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Amplified music exposure carries risks to hearing

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Publication date: February 2017
Source:International Journal of Pediatric Otorhinolaryngology, Volume 93
Author(s): Valéria Gomes da Silva, Carlos Augusto Costa Pires de Oliveira, Pedro Luíz Tauil, Isabella Monteiro de Castro Silva, André Luiz Lopes Sampaio
ObjectiveTo investigate the association between changes in the outer hair cells and exposure to amplified music in a group of high-school students.Materials and methodsIn this retrospective, case-control study, 86 subjects underwent audiometry, immittance audiometry, and distortion-product otoacoustic emission tests. The subjects were questioned about their listening habits and divided into 2 groups: exposed and unexposed.ResultsMost of the subjects had reduced function in their outer hair cells, mainly beginning at 8 kHz. Among 60 subjects—30 cases and 30 controls—75% were considered exposed and 25% unexposed. The exposed subjects were 9.33 times more likely to have altered outer hair cells than the unexposed subjects were.ConclusionExposure to amplified music is associated with reduced function in the hair cells.



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