@Article{info:doi/10.2196/28947，作者=“Piotto, Stefano and Di Biasi, Luigi and Marrafino, Francesco and Concilio, Simona”，标题=“利用公开接触者追踪数据评估流行病学风险:相关性研究”，期刊=“J Med Internet Res”，年=“2021”，月=“8”，日=“2”，卷=“23”，数=“8”，页=“e28947”，关键词=“SARS-CoV-2;COVID-19;接触者追踪;低功耗蓝牙;传播动力学;感染传播;移动应用;移动健康;数字应用;背景:在本世纪20年代，关于使用接触者追踪(CT)来遏制SARS-CoV-2大流行的可能性存在广泛争论，并提出了对数据安全和隐私的担忧。 Little has been said about the effectiveness of CT. In this paper, we present a real data analysis of a CT experiment that was conducted in Italy for 8 months and involved more than 100,000 CT app users. Objective: We aimed to discuss the technical and health aspects of using a centralized approach. We also aimed to show the correlation between the acquired contact data and the number of SARS-CoV-2--positive cases. Finally, we aimed to analyze CT data to define population behaviors and show the potential applications of real CT data. Methods: We collected, analyzed, and evaluated CT data on the duration, persistence, and frequency of contacts over several months of observation. A statistical test was conducted to determine whether there was a correlation between indices of behavior that were calculated from the data and the number of new SARS-CoV-2 infections in the population (new SARS-CoV-2--positive cases). Results: We found evidence of a correlation between a weighted measure of contacts and the number of new SARS-CoV-2--positive cases (Pearson coefficient=0.86), thereby paving the road to better and more accurate data analyses and spread predictions. Conclusions: Our data have been used to determine the most relevant epidemiological parameters and can be used to develop an agent-based system for simulating the effects of restrictions and vaccinations. Further, we demonstrated our system's ability to identify the physical locations where the probability of infection is the highest. All the data we collected are available to the scientific community for further analysis. ", issn="1438-8871", doi="10.2196/28947", url="//www.mybigtv.com/2021/8/e28947", url="https://doi.org/10.2196/28947", url="http://www.ncbi.nlm.nih.gov/pubmed/34227997" }