Department of Cardiologic, Vascular and Thoracic Sciences, and Public Health, University of Padova, Padova, Italy.
Department of Biomedical Sciences, University of Padova, Padova, Italy.
Int J Public Health. 2021 Aug 18;66:1604076. doi: 10.3389/ijph.2021.1604076. eCollection 2021.
Benefits of school attendance have been debated against SARS-CoV-2 contagion risks. This study examined the trends of contagion before and after schools reopened across 26 countries in the European Union. We compared the average values of estimated before and after school reopening, identifying any significant increase with a one-sample -test. A meta-analysis and meta-regression analysis were performed to calculate the overall increase in for countries in the EU and to search for relationships between before schools reopened and the average increase in afterward. The mean reproduction number increased in 16 out of 26 countries. The maximum increase in was reached after a mean 28 days. We found a negative relationship between the before school reopening and its increasing after that event. By 45 days after the first day of school reopening, the overall average increase in for the European Union was 23%. We observed a significant increase in the mean reproduction number in most European countries, a public health issue that needs strategies to contain the spread of COVID-19.
学校出勤率的好处一直是与 SARS-CoV-2 感染风险相权衡的话题。本研究考察了 26 个欧盟国家在学校重新开放前后的感染趋势。我们比较了学校重新开放前后估计的 的平均值，通过单样本检验确定是否有显著增加。进行了荟萃分析和荟萃回归分析，以计算欧盟国家整体的 增加，并探索学校重新开放前的 与之后的平均增加之间的关系。在 26 个国家中有 16 个国家的繁殖数均值增加。 的最大增幅出现在平均 28 天后。我们发现学校重新开放前的 与之后的增加呈负相关。在学校重新开放后的第 45 天，欧盟的整体平均 增加了 23%。我们观察到大多数欧洲国家的繁殖数均值显著增加，这是一个需要采取策略来控制 COVID-19 传播的公共卫生问题。
