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对煤矿井下接触噪声15年工龄以上的工人201人进行调查,非噪声职员52人为对照组,症状以耳聋、耳鸣、耳痛、神经衰弱综合症、记忆减退、头昏、多梦出现率较多。语频听力损失在壮年及老年噪声组分别为38.3％和40.6％。噪声组高血压总检出率为13.9％,眼底动脉硬化捡出率为28.4％,与对照组有显著差异。分析表明:异常临床表现和疾病与接触噪声的质量有关。
201 workers who experienced more than 15 years of working-level contact noise in underground coal mines were surveyed. Among them, 52 non-noise workers were the control group. The symptoms were deafness, tinnitus, earache, neurasthenic syndrome, memory loss, dizziness and more dreams . Audio frequency hearing loss was 38.3% and 40.6% respectively in the aged and senile noise groups. The total detection rate of hypertension in noise group was 13.9%, and the rate of fundus arteriosclerosis was 28.4%, which was significantly different from the control group. The analysis shows that abnormal clinical manifestations and diseases are related to the quality of contact noise.