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arXiv 2003.10442q-bio.PEstat.APstat.ME
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探索R0的细微差别:8种估计方法及其在2009年流感大流行中的应用

Exploring the nuances of R0: Eight estimates and application to 2009 pandemic influenza

Shannon Gallagher, Andersen Chang, William F. Eddy

摘要:

近一个世纪以来,初始繁殖数(R0)一直被用作比较传染病爆发的一个数字摘要,但R0没有“标准”估计数。估计R0的困难来自疾病如何通过人群传播以及统计估计方法的差异。我们描述了八种用于估计R0的方法,并提供了一个全面的模拟研究,这些估计如何在不同的疾病参数的存在下发生变化。作为动机,我们分析了2009年在美国爆发的H1N1大流行性流感,并将我们的八种方法的结果与以前的研究进行了比较。我们讨论了影响R0估计的最重要的方面,其中包括人口规模,使用的时间段,和感染性个体的初始百分比。此外,我们还讨论了预处理发生率计数如何影响R0的估计。最后,我们提供了估计点估计和置信区间的指导方针,以创建可靠的,可比较的R0估计。

英文摘要:

For nearly a century, the initial reproduction number (R0) has been used as a one number summary to compare outbreaks of infectious disease, yet there is no `standard' estimator for R0. Difficulties in estimating R0 arise both from how a disease transmits through a population as well as from differences in statistical estimation method. We describe eight methods used to estimate R0 and provide a thorough simulation study of how these estimates change in the presence of different disease parameters. As motivation, we analyze the 2009 outbreak of the H1N1 pandemic influenza in the USA and compare the results from our eight methods to a previous study. We discuss the most important aspects from our results which effect the estimation of R0, which include the population size, time period used, and the initial percent of infectious individuals. Additionally, we discuss how pre-processing incidence counts may effect estimates of R0. Finally, we provide guidelines for estimating point estimates and confidence intervals to create reliable, comparable estimates of R0.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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