 50.7 (22.0) 0.896
HADS anxiety, mean (SD) 6.0 (3.8) 5.6 (3.5) 5.9 (4.1) 0.744
HADS depression, mean (SD) 4.7 (3.3) 4.3 (3.1) 4.5 (3.5) 0.773
SES, mean (SD) 129.8 (40.8) 132.5 (40.3) 125.1 (44.0) 0.451
SF-36 PCS, mean (SD) 29.4 (9.1) 28.5 (9.4) 30.3 (8.9) 0.417
SF-36 MCS, mean (SD) 46.4 (12.5) 47.9 (11.4) 45.5 (15.0) 0.419
FABQ-PA, mean (SD) 14.8 (6.0) 14.0 (6.3) 15.5 (5.6) 0.321
Pain drawing n (%):
Back and/or unilateral leg pain 41 (39.8) 14 (23.35) 19 (65.5) <0.001
Bilateral leg pain 43 (41.7) 34 (56.7) 6 (20.7)
Back- leg pain and other pain locations 19 (18.4) 12 (20.0) 4 (13.8)
  1. SD standard deviation, ODI Oswestry Disability Index (0–100) (higher score indicate higher disability), VAS visual analogue scale (0–100) (higher score indicate higher pain intensity); EQ-5D (− 0.594 - 1) and EQ-VAS EuroQol (higher score indicate better health), HADS Hospital anxiety and depression scale (0–21) (higher score indicate more signs of symptoms), SES Self-Efficacy Scale (0–200) (higher score indicate better self-efficacy), SF-36 PCS physical component summery and MCS mental component summery (0–100) (higher score indicate better health), FABQ-PA fear avoidance beliefs questionnaire – physical activity (0–24) (higher score indicates higher level of fear avoidance beliefs)
  2. aMaximum missing data in each column: n = 11, b n =9, c n = 4