Archives of oto-rhino-laryngology

, Volume 246, Issue 3, pp 137–141 | Cite as

Pure-tone hearing thresholds in otologically healthy 5-year-old children in Finland

  • T. Rahko
  • P. Karma
Original Investigations


We measured the pure-tone air and bone conduction hearing of 359 randomly selected otologically normal urban preschool children in Finland at the average age of 5.2 years. Children with otoscopically verified middle ear pathology or abnormal impedance audiometry were not included in this sample. The mean air conduction thresholds varied from 16.6 dB at 0.125 kHz to 6.6 dB at 2 kHz, and the mean bone conduction thresholds from 6.0 dB at 0.25 kHz to 0.7 dB at 4 kHz. The pure-tone average (of air conduction thresholds at 0.5, 1 and 2 kHz) of all the ears was 7.6 dB. The distribution of single air conduction hearing thresholds at the frequencies from 0.25 kHz to 4 kHz showed that 66%–75% were at the 5–10 dB level.

Key words

Hearing thresholds Normal hearing Preschool children 


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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • T. Rahko
    • 1
  • P. Karma
    • 1
  1. 1.Department of OtolaryngologyTampere University Central HospitalTampereFinland

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