Sixteen-Year Change in Acoustic-Admittance Measures Among Older Adults: Data From a Population-Based Study PurposeThe primary purpose of this study was to measure the 16-year change in peak compensated static acoustic admittance (Peak Ytm) in a population-based cohort of older adults, and to determine whether age was associated with any observed change in Peak Ytm. Other tympanometric measures also were taken and analyzed.MethodData from ... Research Article
Research Article  |   December 01, 2013
Sixteen-Year Change in Acoustic-Admittance Measures Among Older Adults: Data From a Population-Based Study
 
Author Affiliations & Notes
  • David M. Nondahl
    University of Wisconsin—Madison
  • Karen J. Cruickshanks
    University of Wisconsin—Madison
  • Terry L. Wiley
    University of Wisconsin—Madison
  • Ted S. Tweed
    University of Wisconsin—Madison
  • Dayna S. Dalton
    University of Wisconsin—Madison
  • Disclosure:The authors have declared that no competing interests existed at the time of publication.
    Disclosure:The authors have declared that no competing interests existed at the time of publication.×
  • Correspondence to David M. Nondahl: nondahl@episense.wisc.edu
  • Editor: Craig Champlin
    Editor: Craig Champlin×
  • Associate Editor: Dennis McFarland
    Associate Editor: Dennis McFarland×
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Special Populations / Older Adults & Aging / Research Article
Research Article   |   December 01, 2013
Sixteen-Year Change in Acoustic-Admittance Measures Among Older Adults: Data From a Population-Based Study
Journal of Speech, Language, and Hearing Research, December 2013, Vol. 56, 1745-1750. doi:10.1044/1092-4388(2013/12-0381)
History: Received November 28, 2012 , Revised March 25, 2013 , Accepted April 28, 2013
 
Journal of Speech, Language, and Hearing Research, December 2013, Vol. 56, 1745-1750. doi:10.1044/1092-4388(2013/12-0381)
History: Received November 28, 2012; Revised March 25, 2013; Accepted April 28, 2013

PurposeThe primary purpose of this study was to measure the 16-year change in peak compensated static acoustic admittance (Peak Ytm) in a population-based cohort of older adults, and to determine whether age was associated with any observed change in Peak Ytm. Other tympanometric measures also were taken and analyzed.

MethodData from two examinations (1993–1995 and 2009–2010) of the population-based Epidemiology of Hearing Loss Study (n = 1,439 with data at both examinations, ages 48–84 years at baseline) were utilized to assess 16-year change. Tympanometric measures were taken using a 226-Hz probe tone, a positive-to-negative direction of pressure change, and a measured pump speed of 600/200 daPa/s.

ResultsDuring the 16-year period, Peak Ytm declined an average of 0.009 mmho/year (0.009/year for women, 0.007/year for men). Among women, older baseline age was associated with greater decline in Peak Ytm. Among men, baseline age was associated with change in Peak Ytm, but in a nonlinear pattern. Other tympanometric measures demonstrated little change after 16 years.

ConclusionsThese results demonstrate a small degree of middle-ear stiffening after 16 years among these older adults, but not enough to affect function in a manner that would influence clinical decisions.

Acknowledgments
The project described in this article was supported by National Institute on Aging Grant R37AG11099. The content is solely the responsibility of the authors and does not necessarily reflect the official views of the National Institutes of Health.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access