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Table 3 NRS and RDQ scores at the first medical examination

From: Classifying patients with lumbar spinal stenosis using painDETECT: a cross-sectional study

Parameter Nociceptive pain Type of pain unclear (mixed pain) Neuropathic pain p a
Total patients with pain at first examination
 NRS (low back pain) 4.75 ± 0.433 5.88 ± 0.561 6.39 ± 0.691 0.099
 NRS (leg pain) 5.59 ± 0.397 6.72 ± 0.618 6.39 ± 0.687 0.205
 NRS (leg numbness) 4.88 ± 0.422 5.56 ± 0.651 6.83 ± 0.556 0.101
 RDQ 9.00 ± 0.760 9.52 ± 1.16 6.68 ± 1.57 0.025a
Group with pain present ≥3 months
 NRS (low back pain) 5.27 ± 0.523 6.12 ± 0.587 6.43 ± 0.724 0.462
 NRS (leg pain) 5.61 ± 0.479 6.35 ± 0.722 6.57 ± 0.685 0.566
 NRS (leg numbness) 5.49 ± 0.513 5.82 ± 0.666 6.50 ± 0.618 0.713
 RDQ 9.66 ± 0.952 8.82 ± 1.41 13.7 ± 1.77 0.074
Group with pain present <3 months
 NRS (low back pain) 3.56 ± 0.715 5.38 ± 1.28 6.25 ± 2.06 0.275
 NRS (leg pain) 5.56 ± 0.729 7.50 ± 1.20 5.75 ± 2.18 0.275
 NRS (leg numbness) 3.50 ± 0.643 5.00 ± 1.52 8.00 ± 1.23 0.060
 RDQ 7.50 ± 1.19 11.0 ± 2.09 13.5 ± 3.97 0.125
  1. Data are shown as mean ± standard error
  2. The NRS scores of LBP, leg pain, and leg numbness in patients with LBP and/or leg pain caused by LSS were not significantly different among the three pain groups. However, the RDQ score in patients with LBP and/or leg pain caused by LSS was significantly lower in the neuropathic pain group than in the other groups (p < 0.05)
  3. NRS numerical rating scale, RDQ Roland–Morris Disability Questionnaire
  4. aKruskal–Wallis test