Quantitative Data for Transcutaneous Electrical Nerve Stimulation and Acupuncture Effectiveness in Treatment of Fibromyalgia Syndrome

Table 1

Comparison of regional delta power obtained from pretreatment electroencephalography recordings of the patients in the acupuncture and transcutaneous electric nerve stimulation groups with the control group.

Region	Acupuncture [1]	TENS [2]	Control [3]	Kruskal-Wallis Test		Mann-Whitney U Test (post-hoc)
				Chi square	p	U and Z values			p
						1 vs. 3	2 vs. 3	1 vs. 3	2 vs. 3
Left anterior	33.75	38.00	63.49	14.115	0.001	U=54	U=86	≤0.001	0.006
	(8.67-94.88)	(1.18-156.98)	(32.66-132.91)			Z=-3.684	Z=-2.748
Right anterior	30.96	31.095	66.765	10.027	0.007	U=80	U=92	0.003	0.009
	(9.06-118.51)	(11.43-162.62)	(6.83-108.66)			Z=-2.924	Z=-2.573
Left posterior	84.905	88.945	169.785	6.406	0.041	U=93	-	0.011	-
	(48.36-266.14)	(1.45-297.1)	(27.3-258.68)			Z=-2.543
Right posterior	82.81	96.535	169.4	12.206	0.002	U=61	-	0.001	-
	(3.86-282.13)	(40.03-275.62)	(79.79-291.95)			Z=-3.479

TENS, transcutaneous electric nerve stimulation.
Data are presented as median (minimum–maximum).