Document Detail


The Challenge of Detecting Minimal Hearing Loss in Audiometric Surveys.
MedLine Citation:
PMID:  22271907     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: This review/tutorial provides framework and context for understanding the complex interaction of hearing measurement methodology, cohort social factors, and their relation to approaches to data interpretation and identification of minimal hearing loss (HL) in audiometric surveys. METHOD: We reviewed pertinent archival studies and performed an original analysis on Centers for Disease Control (CDC) audiometric survey data from children (ages 6-19). CONCLUSIONS: The definition of an otologically normal individual, the pass-fail criterion representing the upper limit of the range of normal hearing, and the quality of the audiometry affect the percentage of persons identified falsely as having a minimal hearing loss. An upper limit of normal hearing of 15 dB HL yields an unacceptably high false-positive rate, particularly when the more variable higher audiometric frequencies are examined. When air-conduction thresholds are assessed in isolation to estimate potential noise damage, the failure to exclude persons who have possible middle- and external-ear problems, including earwax, results in high false positive rates. When these factors and other limitations are considered, audiograms from teens from a recent CDC survey do not show evidence consistent with widespread noise-induced HL. Suggestions are made to improve the effectiveness of pure-tone audiometry and the identification of minimal HL.
Authors:
Robert S Schlauch; Edward Carney
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-23
Journal Detail:
Title:  American journal of audiology     Volume:  -     ISSN:  1558-9137     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9114917     Medline TA:  Am J Audiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
University of Minnesota.
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