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脉冲与稳态噪声引起工人听力损伤的差异
引用本文:丁茂平,赵一鸣.脉冲与稳态噪声引起工人听力损伤的差异[J].中华劳动卫生职业病杂志,1995,13(2):72-74.
作者姓名:丁茂平  赵一鸣
作者单位:辽宁省劳动卫生研究所,北京医科大学第三临床医学院,鞍山市职业病防治院,沈阳市劳动卫生监督监测所
摘    要:对接触脉冲噪声和稳态噪声的771名工人调查发现,年龄性别校正后的高频听力损伤患病率为60.4%、语频为5.4%。听力损伤患病率随噪声暴露的剂量增大而升高,有剂量—反应关系。接触脉冲噪声工人的高频听力损伤患病率(62.4%,345/553)高于稳态噪声(55.5%,121/218),但无显著差异;而语频听力损伤患病率(6.7%,37/553)明显高于稳态噪声(2.3%,5/218)。脉冲噪声引起的听力损伤曲线出现左移,表明它对听觉系统的危险性高于稳态噪声。

关 键 词:噪声  听力损伤  脉冲噪声  稳态噪声  语频听力损伤

DIFFERENCES OF NOISE INDUCED HEARING LOSS BETWEEN IMPULSE NOlSE AND CONTINUOUS STEADY STATE NOISE EXPOSURE WORKERS
Abstract:n this study 77l workers expoxed to impulse noise or continuous steady statc noise were investigated. The prevalence of highfrequency noise induced hearing loss(NIHL)was 60.4%and that of low frequency NIHL,5.4%. Dose-response reationship be-tween cumulative noise exposure(CNE)and NIHL could be found. The prevalence of high frequency NIHL in impulse noise expo-sure group was higher than that in continuous noise exposure group(62.4%vs 55.5%,P=0.093).The prevalence of low fre-quency NIHL in impulse noise exposure group was also higher than that in continuous noise exposure group(6.7%vs 2.3%,P<0.05).predicted logistic regression curves showed that there was a left shift of probability in impulse noise exposure group.Theseresults suggested that impulse noise exposure was more dangerous than continuous noise exposure for NIHL.
Keywords:Continuous steady state noise exposure    High  low frequency noise induced hearig loss Logstic regression    model Impulse noise    exposure  
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