Skip to main content

Table 4 A comparison of demographic and clinical data among patient subgroups with chronic neck pain (CNP), chronic low back pain (CLBP), and both conditions (N = 151)

From: Psychometric validation of the Polish version of the Central Sensitization Inventory in subjects with chronic spinal pain

Parameter CNP
n = 24
CLBP
n = 73
CNP + CLBP
n = 54
P
Age, years +/− SDa 51.7 +/−  11.9 59.0 +/−  16.7 55.6 +/−  14.6 LS vs. C < 0.07
LS vs. LS + C Ns
C vs. L + C Ns
Women 22 (91.7%) 55 (75.3%) 44 (81.5%) Ns
Men 2 (8.3%) 18 (24.7%) 10 (18.5%) Ns
Pain NRS meanb 5.5 (1.5) 6.0 (2.0) 6.0 (2.0) Ns
BMIa 24.4 +/− 3.6
23.6 (6.4)
27.7 +/− 5.6
26.9 (7.6)
26.1 +/− 4.8
26.0 (5.7)
Ns
Unemployment 16 (66.7%) 34 (46.6%) 29 (54.7%) Ns
Sleep disturbances 12 (50.5%) 41 (56.2%) 21 (38.9%) Ns
Alcohol use 0 (0.0%) 10 (13.7%) 6 (11.1%) Ns
CSI-Pol < 40 17 (70.8%) 51 (69.9%) 26 (48.1%) p < 0.03 (whole model)
C vs. LS Ns
LS vs. C + LS < 0.01
C vs. C + LS < 0.06
CSI-Pol > 40 22 (30.1%) 7 (29.2%) 28 (51.8%) p < 0.03 (whole model)
LS vs. C ns
LS vs. LS + C < 0.001
C vs. L + C < 0.03
CSI-Pol 32.0 +/− 16.7
Median 29.5 (IQR 23.5)
31.0 +/− 16.5
Median 32.0 (IQR 25.0)
41.0 +/−  16.5
Median 40.5 (IQR 23.0)
p < 0.03 (whole model)
LS vs. C ns
Ls vs LS + C p < 0.01
C vs. LS + C
P < 0.06
ODI meana 19.7 +/−8.6
Median 19.0 (IQR 12.0)
ODI% 39.5 +/− 17.2
Median 38.0 (IQR 24.0)
ODI 21 +/− 7.9
Median 22.0 (IQR 13.0)
ODI% 42.1 +/−  15.6
Median 44.0 (IQR 24.0)
Ns
NDI meanb 19.2 +/− 6.2
Median 19.5 (IQR 8.0)
NDI% 36.7 +/− 12.9
Median 38.0 (IQR 18.0)
19.2 +/− 7.7
Median 20.0 (IQR 11.0)
NDI% 38.9 +/− 15.8
Median 41.0 (IQR 22.0)
NS
  1. aThe analysis of variance (ANOVA) was applied with post-hoc Tukey analysis. bThe Kruskal-Wallis test was applied with post-hoc Mann-Whitney U test because the assumption of normality of distribution and homogeneity of variances was not met for this factor; categorical variables were compared using chi2 test. BMI body mass index, NDI Neck Disability Index, ODI Revised Oswestry Low Back Pain Disability Questionnaire scale, CRP C-reactive protein, NRS Numeric Rating Scale, CSI–Pol Central Sensitization Inventory, C cervical, LBP low back pain