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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