Table 1.

Patient characteristics

Item	Healthy	Neuropathic pain	p value
Numbers (n)	9	11
Age	36 ± 9	54 ± 12	< 0.05
Female	55 %	64 %	n.s.
BMI	22.9 ± 2.9	25.3 ± 3.4	n.s.
NRS (rest)	0.0 ± 0.0	4.8 ± 2.3	< 0.05
NRS (motion)	0.0 ± 0.0	7.6 ± 1.7	< 0.05
KAB	1.5 ± 0.4	3.4 ± 0.7	< 0.05

Results are expressed as mean ± standard deviation (SD)

BMI body mass index, NRS (rest/motion) numeric rating scale (0 to 10) of pain, 0: “no pain,” 10: “worst pain imaginable,” KAB questionnaire for self-perceived stress ranging (1–6), 1: “no stress,” 6: “maximum stress,” n.s. not significant