. 2020 Sep 5;14(3):351–363. doi: 10.1007/s11869-020-00940-5

Table 6.

Multiple regression model results for the relation between air pollutants and COVID-19 cases

Term	Estimate	t Ratio	Lower 95%	Upper 95%	Prob > \|t\|
Intercept	794.65091	3.61	353.65572	1235.6461	0.0006*
Carbon monoxide (CO)	− 4338.958	− 1.05	− 12637.74	3959.8276	0.2997
Nitrogen dioxide (NO₂)	0.9633442	8.25	0.7296115	1.1970768	< 0.0001*
Ozone (O₃)	− 1.990334	− 3.28	− 3.205185	− 0.775483	0.0018*
Sulfur dioxide (SO₂)	− 0.243428	− 2.33	− 0.452871	− 0.033985	0.0235*

R² = 0.65, RMSE = 21.05