Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Int J Environ Res Public Health. 2020 Oct 31;17(21):8032. doi: 10.3390/ijerph17218032.
Occupational noise-induced hearing loss (ONIHL) is the most reported occupational disease in Malaysia. ONIHL is aggravated by the presence of early hearing loss amongst the youth prior to entering a real working environment. At technical and vocational education training (TVET) institutions, students may develop early ONIHL because training workshops are designed imitating the industrial working environment to produce skilled workers. The exceeding noise level at workshops and recent risk of non-occupational noise can cause early ONIHL among these students. Therefore, ONIHL must be addressed at the early stage of producing skilled workers. Octa hearing conservation index (OHCI) system is developed as a management and monitoring tool for hearing conservation program (HCP) in TVET institutions. Six existing and two new HCP components were used to build the index system. A pilot test on the effectiveness of the OHCI system was conducted in a selected TVET institution for six months. The post-HCP shows a 52.6% improvement compared to the pre-HCP. The implementation of HCP has shown improved awareness on the hazards of loud noise exposure and active use of hearing protection devices among participants. The OHCI system has a great potential as a tool to improve HCP implementation in TVET institutions, and eventually, industry.
职业性噪声聋（ONIHL）是马来西亚报告最多的职业病。在进入真正的工作环境之前，年轻人中存在早期听力损失，这加剧了 ONIHL 的发生。在技术和职业教育培训（TVET）机构中，由于培训车间的设计模仿工业工作环境以培养熟练工人，学生可能会发生早期 ONIHL。车间中超过噪声水平以及最近非职业性噪声的风险可能会导致这些学生发生早期 ONIHL。因此，必须在培养熟练工人的早期阶段解决 ONIHL 问题。八重听力保护指数（OHCI）系统是作为 TVET 机构听力保护计划（HCP）的管理和监测工具而开发的。该指数系统使用了现有的六个和新的两个 HCP 组成部分来构建。在选定的 TVET 机构中进行了为期六个月的 OHCI 系统有效性的试点测试。与 HCP 前相比，后 HCP 显示出 52.6%的改善。HCP 的实施表明，参与者对大声噪声暴露的危害的认识有所提高，并积极使用听力保护装置。OHCI 系统作为一种工具，具有很大的潜力，可以提高 TVET 机构乃至整个行业的 HCP 实施。
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