SHORT-TERM VARIABILITY OF PURE-TONE THRESHOLDS OBTAINED WITH TDH-39P EARPHONES

Details

• Alternative Title:
  Int J Audiol
• Personal Author:
  Flamme, Gregory A. ; Stephenson, Mark R. ; Deiters, Kristy K. ; Hessenauer, Amanda ; VanGessel, Devon ; Geda, Kyle ; Wyllys, Krista ; McGregor, Kara
• Description:
  Objective
  
  To estimate the short-term variability and correlates of variability in pure-tone thresholds obtained using audiometric equipment designed for occupational use, and to examine the justification for excluding 8 kHz as a mandatory threshold in occupational hearing conservation programs.
  
  Method
  
  Pure-tone thresholds and other hearing-related tests (e.g., noise dosimetry, otoscopy, middle ear assessment) were conducted with a group of 527 adults between 20 and 69 years of age. A total of five measurement visits were completed by participants within a 14-day period.
  
  Results
  
  The 50 % critical difference boundaries were −5 and 0 dB at 4 kHz and below and −5 and 5 dB at 6 and 8 kHz. The likelihood of spurious notches due to test-retest variability was substantially lower than the likelihood of failing to detect a notched configuration when present. Correlates of variability included stimulus frequency, baseline threshold, acoustic reflectance of the ear, average noise exposure during the previous 8 hours, age, and the tester’s level of education in audiology.
  
  Conclusion
  
  The short-term variability in 8 kHz pure tone thresholds obtained with the TDH-39P earphone was slightly greater than at other frequencies, but this difference was not large enough to justify the disadvantages stemming from the inability to detect a 6 kHz notch.
  
  
• Subjects:
  Adult Aged Article Audiometry Audiometry, Pure-Tone Auditory Threshold Equipment Design Female Hearing Loss, Noise-Induced Humans Male Middle Aged Noise Noise-induced Hearing Loss Occupational Diseases Occupational Exposure Occupational Health Predictive Value Of Tests Reliability Reproducibility Of Results Young Adult

  More +
• Source:
  Int J Audiol. 53(0 2):S5-15.
• Pubmed ID:
  24564693
• Pubmed Central ID:
  PMC4668587
• Document Type:
  Journal Article
• Funding:
  CC999999/Intramural CDC HHS/United States
• Volume:
  53
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:61724bbe803503c82e555d4468c46633c41dc9a6b7866d74cb87524aca392684
• Download URL:
  https://stacks.cdc.gov/view/cdc/36747/cdc_36747_DS1.pdf
• File Type:
  [PDF - 1.41 MB ]