Table 1 Demographics and clinical characteristics of participants with chronic non-specific neck pain and pain-free controls.

From: Brain metabolic alterations in individuals with chronic non-specific neck pain assessed using proton magnetic resonance spectroscopy

 

Neck pain (n = 29)

Control (n = 26)

Demographics

Gender (n, male/female)

10/19

9/17

Age (years)

31.76 ± 9.52

32.62 ± 10.30

Body mass index (kg/m2)

20.97 ± 2.01

21.55 ± 1.98

Side of dominant hand (n, left/right)

1/28

1/25

HADS-anxiety score (0–21)

4.21 ± 1.90

3.46 ± 1.77

HADS-depression score (0–21)

2.62 ± 1.97

2.23 ± 2.01

Clinical characteristics

Side of neck pain (n)

Unilateral pain (left/right)

1/1

–

Bilateral pain (more painful side, left/right)

16/11

–

Neck pain duration (months)

29.10 ± 29.58

–

Neck pain intensity (VAS, 0–100 mm)

60.00 ± 12.83

–

Neck disability (NDI, 0-100)

21.72 ± 7.65

–

Pain extent (%)

3.55 ± 1.16

–

PPT at C2-3 (kPa)

458.56 ± 140.22

653.73 ± 161.17*

PPT at C5-6 (kPa)

480.14 ± 125.80

682.56 ± 167.54*

  1. Data are presented as mean ± standard deviation unless otherwise indicated. *p < 0.001. HADS, Hospital Anxiety and Depression Scale; VAS, visual analog scale; NDI, Neck Disability Index; PPT, pressure pain threshold.
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