Advances in consistency and periodicity across major global CO VID-19 data sources
Using rigorous methods to identify and interpret the consistency and periodicity of multi-source COVID-19 epidemic data is the basis of properly interpreting the epidemic characteristics of the COVID-19 epidemic and developing prevention and control measures.By conducting a systematic review,we found that:(1)the existing literature on consistency studies mainly focused on global COVID-19 epidemic data released by the WHO and Johns Hopkins University,revealing inconsistent across various aspects of data collection,statistical indicators,data sharing,as well as the value of the same indicators;(2)each kind COVID-19 epidemic data had typical periodicity.Existing studies about periodicity of COVID-19 epidemic data were primarily from developed countries.The length of epidemic periodicity varied greatly across countries and regions,with a varying periodicity of 3.5 days,5.0 days,7.0 days,and 62.0 days.Researchers linked the periodicity of COVID-19 epidemic to multiple factors,including sample testing,data reporting,biological,social,and environmental factors.To summarize,there were no studies that quantified the consistency across major COVID-19 data sources,examined differences in data consistency over time and across countries,and explored the periodicity variations of COVID-19 epidemic across countries around the world currently.
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