Document Detail

Distortion product otoacoustic emissions in children at school entry: a comparison with pure-tone screening and tympanometry results.
MedLine Citation:
PMID:  15646668     Owner:  NLM     Status:  MEDLINE    
This study examined the test performance of distortion product otoacoustic emissions (DPOAEs) when used as a screening tool in the school setting. A total of 1003 children (mean age 6.2 years, SD = 0.4) were tested with pure-tone screening, tympanometry, and DPOAE assessment. Optimal DPOAE test performance was determined in comparison with pure-tone screening results using clinical decision analysis. The results showed hit rates of 0.86, 0.89, and 0.90, and false alarm rates of 0.52, 0.19, and 0.22 for criterion signal-to-noise ratio (SNR) values of 4, 5, and 11 dB at 1.1, 1.9, and 3.8 kHz respectively. DPOAE test performance was compromised at 1.1 kHz. In view of the different test performance characteristics across the frequencies, the use of a fixed SNR as a pass criterion for all frequencies in DPOAE assessments is not recommended. When compared to pure tone plus tympanometry results, the DPOAEs showed deterioration in test performance, suggesting that the use of DPOAEs alone might miss children with subtle middle ear dysfunction. However, when the results of a test protocol, which incorporates both DPOAEs and tympanometry, were used in comparison with the gold standard of pure-tone screening plus tympanometry, test performance was enhanced. In view of its high performance, the use of a protocol that includes both DPOAEs and tympanometry holds promise as a useful tool in the hearing screening of schoolchildren, including difficult-to-test children.
April Lyons; Joseph Kei; Carlie Driscoll
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American Academy of Audiology     Volume:  15     ISSN:  1050-0545     ISO Abbreviation:  J Am Acad Audiol     Publication Date:    2004 Nov-Dec
Date Detail:
Created Date:  2005-01-13     Completed Date:  2005-04-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9114646     Medline TA:  J Am Acad Audiol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  702-15     Citation Subset:  IM    
Division of Audiology, School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia.
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MeSH Terms
Acoustic Impedance Tests / methods*
Audiometry, Pure-Tone / methods*
Auditory Threshold / physiology*
Case-Control Studies
Child, Preschool
Hearing Loss / diagnosis*
Mass Screening / methods*
Otoacoustic Emissions, Spontaneous*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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