Early Stage Machine Learning-Based Prediction of US County Vulnerability to the COVID-19 Pandemic: Machine Learning Approach.

JMIR Public Health Surveill · 2020 · PMC7490002 · PMID 32784193

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an increasing trendno p-value reported

Second, our analysis ( Multimedia Appendix 4 ) found that there is an increasing trend for the coefficient of variation (CV) for occurrences associated with positive-instance counties.

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