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The prevalence of hearing impairment in music group of Islamic Republic of Iran Air Force
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M Berenji   , K Alizadeh , MH Shahbazi , AR Mehriari |
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Abstract: (4782 Views) |
| Background: Music groups of army are often exposed to more than 85 decibels voices which is defined as sound pollution. However, there are not any use of hearing protections in this group. Because there was not accurate information about the prevalence of hearing problems in the music group, the purpose of this study was to survey the prevalence of hearing impairment and its types among music group of IRI Air Force.
Materials and methods: In this descriptive observational study, hearing condition of all personnel of music group who enrolled the study, was evaluated by pure tone audiometry and acquired information along with age and employment date of them were entered the computer and analyzed by SPSS Software.
Results: Of 71 personnel of music group, 24 (34.3%) had hearing impairments. Also there was not any significant relationship between duration of employment and hearing impairment. The most common problem was mild disorder in hearing threshold levels (HTL) (62.5%), followed by mild disorder in the middle frequencies (33.3%), moderate disorder in HTL (4.1%), severe disorder in HTL (4.1%) and air-bone gap (4.1%).
Conclusion: Hearing disorders due to noise in army music group is the same as other noisy jobs. This can indicate the need of noise protection devices and periodical checkups for prevention of this disorder. |
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| Keywords: Voice pollution, hearing threshold level, pure tone audiometry |
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Full-Text [PDF 258 kb]
(1621 Downloads)
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Type of Study: Original |
Received: 2014/09/7 | Accepted: 2014/09/7 | Published: 2014/09/7
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