电源光谱密度和COVID-19死亡率的相似性分析波在不同国家
Elias Manjarrez1, Erick F Delfin1, Saul M Dominguez-Nicolas2,3
1Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, Colonia San Manuel, Apartado Postal 406, CP 72570, Puebla, Puebla, Mexico.
Heliyon
|August 22, 2024
概括
COVID-19死亡波发生在两个主要频率:大约每10.4个月和每4.4个月. 全球分析显示,这些流行病死亡率模式在各国之间存在显著的相似之处.
科学领域:
- 流行病学 流行病学
- 数据科学数据科学数据科学
- 公共卫生 公共卫生
背景情况:
- 由于COVID-19大流行,约翰霍普金斯大学CSE等机构创建了广泛的死亡数据集.
- 虽然记录了全球COVID-19死亡趋势,但缺乏详细的特定国家模式比较.
- 了解这些变异对于疫情应对和准备至关重要.
研究的目的:
- 分析多个国家的COVID-19死亡波的频率域.
- 用先进的分析技术量化国家之间死亡率模式的相似性和差异.
- 为了确定流行病引起的死亡率中反复出现的时间模式.
主要方法:
- 利用快速里埃转换 (FFT) 来计算COVID-19死亡数据的功率光谱密度 (PSD).
- 分析了来自199个国家的2020年1月至2023年3月的数据.
- 应用了共弦相似性分析来比较所有研究国家的PSD模式.
主要成果:
- 在全球COVID-19死亡率中确定了两个主要频率:一个周期大约每10.4个月 (1.15波/年),另一个周期每4.4个月 (2.7波/年).
- 同位数相似性分析表明,在各国的主导死亡波频率中,存在很高的相似性 (全球中位数指数为0.84).
- 相似性指数的分布显示出负偏差 (-0.54),表明死亡率波浪特征相似的一般趋势.
结论:
- 这项研究揭示了全球COVID-19死亡浪潮中一致的周期性模式.
- 这些发现为地球健康提供了宝贵的见解,有助于规划应对未来流行病的干预措施.
- 了解这些周期性可以为公共卫生策略的时间和部署提供信息,例如隔离措施.
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