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Type: Artigo de periódico
Title: Iris Pigmentation And Susceptibility To Noise-induced Hearing Loss.
Author: Da Costa, E A
Castro, J C
Macedo, M E G
Abstract: The purpose of this retrospective study is to examine the possible association between iris pigmentation and susceptibility to noise-induced hearing loss in 2407 noise-exposed workers. The workers were between 16 to 65 years of age and were exposed to 2 to 42 years of work-related noise. Results demonstrated that dark-eyed workers presented a greater percentage of normal pure-tone thresholds than fair-eyed workers. Fair-eyed workers had threshold averages of 25.1 dB (right ear) and 26.0 dB (left ear) at 3, 4, and 6 kHz, which were significantly worse than workers with dark irises, with threshold averages of 15.8 dB and 17.2 dB in the right and left ear, respectively (p<0.01). Fair-eyed workers with less than 10 years of noise exposure had the same audiometric pattern as the dark-eyed workers exposed for more than 10 years. Workers not exposed to noise did not present significant differences in their audiometric pattern as a function of eye colour. These results suggest that iris pigmentation may be an additional indication of susceptibility to noise-induced hearing loss.
Subject: Adolescent
Audiometry, Pure-tone
Biological Markers
Cross-sectional Studies
Disease Susceptibility
Hearing Loss, Noise-induced
Middle Aged
Noise, Occupational
Occupational Exposure
Pigment Epithelium Of Eye
Retrospective Studies
Time Factors
Citation: International Journal Of Audiology. v. 47, n. 3, p. 115-8, 2008-Mar.
Rights: fechado
Identifier DOI: 10.1080/14992020701704776
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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