tors associated with the Noise-induced Hearing Loss of Car Wash Workers in Bangkhae area, Bangkok
Keywords:
noise-induced hearing loss , car wash worker , audiometry test , noiseAbstract
This cross-sectional study aimed to assess the factors related to Noise-Induced Hearing Loss (NIHL) among car wash workers in the Bangkhae area, Bangkok. A sample of 44 car wash workers was recruited using Convenience sampling. The research tools were the personal and work history interview questionnaire, audiometry test, and noise dosimeter measurement. Descriptive statistics and the chi-square test were used for data analysis.
The study showed that the car wash workers were exposed to eight-hour time-weighted average sound levels ranging from 82.3 - 89.6 dB(A). The prevalence of NIHL for low-frequency (500-3,000 Hz) and high-frequency (4,000-8,000 Hz) was 70.5 and 77.3 percent, respectively. By assessing the relationships, the result showed that the work duration was significantly associated with NIHL (p<.001). While other factors, including age, sex, work experience, and personal protective equipment use, were not associated with NIHL. Therefore, the results of this study may direct people who run a car wash business and employees in formulating health guidelines to prevent occupational hearing loss. Moreover, audiometry tests should be performed annually.
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