Table 2.
Correlation results of COVID-19 and EPs.
| COVID-19 | Correlation | t-value | p-value |
|---|---|---|---|
| WOP | 0.224 | 4.164∗∗∗ | 0.000 |
| BOP | 0.295 | 5.591∗∗∗ | 0.000 |
| NGP | 0.4.84 | 9.889∗∗∗ | 0.000 |
| HOP | 0.134 | 2.457∗∗∗ | 0.000 |
Note: ∗∗∗ denotes the significance level at 1%.
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