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Acoustic impedance values in the elderly

M A Nerbonne, A T Bliss, R L Schow

    Journal of the American Auditory Society
    |September 1, 1978
    PubMed
    Summary
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    This study examined how aging affects acoustic impedance in older adults. Results showed a slight, non-significant decrease in static compliance with age, indicating separate norms for the elderly may not be necessary.

    Area of Science:

    • Audiology
    • Gerontology
    • Otolaryngology

    Background:

    • Acoustic impedance testing is crucial for assessing middle ear function.
    • Understanding age-related changes in acoustic impedance is important for accurate diagnosis in the elderly.

    Purpose of the Study:

    • To evaluate the effects of age on acoustic impedance values in elderly individuals.
    • To determine if separate acoustic impedance norms are needed for the elderly population.

    Main Methods:

    • Pure tone audiometry, otoscopic examination, and impedance testing were performed.
    • Subjects were grouped by age: 20-29 years, 60-69 years, and 70-79 years.

    Main Results:

    • A slight, non-significant trend for static compliance to decrease with advancing age was observed.

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  • No statistically significant differences in acoustic impedance values were found between younger and older adult groups.

    • Conclusions:

    • The findings suggest that current acoustic impedance norms may be applicable to the elderly population.
    • Separate normative values for acoustic impedance in the elderly are likely not warranted based on this study's results.