Table 1 .

The evaluation of the treatment considering tinnitus character

Group/n (%) ears	Permanent	Temporary	Disappearance	p
Group one (n = 119 ears)
Before e.s.	106 (89.1 %)	13 (10.9 %)	–
Directly after e.s.	58 (48.8 %)	21 (17.6 %)	40 (33.6 %)	<0.05
30 days after e.s.	58 (48.8 %)	40 (33.6 %)	21 (17.6 %)	<0.05
90 days after e.s.	58 (48.8 %)	47 (39.4 %)	14 (11.8 %)	>0.05
Group two (n = 65 ears)
Before placebo e.s.	56 (86.1 %)	9 (13.9 %)	–
Directly after placebo e.s.	46 (70.8 %)	15 (23.1 %)	4 (6.1 %)	<0.05
30 days after placebo e.s.	50 (77 %)	12 (18.4 %)	3 (4.6 %)	>0.05
90 days after placebo e.s.	48 (73.9 %)	12 (18.4 %)	5 (7.7 %)	>0.05

p < 0.05, change statistically significant

p > 0.05, change statistically not significant

e.s. electrical stimulation