JC School of Public Health and Primary Care, The Chinese University of Hong Kong, School of Public Health Building, Prince of Wales Hospital, Sha Tin, Hong Kong Special Administrative Region, China.
School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
Sci Rep. 2022 Sep 9;12(1):15249. doi: 10.1038/s41598-022-19195-4.
There has been no validated tool to assess workplace infection control towards SARS-Cov-2 in non-healthcare industries. In this first year survey during 07/2020-04/2021, 6684 workers were recruited from varied non-healthcare settings of Hong Kong, Nanjing and Wuhan of China and responded standard questionnaires containing information of prevention measures and policies implemented by companies and personal preventive behaviour towards infection control. All participants were randomly stratified into two sub-samples as training and validation sample. Workplace safety index towards SARS-Cov-2 (WSI-SC2) was developed and validated using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). We identified 14 manifest variables in WSI-SC2, with three sub-indices named "Workplace infection control measures and prevention", "Company occupational safety and health management and commitment" and "Worker's personal preventive behavior and awareness towards infectious control". WSI-SC2 obtained a good internal consistency reliability (Cronbach's alpha coefficients ranged: 0.76-0.91), good composite reliability (composite reliability ranged: 0.70-0.95) and satisfactory fit of the model (GFI = 0.95; SRMR = 0.05; RMSEA = 0.07). We further performed stratified analysis according to cities, and the index remained stable. Workers with higher scores of WSI-SC2 were more likely to uptake COVID-19 test. This multi-city large study developed a novel and validated tool that could horizontally measure the workplace safety towards SARS-Cov-2 in non-healthcare workers.
目前还没有经过验证的工具可以评估非医疗保健行业对 SARS-CoV-2 的工作场所感染控制情况。在这项 2020 年 7 月至 2021 年 4 月进行的首次年度调查中，从香港、南京和武汉的不同非医疗保健场所招募了 6684 名工人，并对他们进行了标准问卷调查，内容包括公司实施的预防措施和政策以及个人预防感染控制的行为。所有参与者被随机分为两个子样本，作为培训和验证样本。使用探索性因素分析（EFA）和验证性因素分析（CFA）开发和验证了针对 SARS-CoV-2 的工作场所安全指数（WSI-SC2）。我们确定了 WSI-SC2 中的 14 个显式变量，分为三个子指数，分别是“工作场所感染控制措施和预防”、“公司职业安全与健康管理与承诺”和“工人对传染病控制的个人预防行为和意识”。WSI-SC2 具有良好的内部一致性可靠性（Cronbach's alpha 系数范围：0.76-0.91）、良好的综合可靠性（综合可靠性范围：0.70-0.95）和模型的良好拟合（GFI=0.95；SRMR=0.05；RMSEA=0.07）。我们进一步根据城市进行了分层分析，该指数保持稳定。WSI-SC2 得分较高的工人更有可能接受 COVID-19 检测。这项多城市大型研究开发了一种新颖且经过验证的工具，可以横向衡量非医疗保健工作者对 SARS-CoV-2 的工作场所安全性。
