Table 6.

Secondary outcomes (2).

Outcome measure		Active acupuncture (n = 12)				Sham acupuncture (n = 12)
		Baseline, 0 week	End of treatment, 2 week	z b	P b	Baseline, 0 week	End of treatment, 2 week	z b	P b	z c	P c
SSVEP values
Brain regions	Collection point a
Frontal lobe	Fp1	1837.48 ± 527.78	−1005.37 ± 534.92	−3.059	0.002⋆	1777.95 ± 570.19	1480.37 ± 513.78	−1.274	0.213	−4.161	0.000⋆
	Fpz	1678.89 ± 943.97	−1188.33 ± 503.67	−3.059	0.002⋆	1364.02 ± 1053.03	1341.60 ± 1023.07	−0.079	0.937	−4.159	0.000⋆
	Fp2	1804.94 ± 660.26	−1028.08 ± 614.92	−3.059	0.002⋆	1777.18 ± 820.98	1240.12 ± 598.48	−1.571	0.116	−4.164	0.000⋆
Parietal lobe	F3	1591.05 ± 863.06	93.01 ± 910.75	−2.824	0.005⋆	1164.15 ± 957.03	1553.78 ± 1307.15	−0.393	0.695	−3.004	0.003⋆
	Cz	2763.39 ± 2554.71	1106.17 ± 504.41	−2.275	0.023⋆	2076.01 ± 579.12	1756.16 ± 762.25	−1.256	0.209	−2.112	0.035⋆
	F4	1773.88 ± 764.79	2523.65 ± 303.62	−2.353	0.019⋆	1577.77 ± 860.06	1746.99 ± 1159.90	−0.236	0.814	−1.451	0.147
	Po5	6303.71 ± 2553.20	231.15 ± 198.63	−3.061	0.002⋆	3988.84 ± 3251.68	3228.09 ± 2223.94	−0.392	0.695	−3.239	0.001⋆
	Po6	5347.00 ± 3408.52	−1555.04 ± 229.01	−3.061	0.002⋆	5266.82 ± 3862.88	3315.32 ± 1610.80	−1.412	0.158	−4.160	0.000⋆
	Pz	5704.06 ± 2708.39	−387.94 ± 215.27	−3.062	0.002⋆	3447.92 ± 3475.78	2874.76 ± 1941.17	−0.314	0.754	−4.161	0.000⋆
Left temporal lobe	C3	2559.53 ± 1941.23	1659.54 ± 603.56	−1.412	0.158	2590.58 ± 874.17	2249.87 ± 712.02	−1.178	0.239	−1.911	0.056
	T7	2845.63 ± 1529.37	1835.62 ± 380.84	−1.963	0.050	2911.82 ± 1666.74	3840.75 ± 1816.45	−1.256	0.209	−2.693	0.007⋆
Right temporal lobe	C4	3309.66 ± 2050.11	−623.20 ± 1410.03	−3.059	0.002⋆	2917.48 ± 1048.98	2634.10 ± 1185.69	−0.628	0.530	−4.100	0.000⋆
	T8	4118.42 ± 1839.36	3140.23 ± 1351.55	−1.542	0.123	3406.89 ± 1228.21	3847.49 ± 1240.96	−0.785	0.433	−0.925	0.355
Occipital lobe	O1	7741.35 ± 1005.20	−3401.61 ± 1046.62	−3.059	0.002⋆	7255.62 ± 1777.63	6658.14 ± 2010.85	−0.549	0.583	−4.159	0.000⋆
	Oz	8261.32 ± 5089.34	−2743.79 ± 1801.79	−3.059	0.002⋆	8031.33 ± 3639.41	5694.58 ± 3843.58	−1.334	0.182	−4.160	0.000⋆
	O2	7989.59 ± 5127.49	−2723.28 ± 1026.82	−3.059	0.002⋆	7847.87 ± 3334.90	5689.32 ± 5254.53	−1.099	0.272	−4.159	0.000⋆

SSVEP, steady-state visual evoked potentials.

^aThe collection points of SSVEP are symbols, with no special significance.

^bComparison within-group between active acupuncture and sham acupuncture by Wilcoxon Signed-Rank test.

^cComparison between groups treated with active acupuncture and sham acupuncture by the Mann–Whitney U test.

^⋆The difference between the two groups or within-group was statistically significant.