长期暴露于职业噪声环境的工人的标准及高频听力测定结果
[Findings of standard and high-frequency audiometry in workers exposed to occupational noise for long durations].
作者信息
Türkkahraman Sami, Gök Uzeyir, Karlidağ Turgut, Keleş Erol, Oztürk Ahmet
机构信息
Department of Otolaryngology, Kahramanmaraş State Hospital, Kahramanmaraş, Turkey.
出版信息
Kulak Burun Bogaz Ihtis Derg. 2003 Apr;10(4):137-42.
OBJECTIVES
Changes in hearing thresholds were determined by standard and high-frequency audiometry in subjects exposed to occupational noise for long durations.
PATIENTS AND METHODS
Hearing thresholds were measured between 250 and 16000 Hz frequencies by standard and high-frequency audiometry in 64 male workers (mean age 42 years; range 31 to 55 years) of a hydroelectric power plant and in 30 age- and sex-matched controls with no hearing problems. The workers were divided into three groups according to the noise level and into four groups according to the duration of exposure.
RESULTS
The mean hearing thresholds of workers showed significant increases in all frequencies from 4000 to 16000 Hz (p<0.005), the most affected frequencies being 4000, 6000, 14000, and 16000 Hz (p<0.0005). Increases in hearing thresholds were significantly correlated with the noise level and duration of exposure to noise (p<0.05).
CONCLUSION
The results suggest that high-frequency audiometry should be used together with standard audiometry in the detection and follow-up of individuals who are at potential risks for hearing losses.
目的
通过标准听力测定法和高频听力测定法，确定长期暴露于职业噪声环境中的受试者听力阈值的变化情况。
患者与方法
对某水力发电厂的64名男性工人（平均年龄42岁；年龄范围31至55岁）以及30名年龄和性别匹配、无听力问题的对照者，采用标准听力测定法和高频听力测定法，测量其在250至16000赫兹频率范围内的听力阈值。根据噪声水平将工人分为三组，根据暴露时长分为四组。
结果
工人的平均听力阈值在4000至16000赫兹的所有频率上均显著升高（p<0.005），受影响最大的频率为4000、6000、14000和16000赫兹（p<0.0005）。听力阈值的升高与噪声水平和噪声暴露时长显著相关（p<0.05）。
结论
结果表明，在对有听力损失潜在风险的个体进行检测和随访时，应将高频听力测定法与标准听力测定法结合使用。
Zotero 插件