Celik O, Yalçin S, Oztürk A
Department of Otorhinolaryngology, Medical School, Firat University, Elaziğ, Turkey.
Auris Nasus Larynx. 1998 Dec;25(4):369-75. doi: 10.1016/s0385-8146(98)00036-4.
This paper presents the results of a study carried out in a group of noise-exposed workers in a hydro-electric power plant. Thus, the main focus of the study is on 130 industrial workers who were exposed to high level of noise. The control group was consisted of 33 subjects with normal hearing. Hearing and acoustic reflex thresholds were obtained from all subjects and the results from age-matched subgroups were compared. The sensorineural hearing loss which were detected in 71 workers were bilateral, symmetrical and affected mainly frequencies of 4-6 kHz. In essence, the hearing losses were developed within the first 10 years of noise exposure and associated with slight progress in the following years. When acoustic reflex thresholds derived from the study and control groups were compared, statistically significant difference was determined only for the thresholds obtained at 4 kHz (p < 0.0005).
本文介绍了对某水力发电厂一组接触噪声工人进行的一项研究结果。因此，该研究的主要重点是130名接触高强度噪声的产业工人。对照组由33名听力正常的受试者组成。获取了所有受试者的听力和声反射阈值，并比较了年龄匹配亚组的结果。在71名工人中检测到的感音神经性听力损失是双侧对称的，主要影响4 - 6千赫的频率。本质上，听力损失在接触噪声的头10年内出现，并在随后几年有轻微进展。当比较研究组和对照组得出的声反射阈值时，仅在4千赫处获得的阈值有统计学显著差异（p < 0.0005）。
