Prevalence of high frequency hearing loss consistent with noise exposure among people working with sound systems and general population in Brazil: A cross-sectional study

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dc.contributor.authorEl Dib, Regina Paolucci [UNIFESP]
dc.contributor.authorSilva, Edina Mariko Koga da [UNIFESP]
dc.contributor.authorMorais, Jose F.
dc.contributor.authorTrevisani, Virgínia Fernandes Moça [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2016-01-24T13:51:22Z
dc.date.available2016-01-24T13:51:22Z
dc.date.issued2008-05-07
dc.description.abstractBackground: Music is ever present in our daily lives, establishing a link between humans and the arts through the senses and pleasure. Sound technicians are the link between musicians and audiences or consumers. Recently, general concern has arisen regarding occurrences of hearing loss induced by noise from excessively amplified sound-producing activities within leisure and professional environments. Sound technicians' activities expose them to the risk of hearing loss, and consequently put at risk their quality of life, the quality of the musical product and consumers' hearing. the aim of this study was to measure the prevalence of high frequency hearing loss consistent with noise exposure among sound technicians in Brazil and compare this with a control group without occupational noise exposure.Methods: This was a cross-sectional study comparing 177 participants in two groups: 82 sound technicians and 95 controls (non-sound technicians). A questionnaire on music listening habits and associated complaints was applied, and data were gathered regarding the professionals' numbers of working hours per day and both groups' hearing complaint and presence of tinnitus. the participants' ear canals were visually inspected using an otoscope. Hearing assessments were performed (tonal and speech audiometry) using a portable digital AD 229 E audiometer funded by FAPESP.Results: There was no statistically significant difference between the sound technicians and controls regarding age and gender. Thus, the study sample was homogenous and would be unlikely to lead to bias in the results. A statistically significant difference in hearing loss was observed between the groups: 50% among the sound technicians and 10.5% among the controls. the difference could be addressed to high sound levels.Conclusion: the sound technicians presented a higher prevalence of high frequency hearing loss consistent with noise exposure than did the general population, although the possibility of residual confounding due to unmeasured factors such as socioeconomic status cannot be ruled out.en
dc.description.affiliationUniversidade Federal de São Paulo, Brazilian Cochrane Ctr, Urgency Med & Evidence Based Med Dept, São Paulo, Brazil
dc.description.affiliationPontificial Catholic Univ São Paulo, Actuary & Quantitat Methods Dept, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Brazilian Cochrane Ctr, Urgency Med & Evidence Based Med Dept, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1186/1471-2458-8-151
dc.identifier.citationBmc Public Health. London: Biomed Central Ltd, v. 8, 8 p., 2008.
dc.identifier.doi10.1186/1471-2458-8-151
dc.identifier.fileWOS000256482400001.pdf
dc.identifier.issn1471-2458
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/30662
dc.identifier.wosWOS:000256482400001
dc.language.isoeng
dc.publisherBiomed Central Ltd
dc.relation.ispartofBmc Public Health
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titlePrevalence of high frequency hearing loss consistent with noise exposure among people working with sound systems and general population in Brazil: A cross-sectional studyen
dc.typeinfo:eu-repo/semantics/article
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