Acoustic Coordinated Reset Neuromodulation in a Real Life Patient Population with Chronic Tonal Tinnitus

Table 1

Demographic data of study population.

Gender
male	151 (76.3%)
female	47 (23.7%)
Age
mean (std.)	50.6 yrs (10.4)
Perception of tinnitus
unilateral	63 (31.8%)
bilateral	135 (68.2%)
Pretreatment
none	30 (15.2%)
one	45 (22.7%)
≥two	123 (62.1%)
Cause of tinnitus
noise trauma	19 (9.5%)
hearing problems	22 (10.9%)
stress	95 (47.3%)
Tinnitus severity
slight (no handicap)	62 (31.8%)
mild	67 (34.4%)
moderate	47 (24.1%)
severe	19 (9.7%)
Tinnitus duration
<6 months	4 (2.0%)
6 months to 4 years	63 (32.0%)
4 years to 10 years	58 (29.4%)
>10 years	72 (36.6%)
Hearing impairment; 250 Hz–8.000 Hz; (averaged/maximal)
≤20 dBHL	84 (43.1%)/22 (11.3%)
20 dBHL–40 dBHL	103 (52.8%)/38 (19.5%)
40 dBHL–60 dBHL	8 (4.1%)/82 (42.0%)
>60 dBHL	0 (0.0%)/53 (27.2%)

The information concerning the cause of tinnitus is based on a self-assessment of the patient and the tinnitus severity is based on the TBF-12 scores (missing values are not taken into account, the total number of subjects varies between variables, and percentages are calculated without taking missing values into account). Hearing impairment is listed with two values: the averaged hearing impairment (in dBHL as measured by pure tone audiometry as described in DIN EN ISO 8253-1 within the range from 250 Hz to 8.000 Hz), for example, averaged over all frequencies of the audiogram, and the maximal hearing impairment, for example, the maximal impairment observed at one frequency.