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.