Lyndal Carter1, Warwick Williams1,2, Mark Seeto1. 1. a * National Acoustic Laboratories , Sydney, New South Wales , Australia. 2. b Hearing CRC , Melbourne, Victoria , Australia.
Abstract
OBJECTIVE: This paper presents a summary of otoacoustic emission (OAE) data collected as part of an Australian hearing health survey ( Carter, 2011 ; Williams et al, 2014 ) designed to: (1) examine the relationship between audiological indicators and participant characteristics, and (2) extract audiological data suitable for reference use. DESIGN: Cross-sectional cohort study. Distortion product (DP) OAE and transient evoked (TE) OAE measures. STUDY SAMPLE: Age range 11-35 years; N = 1386 participants (2672 test ears). RESULTS: Descriptive statistics for amplitude and signal-to-noise ratio (SNR) were calculated for 327 participants (589 test ears; age 13 to 32 years). DPOAE amplitudes down to the 25th percentile were > 0 dB SPL for test frequencies up to 6 kHz. TEOAE SNRs down to the 25th percentile were > 6 dB SPL up to 4 kHz. SUMMARY: This dataset can be used as a clinical reference for similar populations, providing that the same test parameters are used. CONCLUSIONS: The clinical significance of OAE testing would be greater if agreed criteria were available. These data could be pooled with other datasets to build a substantial OAE database, similar to the existing international standards for pure-tone hearing threshold levels (HTLs) ( ISO, 2000 ).
OBJECTIVE: This paper presents a summary of otoacoustic emission (OAE) data collected as part of an Australian hearing health survey ( Carter, 2011 ; Williams et al, 2014 ) designed to: (1) examine the relationship between audiological indicators and participant characteristics, and (2) extract audiological data suitable for reference use. DESIGN: Cross-sectional cohort study. Distortion product (DP) OAE and transient evoked (TE) OAE measures. STUDY SAMPLE: Age range 11-35 years; N = 1386 participants (2672 test ears). RESULTS: Descriptive statistics for amplitude and signal-to-noise ratio (SNR) were calculated for 327 participants (589 test ears; age 13 to 32 years). DPOAE amplitudes down to the 25th percentile were > 0 dB SPL for test frequencies up to 6 kHz. TEOAE SNRs down to the 25th percentile were > 6 dB SPL up to 4 kHz. SUMMARY: This dataset can be used as a clinical reference for similar populations, providing that the same test parameters are used. CONCLUSIONS: The clinical significance of OAE testing would be greater if agreed criteria were available. These data could be pooled with other datasets to build a substantial OAE database, similar to the existing international standards for pure-tone hearing threshold levels (HTLs) ( ISO, 2000 ).
Entities:
Keywords:
Adolescents; otoacoustic emissions; standards; young adults