Yoon Jin-Ha, Hong Jeong-Suk, Roh Jaehoon, Kim Chi-Nyon, Won Jong-Uk
The Institute for Occupational Health; Department of Preventive Medicine; Graduate School of Public Health, Yonsei University College of Medicine, Seoul, Korea.
Noise Health. 2015 Jan-Feb;17(74):43-7. doi: 10.4103/1463-1741.149578.
Many workers worldwide experience fatality and disability caused by occupational injuries. This study examined the relationship between noise exposure and occupational injuries at factories in Korea. A total of 1790 factories located in northern Gyeonggi Province, Korea was evaluated. The time-weighted average levels of dust and noise exposure were taken from Workplace Exposure Assessment data. Apart occupational injuries, sports events, traffic accidents, and other accidents occurring outside workplaces were excluded. The incidences of occupational injury in each factory were calculated by data from the Korea Workers' Compensation and Welfare Services. Workplaces were classified according to the incidence of any occupational injuries (incident or nonincident workplaces, respectively). Workplace dust exposure was classified as <1 or ≥ 1 mg/m³ , and noise exposure as <80, 80-89, or >90 dB. Workplaces with high noise exposure were significantly associated with being incident workplaces, whereas workplaces with high dust exposure were not. The odds ratios (95% confidence intervals) derived from a logistic regression model were 1.68 (1.27-2.24) and 3.42 (2.26-5.17) at 80-89 dB and ≥ 90 dB versus <80 dB. These associations remained significant when in a separate analysis according to high or low dust exposure level. Noise exposure increases the risk of occupational injury in the workplace. Furthermore, the risk of occupational injury increases with noise exposure level in a dose-response relationship. Therefore, strategies for reducing noise exposure level are required to decrease the risk of occupational injury.
全球许多工人都经历过因职业伤害导致的死亡和残疾。本研究调查了韩国工厂噪声暴露与职业伤害之间的关系。对韩国京畿道北部的1790家工厂进行了评估。粉尘和噪声暴露的时间加权平均水平取自工作场所暴露评估数据。除职业伤害外，体育赛事、交通事故和工作场所以外发生的其他事故均被排除。各工厂的职业伤害发生率根据韩国工人赔偿和福利服务的数据计算得出。工作场所根据是否发生任何职业伤害分为事故工作场所或非事故工作场所。工作场所的粉尘暴露分为<1或≥1毫克/立方米，噪声暴露分为<80、80 - 89或>90分贝。高噪声暴露的工作场所与事故工作场所显著相关，而高粉尘暴露的工作场所则不然。逻辑回归模型得出的比值比（95%置信区间）在80 - 89分贝和≥90分贝时分别为1.68（1.27 - 2.24）和3.42（2.26 - 5.17），与<80分贝相比。在根据高或低粉尘暴露水平进行的单独分析中，这些关联仍然显著。噪声暴露会增加工作场所职业伤害的风险。此外，职业伤害风险随着噪声暴露水平呈剂量反应关系增加。因此，需要采取降低噪声暴露水平的策略来降低职业伤害风险。
