Also the linear model finds “B+” important, at a 0.01 significance level, but doesn’t find the other features significant except for “Cardiovascular death rate” in June, while the overall multivariate linear model is highly significant with an R-squared ranging between 0.29 and 0.32 (see Table 5 ).
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Country-level factors dynamics and ABO/Rh blood groups contribution to COVID-19 mortality.
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