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Year : 2014  |  Volume : 16  |  Issue : 72  |  Page : 331--341

Hearing and loud music exposure in a group of adolescents at the ages of 14-15 and retested at 17-18


1 Centre for Research and Transfer in Acoustics (CINTRA), Unit Associated of CONICET, National Technological University (UTN), Cordoba Regional Faculty, Cordoba, Argentina
2 High Otorhinolaryngological Technology Center, Forming Center for Otorhinolaryngology Specialists, Cordoba, Argentina
3 Institute of Statistics and Demography, National University of Cordoba, Cordoba, Argentina

Correspondence Address:
Dr. Ester C Biassoni
National Technological University, Cordoba Regional Faculty, Argentina, Maestro. M. Lopez esq. Cruz Roja Argentina, 5016 Cordoba
Argentina
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Source of Support: National Agency for Scientifi c and Technologic Promotion, National Technical University and National Scientifi c and Technical Research Council, Argentina., Conflict of Interest: None


DOI: 10.4103/1463-1741.140515

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Young people expose themselves to potentially damaging loud sounds while leisure activities and noise induced hearing loss is diagnosed in increasing number of adolescents. Hearing and music exposure in a group of adolescents of a technical high school was assessed at the ages of: 14-15 (test) and 17-18 (retest). The aims of the current study were: (1) To compare the auditory function between test and retest; (2) to compare the musical exposure levels during recreational activities in test and retest; (3) to compare the auditory function with the musical exposure along time in a subgroup of adolescents. The participants in the test were 172 male; in the retest, this number was reduced to 59. At the test and retest the conventional and extended high frequency audiometry, transient evoked otoacoustic emissions (TEOAEs) and recreational habits questionnaire were performed. In the test, hearing threshold levels (HTLs) were classified as: Normal (Group 1), slightly shifted (Group 2), and significantly shifted (Group 3); the Musical General Exposure (MGE), categorized in: Low, moderate, high, and very high exposure. The results revealed a significant difference (P < 0.0001) between test and retest in the HTL and global amplitude of TEOAEs in Group 1, showing an increase of the HTL and a decrease TEOAEs amplitude. A subgroup of adolescents, with normal hearing and low exposure to music in the test, showed an increase of the HTL according with the categories of MGE in the retest. To implement educational programs for assessing hearing function, ear vulnerability and to promote hearing health, would be advisable.






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