谢红卫, 唐仕川, 周莉芳, 全长健, 张美辨. 非稳态噪声累积暴露量与听力损失的关系[J]. 环境与职业医学, 2015, 32(1): 56-60. DOI: 10.13213/j.cnki.jeom.2015.14134
引用本文: 谢红卫, 唐仕川, 周莉芳, 全长健, 张美辨. 非稳态噪声累积暴露量与听力损失的关系[J]. 环境与职业医学, 2015, 32(1): 56-60. DOI: 10.13213/j.cnki.jeom.2015.14134
XIE Hong-wei , TANG Shi-chuan , ZHOU Li-Fang , QUAN Chang-jian , ZHANG Mei-bian . Relationship between Cumulative Noise Exposure and Human Hearing Loss Caused by Non-stationary Noise[J]. Journal of Environmental and Occupational Medicine, 2015, 32(1): 56-60. DOI: 10.13213/j.cnki.jeom.2015.14134
Citation: XIE Hong-wei , TANG Shi-chuan , ZHOU Li-Fang , QUAN Chang-jian , ZHANG Mei-bian . Relationship between Cumulative Noise Exposure and Human Hearing Loss Caused by Non-stationary Noise[J]. Journal of Environmental and Occupational Medicine, 2015, 32(1): 56-60. DOI: 10.13213/j.cnki.jeom.2015.14134

非稳态噪声累积暴露量与听力损失的关系

Relationship between Cumulative Noise Exposure and Human Hearing Loss Caused by Non-stationary Noise

  • 摘要: 目的 分析基于个体噪声8 h等效连续A声级(LAeq.8h)(暴露水平)的累积噪声暴露量(cumulation noise exposure,CNELAeq.8h)与非稳态噪声所致听力损失的关系,探讨CNELAeq.8h能否有效评估非稳态噪声接触水平。

    方法 选择轧钢厂和钢结构厂98名接触非稳态噪声工人为研究对象。采用个人声暴露计测量工人LAeq.8h,并与接触噪声工龄合并计算CNELAeq.8h,同时对工人进行问卷调查和听力测试。

    结果 经噪声分层分析和趋势卡方检验,高频听力损失检出率随CNELAeq.8h的增加而升高;经logistic回归分析,CNELAeq.8h是工人高频听力损失和语频听力损失的危险因素,OR值分别为1.261和1.109(P<0.01)。CNELAeq.8h、LAeq.8h、工龄、高频、语频听力程度之间均呈明显相关(P<0.01);经多因素回归分析,CNELAeq.8h进入高频听力损失的多因素回归模型(P<0.01)。

    结论 CNELAeq.8h与工人高频听力损失呈良好剂量-效应关系,能有效评估非稳态噪声接触水平。

     

    Abstract: Objective To examine the relationship between cumulative noise exposure (CNELAeq.8h) based on individual noise level (8 h equivalent continuous sound level, LAeq.8h) and human hearing loss caused by non-stationary noise, and to explore the effectiveness of CNELAeq.8h to assess the non-stationary noise exposure levels.

    Methods Workers (n=98) exposed to nonstationary noise from a steel mill and a steel structure factory were selected as the study subjects. Personal LAeq.8h was determined by a noise dosimeter. CNELAeq.8h was calculated from LAeq.8h and related working age. Meanwhile, questionnaires and hearing loss tests were performed for all subjects.

    Results The results of stratified analysis for noise level and trend Chi-square test showed that the detection rate of high-frequency hearing loss increased with CNELAeq.8h levels (P<0.01). The results of logistic regression analysis showed that CNELAeq.8h was a risk factor for high-frequency and low-frequency hearing loss in selected workers, and the OR values were 1.261 and 1.109 respectively. There were significant correlations among CNELAeq.8h, LAeq.8h, working age, high-frequency hearing lo ss and low-frequency hearing loss. The results of linear regression analysis showed that CNELAeq.8h entered the regression model of high-frequency hearing loss (P<0.01).

    Conclusion There is a good dose-effect relationship between CNELAeq.8h and highfrequency hearing loss. CNELAeq.8h may be used to assess the level of non-stationary noise exposure.

     

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