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Phone positioning influence in high-frequency audiometry.

Elizabeth Oliveira Crepaldi de Almeida1, Aparecida Yumi Nishimori

  • 1Federal Council of Speech and Hearing Therapy, SP, Brazil. nelson_almeida@uol.com.br

Brazilian Journal of Otorhinolaryngology
|January 16, 2007
PubMed
Summary

High frequency audiometry can detect early hearing changes. However, patient self-placement of earphones significantly reduces test reliability, impacting accurate auditory assessment.

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Area of Science:

  • Audiology
  • Hearing Science
  • Diagnostic Tools

Background:

  • High-frequency tonal audiometry is a valuable method for the early detection of auditory alterations.
  • Understanding factors influencing audiometric test reliability is crucial for accurate diagnosis.

Purpose of the Study:

  • To investigate potential differences in high-frequency audiometry results based on who positions the earphone.
  • To assess the impact of self-placement versus evaluator-placement of earphones on hearing test outcomes.

Main Methods:

  • A clinical and experimental study involving 55 undergraduate students with normal hearing.
  • Each participant underwent two high-frequency audiometry tests (10, 12.5, 16 kHz) using an AC40 audiometer.
  • Tests were conducted with the evaluator positioning the earphone and with the participant self-positioning.

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Main Results:

  • Statistical analysis using the kappa coefficient revealed an average kappa value of 0.50 for earphone positioning.
  • The obtained kappa values were below the criterion of 0.70, indicating poor agreement between the two methods.
  • This suggests significant variability introduced by the participant's earphone placement.

Conclusions:

  • Patient self-placement of earphones poses a risk to the reliability of high-frequency audiometric assessments.
  • The method of earphone positioning must be carefully considered to ensure the accuracy and dependability of audiometric results.