Table 2.

Changes in total BDI scores and BDI subscale scores in patients after WNS treatment for two weeks.

		Placebo	WNS 2.4	WNS 4.8
		(n = 10)	(n = 11)	(n = 11)
		Values	Values	Values
BDI	Before	16.1 ± 1.7	11.1 ± 1.7	12.6 ± 2.4
	After	11.9 ± 2.2	6.2 ± 1.2 a	6.2 ± 1.7 b
	difference	4.2 ± 1.9	4.9 ± 1.5	6.5 ± 2.8
BDI A	Before	5.2 ± 0.9	3.9 ± 0.9	5.0 ± 1.1
	After	4.0 ± 1.1	2.1 ± 0.9 c	2.2 ± 0.6 d
	difference	1.2 ± 1.1	1.8 ± 0.7	2.8 ± 1.1
BDI B	Before	8.5 ± 0.7	6.6 ± 0.8	6.6 ± 0.6
	After	6.2 ± 0.9 e	4.5 ± 0.7 f	4.2 ± 0.7 g
	difference	2.3 ± 0.9	2.1 ± 0.8	2.5 ± 1.0
BDI C	Before	2.4 ± 0.5	1.7 ± 0.4	1.7 ± 0.5
	After	1.8 ± 0.4	0.5 ± 0.2 h	1.1 ± 0.5
	difference	0.6 ± 0.4	1.2 ± 0.4	0.6 ± 0.5

Values are ±SEM; ^a p = 0.033, paired t-test; ^b p = 0.041, paired t-test; ^c p = 0.033, paired t-test; ^d p = 0.031, paired t-test; ^e p = 0.036, paired t-test; ^f p = 0.030, paired t-test; ^g p = 0.029, paired t-test; ^h p = 0.011, paired t-test.