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

Table 3

Comparison of regional alpha 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 for 1 vs. 3	p
Left anterior	3.54	4.84	8.35	18.295	≤0.001	U=52	≤0.001
	(1.18-14.86)	(0.17-21.9)	(2.96-18.47)			Z=-4.239
Right anterior	3.83	4.38	9.21	9.873	0.007	U=101	0.003
	(1.98-20.47)	(1.35-13.83)	(0.71-23.76)			Z=-3.006
Left posterior	27.745	32.75	60.56	3.226	0.199	-	-
	(10.83-140.8)	(11.86-141.99)	(5.69-249.9)
Right posterior	43.8	46.39	77.77	4.422	0.110	-	-
	(0.53-216.26)	(2.06-129.23)	(13.76-214.82)

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