The aim of the study was to examine the relationship between tinnitus
pitch and maximum hearing loss, frequency range of hearing loss, and the
edge frequency of the audiogram, as well as, to analyze tinnitus
loudness at tinnitus frequency and normal hearing frequency.
The study included 212 patients, aged between 21 to 75 years (mean age
of 54.4 ± 13.5 years) with chronic subjective tinnitus and sensorineural
hearing loss. For the statistical data analysis we used Chisquare test
and Fisher’s exact test with level of significance p < 0:05.
Tinnitus pitch corresponding to the frequency range of hearing loss,
maximum hearing loss and the edge frequency was found in 70.8%, 37.3%,
and 16.5% of the patients, respectively. The majority of patients had
tinnitus pitch from 3000 to 8000 Hz corresponding to the range of
hearing loss (p < 0:001). The mean tinnitus pitch was 3545 Hz ± 2482.
The majority (66%) of patients had tinnitus loudness 4–7 dB SL. The mean
sensation level at tinnitus frequency was 4.9 dB SL ± 1.9, and 13 dB SL
± 2.9 at normal hearing frequency.
Tinnitus pitch corresponded to the frequency range of hearing loss in
majority of patients. There was no relationship between tinnitus pitch
and the edge frequency of the audiogram. Loudness matching outside the
tinnitus frequency showed higher sensation level than loudness matching
at tinnitus frequency.