Takada Mirian Missae, Rocha Clayton Henrique, Neves-Lobo Ivone Ferreira, Moreira Renata Rodrigues, Samelli Alessandra Giannella
Curso de Fonoaudiologia, Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brazil.
Serviço de Audiologia, Hospital Universitário da Universidade de São Paulo (HU-USP), São Paulo, SP, Brazil.
Work. 2020;65(2):401-407. doi: 10.3233/WOR-203092.
Discrepancies between attenuation obtained in the laboratory and the field are caused by several factors associated with hearing protection devices (HPDs). The effects of some factors can be minimized with proper training provided to HPD users.
To evaluate the effectiveness of an educational intervention for improving the correct use of earplugs as HPDs in workers exposed to occupational noise by using the F-MIRE method and by comparing pre- and post-training attenuation values and pass/fail rates.
The personal attenuation ratings (PARs) of two types of earplugs were obtained (140 individuals) using E-A-Rfit™ equipment. Each HPD was evaluated under two scenarios: first after the user only read the packaging instructions, and then after the user read guidelines and participated in a training program. The results obtained were automatically classified by the software as "Approved" or "Failed".
There was a significant post-training increase in the binaural PAR values for both HPDs. The percentages of passes pre- and post-training showed that training users in the proper fit of the HPD was effective; both types had statistically significant differences.
This study found a statistically significant increase in PARs and the number of workers passing evaluations after HPD fit training, demonstrating the effectiveness of this educational intervention.
实验室与现场获得的衰减之间的差异是由与听力保护装置（HPD）相关的几个因素造成的。通过为HPD使用者提供适当培训，可以将一些因素的影响降至最低。
通过使用F-MIRE方法，并比较培训前后的衰减值和通过/未通过率，评估一项教育干预措施在改善职业噪声暴露工人正确使用耳塞作为HPD方面的有效性。
使用E-A-Rfit™设备获取了两种耳塞的个人衰减评级（PAR）（140人）。每个HPD在两种情况下进行评估：首先是在使用者仅阅读包装说明之后，然后是在使用者阅读指南并参加培训计划之后。软件自动将获得的结果分类为“通过”或“未通过”。
两种HPD的双耳PAR值在培训后均有显著增加。培训前后的通过率表明，对使用者进行HPD正确佩戴方面的培训是有效的；两种类型在统计学上均有显著差异。
本研究发现，在进行HPD佩戴培训后，PAR值和通过评估的工人数量在统计学上有显著增加，证明了这种教育干预措施的有效性。
