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Iranian Journal of Otorhinolaryngology، جلد ۲۴، شماره ۴، صفحات ۱۵۵-۱۶۰
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عنوان انگلیسی Hair Color and Hearing Loss: A Survey in a Group of Military Men
چکیده انگلیسی مقاله Introduction: It has been shown that low levels of pigmentation increase susceptibility to noise-induced hearing loss in humans. For this reason, white populations develop more pronounced noise- induced hearing loss in comparison to black populations. Similarly, blue-eyed individuals exhibit greater temporary threshold shift than brown-eyed subjects; still, no strong correlation has been verified between the lightness of hair color and susceptibility to noise-induced hearing loss. This study was performed with the purpose of investigating a possible association between hair color and the degree of hearing loss due to firing noise. Study Design: Prospective observational study. Setting: A tertiary referral center with an accredited otorhinolaryngology-head & neck surgery department. Materials and Methods: A total of 57 military recruits were divided into two groups; light-colored (blond and light brown) and dark-colored hair (dark brown and black). The two groups were matched based on history of firing noise exposure (number of rounds; type of weapon) and the level of hearing loss at 2, 3, 4, 6 and 8 kHz sound frequencies was compared between them. Results: The results showed that the mean level of hearing loss of light-colored hair individuals (20.5±17dB) was significantly greater than that of dark-haired subjects (13.5±11dB), (P=0.023). Conclusion: The results indicate that hair color (blond versus black) can be used as an index for predicting susceptibility to noise-induced hearing loss in military environments. Therefore, based on the individual's hair color, upgraded hearing conservation programs are highly recommended.
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نویسندگان مقاله امیر حسین قاضی زاده | amir hossain ghazizadeh
department of otorhinolaryngology, shahid beheshti university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

مهدی بخشایی | mehdi bakhshaee
ear, nose, throat, head and neck surgery research center, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

ابراهیم مهدوی | ebrahim mahdavi
audiologist, shahid beheshti university of medical sciences, tehran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

رحمان موحد | rahman movahhed
department of otorhinolaryngology, faculty of medicine, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

نشانی اینترنتی http://ijorl.mums.ac.ir/article_193.html
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