Variation in the normal hearing threshold predicts childhood IQ, linguistic and behavioural outcomes

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dc.contributor.author Welch, David en
dc.contributor.author Dawes, P en
dc.date.accessioned 2012-03-05T19:39:57Z en
dc.date.issued 2007-06 en
dc.identifier.citation Pediatric Research 61(6):737-744 Jun 2007 en
dc.identifier.issn 0031-3998 en
dc.identifier.uri http://hdl.handle.net/2292/12890 en
dc.description.abstract Childhood hearing level varies considerably within the range considered normal. Four classes of outcome were investigated for associations with hearing thresholds in this range: ability to identify speech in noise, neurocognitive ability, linguistic ability, and behavior. The research was conducted in a general population cohort of 711 children with mean hearing threshold of 15 dB HL or better. Some outcomes: speech in noise, intelligence, and certain linguistic abilities, were predicted in both boys and girls; effects were stronger in girls. In girls only, poorer hearing predicted worse behavior. These effects remained after statistical control for childhood socioeconomic status and otitis media. Variability in normal hearing, due to causes other than otitis media, is associated with the listening, language, and neurocognitive abilities of children, and the behavior of girls. We suggest that these effects may be present for three reasons, cochlear insults, neurodevelopmental factors, and psychological factors. We discuss how these may interact to produce the effects observed. en
dc.publisher International Pediatrics Research Foundation, Inc. en
dc.relation.ispartofseries Pediatric Research en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from: http://www.sherpa.ac.uk/romeo/issn/0031-3998/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Variation in the normal hearing threshold predicts childhood IQ, linguistic and behavioural outcomes en
dc.type Journal Article en
dc.identifier.doi 10.1203/pdr.0b013e31805341c1 en
pubs.issue 6 en
pubs.begin-page 737 en
pubs.volume 61 en
dc.rights.holder Copyright: International Pediatrics Research Foundation, Inc. en
pubs.end-page 744 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 98018 en
pubs.org-id Medical and Health Sciences en
pubs.org-id Population Health en
pubs.org-id Audiology en
pubs.record-created-at-source-date 2010-09-01 en


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