Table 4.
Parameter estimates of linear part of the generalized additive model comparing the relationships among different environmental (temperature, humidity, and dew) and air quality variables (PM10, CO, and SO2) and number of COVID-19 infected cases and deaths.
| COVID-19 Infected cases | |||||
|---|---|---|---|---|---|
| Parameter | DF | Estimate | Std Error | Chi-Square | Pr > ChiSq | 
| Intercept | 1 | 1.800386 | 0.366437 | 24.1398 | <.0001 | 
| EWMA Temperature | 1 | 0.129529 | 0.011394 | 129.2402 | <.0001 | 
| EWMA Humidity | 1 | −0.047913 | 0.003344 | 205.3080 | <.0001 | 
| Dew | 1 | 0.003322 | 0.000584 | 32.3571 | <.0001 | 
| PM10 | 1 | −0.001137 | 0.000125 | 82.9433 | <.0001 | 
| CO | 1 | 0.022512 | 0.000762 | 872.2004 | <.0001 | 
| SO2 | 1 | 0.083384 | 0.001344 | 3848.2284 | <.0001 | 
| COVID-19 Deaths | |||||
| Intercept | 1 | −5.041431 | 0.857154 | 34.5931 | <.0001 | 
| EWMA Temperature | 1 | −0.195671 | 0.016950 | 133.2640 | <.0001 | 
| EWMA Humidity | 1 | 0.336855 | 0.018297 | 338.9497 | <.0001 | 
| dew | 1 | 0.018721 | 0.002706 | 47.8697 | <.0001 | 
| PM10 | 1 | 0.009594 | 0.000363 | 699.9910 | <.0001 | 
| CO | 1 | −0.069266 | 0.003134 | 488.5453 | <.0001 | 
| SO2 | 1 | −0.161722 | 0.009200 | 309.0070 | <.0001 |