< Scale Mean ± SD Range Tinnitus questionnaire 29.9 ± 13.7 10.0 – 55.0 Emotional distress 7.8 ± 3.6 4.0 – 15.0 Cognitive distress 5.2 ± 2.9 2.0 – 12.0 Intrusiveness 8.4 ± 3.7 1.0 – 14.0 Auditory perceptual difficulties 3.0 ± 2.7 0 – 8.0 Sleep disturbances 3.1 ± 1.9 0 – 6.0 Somatic complaints 2.0 ± 1.6 0 – 5.0 Beck’s depression inventory 23.7 ± 17.6 2.0 – 55.0 SD: standard deviation Table 2: Tinnitus impairment and depressive symptoms – mean scores for the tinnitus group. Given are the scores of the tinnitus questionnaire and its subscales and of the Beck’s depression inventory.