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职业噪音暴露与正常听力年轻工人的扩展高频听力损失的关联

Panqi Xue¹, Wulan Zhao², Xiangjing Gao¹

¹Occupational Health and Radiation Protection Institute, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang, China.

Ear and hearing

|December 27, 2024

概括

扩展高频 (EHF) 听力损失比传统测试对职业噪音暴露更为敏感. 库尔托斯调整的累积噪声暴露 (CNE-K) 有效地评估了噪音较大的工作场所的EHF听力损失风险.

科学领域:

职业健康职业健康职业健康
听力学听力学是指听力学.
环境健康环境健康

背景情况:

职业噪音暴露是导致听力损失的重要危险因素.
关于职业噪音和扩展高频 (EHF) 听力损失之间的关系的研究有限.
对噪音引起的听力损失的早期发现和预防策略至关重要.

研究的目的:

调查职业噪音暴露与EHF听力损失之间的关联.
评价噪声暴露指标,包括声压水平,暴露时间和kurtosis.
为早期检测和预防暴露于噪音的工人的听力损失提供基础.

主要方法:

一项对602名参与者进行的横截面调查 (472名受噪声影响,130名对照).
在常规 (0.258 kHz) 和高频 (916 kHz) 频率上收集的听力值.
使用线性混合效应模型的LAeq,8h,CNE和CNE-K分析了噪声暴露.

主要成果:

暴露于噪音的工人显示出明显更高的EHF听力值 (p < 0.05).
在80-85dBA之间的噪音暴露中,EHF听力损失最为突出.
CNE-K指标与EHF听力值有显著的关联 (p < 0.05).

结论:

对于早期检测职业噪音引起的听力损失,EHF听力值测试比传统听力测试更为敏感.
CNE-K是评估EHF听力损失风险的全面和有效指标.
研究结果支持加强预防噪音工作环境中听力损失的策略.

关键词:

复杂的噪声是一种复杂的噪声.累计暴露于噪音的影响.扩展高频听力测量扩展高频听力测量库尔托斯 (Kurtosis) 是一种形体.噪音引起的听力损失职业噪音暴露的情况

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Hearing

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

Perception of Sound Waves

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...