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目的分析煤矿井下噪声作业协议工的听力特点。方法以463名煤矿井下噪声作业协议工为研究组,同期同单位400名非协议工为对照组,分别进行常频纯音测听,结果用SPSS 18软件进行分析。结果研究组听力损伤发生率为76.9%,其中高频全部异常,观察对象为21.2%;语频听力损伤发生率为11.7%,噪声性耳聋为1.1%,以上数值均高于对照组。听力损伤多发生在6~10年工龄段,发病工龄短于对照组。结论煤矿井下噪声作业协议工听力损伤发生率高,发病工龄短,需要引起高度重视。
Objective To analyze the hearing characteristics of underground mine noise protocol workers. Methods A total of 463 non-protocol noise workers working in the coal mine were selected as the research group. In the same period, 400 non-protocol workers were employed as the control group, and their frequencies were measured by pure frequency audiometry. The results were analyzed by SPSS 18 software. Results The incidence of hearing loss was 76.9% in the study group, of which all the abnormalities were observed in 21.2% of HF patients. The frequency of hearing loss was 11.7% and noise-induced hearing loss was 1.1%. The above values were all higher than those of the control group. Hearing impairment occurred in 6 to 10 years of age, length of service shorter than the control group. Conclusion There is a high incidence of hearing impairment in coal mine underground noise protocol and a short length of service, which needs great attention.