Table 2.

Intergroup and Intragroup Comparisons of THI and VAS Scores During Treatment Evaluation Sessions

	Verum acupuncture group		Sham acupuncture group
	(n:53)		(n:52)
Time	THI	VAS	THI	VAS	p**	p***
	(Mean ± SD)	(Mean ± SD)	(Mean ± SD)	(Mean ± SD)
T1	61.11 ± 12.70	7.26 ± 0.98	59.25 ± 13.10	6.98 ± 1.12	0.461	0.174
T2	47.92 ± 13.65	4.92 ± 1.17	52.38 ± 14.19	6.02 ± 1.83	0.104	< 0.001
T3	35.92 ± 15.27	2.41 ± 1.09	56.52 ± 12.08	6.27 ± 1.56	< 0.001	< 0.001
T4	33.85 ± 14.93	2.20 ± 1.09	56.37 ± 12.20	6.39 ± 1.43	< 0.001	< 0.001
T5	32.30 ± 15.40	2.16 ± 1.12	57.87 ± 13.12	6.19 ± 1.57	< 0.001	< 0.001
T6	30.83 ± 15.90	2.06 ± 1.09	59.01 ± 13.35	6.75 ± 1.19	< 0.001	< 0.001
T7	40.26 ± 16.56	3.66 ± 1.38	60.71 ± 13.90	6.84 ± 1.18	< 0.001	< 0.001
P*	< 0.001	< 0.001	0.090	0.078

Times: T1, Pretreatment; T2, treatment 1st week; T3, treatment 2nd week; T4, treatment 3rd week; T5, treatment 4th week; T6, treatment 5th week; T7, Post-treatment 3rd month.

P^*, repeated measurements analysis of variance; P^**, Mann–Whitney-U test (THI); P^***, Mann–Whitney-U test (VAS). Significant results are shown in bold.

THI, Tinnitus Handicap Inventory; VAS, visual analogue scale; SD, standard deviation.