Difference in Thresholds Between Auditory Brainstem Response Test and Pure Tone Audiometry by Frequency

Background and Objectives There is no clear standard for the difference in thresholds of auditory brainstem response (ABR) pure tone audiometry (PTA) when using ABR to evaluate reliability PTA. Therefore, we assessed PTA each frequency. Consequently, present here actual values between two tests that can be used as a reference clinic.Subjects Method We retrospectively results 129 ears. Ears which hearing frequency continuously declined were classified downward group. compared average differences by The level from 50 dB or higher.Results For all ears, appropriate range value was ±5 at 2 kHz. At 1 kHz, threshold 10 higher than PTA, it less 4 In group, increased kHz subgroups level, showed similar (p<0.05).Conclusion threshold, regardless severity tendency loss, smallest dB. lower each.