Research indicates that subjective tinnitus severity varies among tinnitus patients. One of the variables held responsible for these differences is depression. However the relationship between depression and tinnitus severity was never investigated more in depth.

If depression is responsible for differences in subjective tinnitus severity two conditions need to be fulfilled. First, there should be evidence for the presence of moderate to severe depressive symptomatology in a substantial group, and second, there should be evidence for a substantial relationship between depressive symptoms and tinnitus severity which can not be explained due to method and content overlap.

In this study we investigated whether tinnitus severity is a depression related problem.

136 consecutive help-seeking tinnitus patients were seen by a psychologist and an audiologist. All patients filled in the Beck Depression Inventory (BDI-II), the Tinnitus Handicap Inventory (THI), and underwent psychoacoustic measurement (pitch and loudness).

Mean scores indicate the presence of no or minimal depressive symptoms. There was only a positive correlation (p < .01) between the BDI-II and the THI. No correlations were found between psychoacoustic measures and the self-report questionnaires. Linear regression analysis revealed that only the somatic depression subscale significantly predicted tinnitus severity.

Tinnitus does not seem to be a depression-like problem. There is no substantial group of tinnitus patients with moderate to severe depressive symptoms. The relation between depressive symptoms and tinnitus severity seems to be an artefact due to content overlap between de THI and the somatic subscale of the BDI-II.

This prospective study involved a longitudinal analysis of the progression of hearing thresholds in patients with osteogenesis imperfecta.

Audiometric results from 36 osteogenesis imperfecta patients (age range, 6–79 years) were compared between two test times with an average interval of 4 years. Audiometric evaluation included acoustic admittance measurements, acoustic stapedial reflex measurements, pure tone audiometry and otoacoustic emissions testing.

Air conduction pure tone average, corrected for sex and age, and bone conduction pure tone average increased significantly in the study population (p < 0.05 and p < 0.001, respectively). In 14.3 per cent of the evaluated ears, an alteration in type and/or severity of hearing loss was observed.

After an average time interval of four years, significant changes in hearing status occurred in a population of osteogenesis imperfecta patients. These findings highlight the importance of regular audiological follow up in osteogenesis imperfecta patients, including audiometry, and measurements of acoustic admittance, acoustic stapedial reflexes and otoacoustic emissions.

Chronic tinnitus is associated with reduced auditory input, which results in changes in the central auditory system. This study aimed to examine the relationship between tinnitus pitch and parameters of audiometry and distortion product otoacoustic emissions. For audiometry, the parameters represented the edge frequency of hearing loss, the frequency of maximum hearing loss and the frequency range of hearing loss. For distortion product otoacoustic emissions, the parameters were the frequency of lowest distortion product otoacoustic emission amplitudes and the frequency range of reduced distortion product otoacoustic emissions.

Sixty-seven patients (45 males, 22 females) with subjective chronic tinnitus, aged 18 to 73 years, were included.

No correlation was found between tinnitus pitch and parameters of audiometry and distortion product otoacoustic emissions. However, tinnitus pitch fell mostly within the frequency range of hearing loss.

The current study seems to confirm the relationship between tinnitus pitch and the frequency range of hearing loss, thus supporting the homeostatic plasticity model.

This study aimed to determine the characteristics of tinnitus and tinnitus-related variables and explore their possible relationship with tinnitus-related handicap.

Eighty-one patients with chronic tinnitus were included. The study protocol measured hearing status, tinnitus pitch, loudness, maskability and loudness discomfort levels. All patients filled in the Tinnitus Sample Case History Questionnaire, the Hyperacusis Questionnaire and the Tinnitus Handicap Inventory. The relationship of each variable with the Tinnitus Handicap Inventory score was evaluated by univariate and multivariate analyses.

Five univariables were associated with the Tinnitus Handicap Inventory score: loudness discomfort level, subjective tinnitus loudness, tinnitus awareness, noise intolerance and Hyperacusis Questionnaire score. Multiple regression analysis showed that the Hyperacusis Questionnaire score and tinnitus awareness were independently associated with the Tinnitus Handicap Inventory score.

Hyperacusis and tinnitus awareness were independently associated with the Tinnitus Handicap Inventory score. Questionnaires on tinnitus and hyperacusis are especially suited to providing additional insight into tinnitus-related handicap and are therefore useful for evaluating tinnitus patients.