The Institute for Occupational Health, Yonsei University College of Medicine, Seoul, Republic of Korea.
Graduate School of Public Health, Yonsei University College of Medicine, Seoul, Republic of Korea.
Ann Work Expo Health. 2017 Dec 15;62(1):41-52. doi: 10.1093/annweh/wxx089.
Most studies in the field of smoking exposure in the workplace linked to occupational safety have only focused on active smoking. Few studies have reported that exposure to second-hand smoke in the workplace is a possible factor increasing the risk of occupational injury without considering occupational characteristics. The aim of this study was to determine the association between occupational injury and level of exposure to second-hand smoke at the workplace among Korean workers, after taking into account occupational characteristics.
Using data from the third Korean Working Conditions Survey, levels of exposure to second-hand smoke were categorized as none, moderate, and high. We investigated the influence of exposure to second-hand smoke on occupational injury using logistic regression analysis with stratification by sex, smoking status, smoke-free policy in the workplace, and occupational characteristics. Occupational characteristics (occupational classification, working schedule, length of working day, and co-exposure to occupational hazards in the workplace) were stratified and analyzed using logistic regression models to estimate the risk of occupational injury linked to exposure to second-hand smoke.
Among all participants, there was a significant dose-dependent association between risk of occupational injury and level of exposure level to second-hand smoke. After stratification by sex and smoking status, there was a significant association between risk of occupational injury and exposure level to second-hand smoke. Moreover, there was a significant relationship between exposure to second-hand smoke in the workplace and occupational injury, depending on the smoking-free policy at workplace (odds ratio [OR] in completely non-smoking workplace, 4.23; OR in non-smoking workplace with separate smoking area, 2.98; OR in smoking workplace 2.84). Additionally, there was a significant relationship between risk of occupational injury and exposure to second-hand smoke after stratification by occupational classification, working schedule, long working hours, and co-exposure to hazards in the workplace.
There was a dose-response relationship between occupational injury and exposure to second-hand smoke, even after stratification to reduce the impact of various potential confounders and after taking into account occupational characteristics. These findings provide greater insight into the effects of exposure to second-hand smoke on the working population and may direct further research and policy-making in this field.
大多数关于工作场所吸烟暴露与职业安全相关的研究仅关注主动吸烟。很少有研究报告称，工作场所接触二手烟是增加职业伤害风险的一个可能因素，而没有考虑到职业特征。本研究旨在考虑职业特征后，确定韩国工人工作场所二手烟暴露水平与职业伤害之间的关系。
使用第三次韩国工作条件调查的数据，将二手烟暴露水平分为无、中度和高度。我们使用逻辑回归分析，按性别、吸烟状况、工作场所无烟政策和职业特征进行分层，调查了二手烟暴露对职业伤害的影响。职业特征（职业分类、工作时间表、工作天数和工作场所职业危害共暴露）通过逻辑回归模型分层分析，以估计与二手烟暴露相关的职业伤害风险。
在所有参与者中，职业伤害风险与二手烟暴露水平之间存在显著的剂量依赖性关联。按性别和吸烟状况分层后，职业伤害风险与二手烟暴露水平之间存在显著关联。此外，工作场所二手烟暴露与职业伤害之间存在显著关系，这取决于工作场所的无烟政策（完全无烟工作场所的比值比[OR]为 4.23；设有单独吸烟区的无烟工作场所的 OR 为 2.98；吸烟工作场所的 OR 为 2.84）。此外，按职业分类、工作时间表、工作时间长和工作场所职业危害共暴露进行分层后，职业伤害风险与二手烟暴露之间也存在显著关系。
即使在分层以减少各种潜在混杂因素的影响并考虑职业特征后，职业伤害与二手烟暴露之间仍存在剂量反应关系。这些发现为了解二手烟暴露对工作人群的影响提供了更深入的认识，并可能为该领域的进一步研究和决策提供指导。
