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Related Experiment Videos

On prediction of hearing disability.

A Parving, B Ostri, M Katholm

    Audiology : Official Organ of the International Society of Audiology
    |January 1, 1986
    PubMed
    Summary

    This study found that 2-kHz pure-tone frequency best predicts speech intelligibility in quiet, while 3-kHz is best in noise. Discrimination score in background noise is valuable for assessing hearing disability.

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    Two families with phenotypically different hereditary low frequency hearing impairment: longitudinal data and linkage analysis.

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    Area of Science:

    • Audiology
    • Speech-Language Pathology
    • Epidemiology

    Background:

    • Hearing loss significantly impacts quality of life, particularly in noisy environments.
    • Objective measures of hearing are crucial for accurate diagnosis and intervention.
    • Self-assessment of hearing disability can be subjective and may not align with objective findings.

    Purpose of the Study:

    • To identify pure-tone frequencies best correlated with speech intelligibility in quiet and background noise.
    • To evaluate the utility of the discrimination score (DS) in assessing hearing disability.
    • To determine a valid low fence for the DS using a self-assessment correlation.

    Main Methods:

    • Investigated 158 male subjects (median age 60) from a longitudinal epidemiological study.
    • Correlated pure-tone audiometry with speech discrimination scores (DS) in quiet and noise.
    • Compared DS results between subjects reporting hearing disability and those without.

    Main Results:

    • The 2-kHz pure-tone frequency showed the strongest correlation with speech intelligibility in quiet.
    • The 3-kHz pure-tone frequency best correlated with speech intelligibility in background noise.
    • Subjects reporting hearing problems had a median DS of 84% in noise, versus 92% for those without complaints.

    Conclusions:

    • The discrimination score (DS) in background noise is a valuable tool for assessing hearing disability.
    • While 3-kHz is key for noise, a definitive low fence for DS could not be established from this study.
    • Further research is needed to refine objective measures for hearing disability assessment.

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