Solecki Leszek, Horoch Andrzej
Zakładu Fizycznych Szkodliwości Zawodowych, Instytutu Medycyny Wsi im. W. Chodźki w Lublinie.
Med Pr. 2002;53(4):299-305.
The studies of the state of hearing were conducted among a selected group of 128 farmers, aged 28-65 years with employment ranging from 11 to 40 years. The study design covered physical laryngologic examinations, detailed otologic medical history and proper audiometric tests (air and bone conduction). The results of the study showed that the highest mean values of hearing loss remained mostly within two high frequencies of 4 and 6 kHz and were 34.9-39.7 d B. These frequencies are typical of acoustic trauma. A highly statistically significant correlation (p < 0.001) was observed between hearing loss and age (r = 0.32-0.53 for 3-8 kHz), while a slightly weaker correlation was noted between hearing loss and employment duration (r = 0.20-0.27 for 3-8 kHz; p < 0.01). The mean values of hearing loss obtained among farmers were considerably enhanced, compared to the control group (42 people aged 29-59 years), the difference being very high statistically (p < 0.001). The studies of the state of private farmers' hearing clearly confirm the hypothesis that an excessive exposure to noise present in the farming equipment, is the major cause of the decreased hearing among farmers.
对128名年龄在28至65岁之间、工作年限在11至40年的农民进行了听力状况研究。研究设计包括物理喉镜检查、详细的耳科病史和适当的听力测试（气导和骨导）。研究结果表明，听力损失的最高平均值大多在4 kHz和6 kHz这两个高频范围内，为34.9 - 39.7 dB。这些频率是声创伤的典型频率。在听力损失与年龄之间观察到高度统计学显著相关性（p < 0.001）（3至8 kHz时r = 0.32 - 0.53），而在听力损失与工作年限之间观察到的相关性稍弱（3至8 kHz时r = 0.20 - 0.27；p < 0.01）。与对照组（42名年龄在29至59岁之间的人）相比，农民中获得的听力损失平均值显著提高，差异具有高度统计学意义（p < 0.001）。对个体农民听力状况的研究清楚地证实了这一假设，即过度暴露于农业设备中的噪音是农民听力下降的主要原因。
