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Conversion between systems of hearing handicap measurement: an empirically determined computational procedure
1Department of Psychology, University of British Columbia, Vancouver, Canada.
The Annals of Otology, Rhinology, and Laryngology
|December 1, 1990
Summary
This study found high correlations between five hearing handicap assessment systems. A conversion table was created to simplify calculations between these audiology methods.
Area of Science:
- Audiology and Otolaryngology
Background:
- Hearing handicap assessment relies on pure-tone thresholds.
- Multiple systems exist for quantifying hearing impairment.
Purpose of the Study:
- To determine the interrelationships among five distinct hearing handicap assessment systems.
- To develop a simplified method for converting between these audiology indices.
Main Methods:
- Analysis of audiograms from 821 individuals.
- Calculation of correlations between five systems: American Academy of Ophthalmology and Otolaryngology, British Association of Otolaryngologists and British Society of Audiology, American Medical Association, industrial, and full-range averages.
Main Results:
- A high degree of correlation (average r = .981) was observed among the five systems.
- Regressions between all pairs of indices were used to create a conversion table.
Conclusions:
- The analyzed hearing handicap systems are highly interrelated.
- A simple computation table facilitates conversion between different audiology assessment methods.