Table 3

Pain parameters and clinical data for CBP and OA patients

CBP
OA

Session1
Session2
p-value

Session 1
Session 2
p-value

Pain Int.
49.5 ± 19
27.2 ± 18.1
0.034
Pain Int.
39.6 ± 14.3
37.2 ± 12.6
0.513
VAS
62.3 ± 9.9
34.3 ± 19.6
0.008
VAS
55.5 ± 12.3
52.5 ± 11.9
0.501
Affective
3.4 ± 4.5
2.3 ± 4.4
0.331
Affective
0.5 ± 1.0
1.5 ± 1.0
0.308
Sensory
11.1 ± 9.2
8.3 ± 10.1
0.482
Sensory
9.3 ± 1.7
6.3 ± 3.9
0.334
NPS (N)
17.8 ± 13.7
9.9 ± 8.4
0.055
Pain (W)
10.0 ± 1.6
9 ± 2.4
0.252
Unpleas. (N)
5.2 ± 1.3
3.4 ± 2.1
0.094
Stiffness (W)
5.0 ± 1.4
5.0 ± 1.4
1.000
Deep (N)
6.6 ± 1.7
3.5 ± 2.6
0.082
Activity (W)
35.2 ± 4.9
31.5 ± 9.1
0.243
Surface (N)
4.2 ± 1.9
1.9 ± 2.3
0.025
Pain Int./Pr
29.3 ± 10.4
23.1 ± 8.3
0.0622

Session 1 = prior to use of Lidoderm therapy; Session 2 = after 2 weeks of Lidoderm therapy. Pain Int. = mean pain rating during the scan; Pain Int./Pr = mean pain rating during the scan divided by normalized applied pressure.VAS = visual analog scale; Unpleas = unpleasantness; VAS, Affective and Sensory are from McGill short form. N = Neuropathic Pain Scale; W = WOMAC. All parameters are expressed as μ ± S.D. p values were computed using a paired t-test.

Baliki et al. Molecular Pain 2008 4:47   doi:10.1186/1744-8069-4-47