Table 5.
International trade factor as critical parameter of the spread of COVID 19 that outclasses economic, demographic, and environmental pollution factors.
| Average Bivariate Correlation from March 2020 to February 2021 | r | Significance (1-tailed) p-value |
|---|---|---|
| Import - export factor and confirmed cases | 0.78 | 0.01 |
| GDPPC and confirmed cases | 0.64 | 0.01 |
| Density of population and confirmed cases | 0.58 | 0.01 |
| Air pollution (PM 2.5) and confirmed cases | 0.49 | 0.01 |
| Average Partial Correlation from March 2020 to February 2021 | ||
| Controlling population density | ||
| Import - export factor and confirmed cases | 0.67 | 0.001 |
| GDPC and confirmed cases | 0.59 | 0.001 |
| Air pollution PM2.5 and confirmed cases | 0.38 | 0.001–0.01 |