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KMID : 0381319970360020053
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Korean Journal of Occupational Health
1997 Volume.36 No. 2 p.53 ~ p.58
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The Effect of Hearing Thresholds According to Audiocup Enclosures for Audiometry
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Abstract
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This study was conducted to evaluate hearing thresholds according to wearing audiocups. The subjects were composed of white-collar workers of a non-noise exposed population for general health examination and healthy persons for multiphasic health examination in hospital of university. Using self-recording questionnaire method, general characteristics, past or present noisy job, past illness history, past military service, present upper respiratory tract infection and taking ototoxic drug use were obtained. Then they were examined otoscopic test and audiometry of 1,000 ㎐ and 4,000 ㎐ in the soundproof booth.
The collected data excluded factors influencing hearing were analysed according to wearing audiocups for 186 subjects in 20-59 years of age and some major results are as follows:
1. Hearing thresholds of group with audiocups were slightly decreased than that of group without audiocups in all years of age for 1000 ㎐.
2. Hearing thresholds of group with audiocups were significantly decreased than that of group without audiocups in 20-29, 40-49 years of age for 4000 ㎐. In 30-39, 50-59 years of age, it was not significant differences between two groups due to small numbers of subjects.
In conclusion, it suggests that the audiometry wearing audiocups are more accurate because these are the most applicable to excess noise problems in testing areas. Therefore, that will reduce numbers of persons who should take the close examination and prevent the worker from wasting work times and also reduce costs of examination.
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