Noise-induced hearing loss in a longitudinal study of Norwegian railway workers
Noise-induced hearing loss in a longitudinal study of Norwegian railway workers
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DOI：
10.1136/bmjopen-2016-011923
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发表时间：
2016-01-01
期刊：
影响因子：
2.9
通讯作者：
Tambs, Kristian
中科院分区：
文献类型：
--
作者：
Lie, Arve;Skogstad, Marit;Tambs, Kristian
目的：本研究的目的是分析纵向数据，以评估挪威铁路工人噪声性听力损失（NIHL）的风险。设计：纵向。设置：一个主要的挪威铁路公司。方法：我们检查了1991年至2014年期间的第一次和最后一次听力图的数据，来自9640名铁路工人，不同的职业噪声暴露，平均观察期为10年。七组铁路工人听力的变化（火车司机、售票员、公共汽车司机、交通管制员、火车维修工人、轨道维修工人和其他）进行了相互比较，并与ISO标准进行了比较（ISO 1999）。结果：在观察期间，根据年龄和性别调整后，听阈的变化在0.5-4 kHz范围内为2-3 dB，在3-6 kHz范围内为6-7 dB，根据ISO 1999，这略低于预期（8 dB）。结论：在1991-2014年期间，挪威铁路工人的NIHL风险可以忽略不计。
Objective: The aim of this study was to analyse longitudinal data to assess the risk of noise-induced hearing loss (NIHL) in Norwegian railway workers.Design: Longitudinal.Setting: A major Norwegian railway company.Methods: We examined data from the first and last audiograms for the period 1991-2014, from 9640 railway workers with varying occupational noise exposure and with an average observation period of 10 years. The course of hearing acuity in seven groups of railway workers (train drivers, conductors, bus drivers, traffic controllers, train maintenance workers, track maintenance workers and others) were compared with each other and with ISO standards (ISO 1999).Results: The change in hearing threshold during the observation period was 2-3 dB in the 0.5-4 kHz range and 6-7 dB in the 3-6 kHz range adjusted for age and sex, for all occupational groups, which is slightly less than expected (8 dB) according to ISO 1999.Conclusions: The risk of NIHL in Norwegian railway workers during the period 1991-2014 has been negligible.