| Dependent variable: ln confirmed cases of COVID-19 (standardized by population) | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | May. 28th, 2020 | Jun. 28th, 2020 | Jul. 28th, 2020 | Aug. 28th, 2020 | Sep. 28th, 2020 | Oct. 28th, 2020 | Nov. 28th, 2020 | Dec. 28th, 2020 | Jan. 28th, 2021 | |||||||||
 | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D | Coef | S.D |
Independent variables | ||||||||||||||||||
 % Non-Hispanic black | 0.041** | 0.002 | 0.041** | 0.001 | 0.037** | 0.001 | 0.032** | 0.001 | 0.026** | 0.001 | 0.018** | 0.001 | 0.008** | 0.001 | 0.004** | 0.001 | 0.005** | 0.001 |
 % Hispanics | 0.009** | 0.002 | 0.018** | 0.002 | 0.023** | 0.001 | 0.020** | 0.001 | 0.016** | 0.001 | 0.011** | 0.001 | 0.008** | 0.001 | 0.007** | 0.001 | 0.006** | 0.001 |
 % Asian American | 0.042** | 0.012 | 0.027* | 0.011 | 0.010 | 0.008 | 0.009 | 0.006 | 0.006 | 0.006 | -0.004 | 0.006 | -0.018** | 0.005 | -0.018** | 0.005 | -0.018** | 0.005 |
Covariates | ||||||||||||||||||
 Regions | ||||||||||||||||||
  Category-1 high rich-poor polarization and high median household income | REF |  | REF |  | REF |  | REF |  | REF |  | REF |  | REF |  | REF |  | REF |  |
  Category-2 low rich-poor polarization and high median household income | 0.107 | 0.064 | 0.106* | 0.054 | 0.034 | 0.043 | 0.018 | 0.036 | 0.010 | 0.036 | 0.046 | 0.036 | 0.119** | 0.034 | 0.075** | 0.029 | 0.035 | 0.024 |
  Category-3 high rich-poor polarization and low median household income | -0.477** | 0.066 | -0.324** | 0.057 | -0.123** | 0.046 | 0.016 | 0.040 | 0.070 | 0.039 | 0.139** | 0.037 | 0.142** | 0.034 | 0.124** | 0.028 | 0.096** | 0.024 |
  Category-4 low rich-poor polarization and low median household income | -0.372** | 0.077 | -0.260** | 0.070 | -0.211** | 0.057 | -0.118* | 0.049 | -0.096* | 0.048 | -0.005 | 0.046 | 0.081* | 0.039 | 0.076* | 0.032 | 0.038 | 0.028 |
  Primary care physicians per 100,000 | 0.000 | 0.001 | 0.000** | 0.001 | -0.001 | 0.000 | -0.002** | 0.000 | -0.002** | 0.000 | -0.001** | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
  Housing problems | 0.000 | 0.007 | 0.004** | 0.006 | 0.002 | 0.005 | -0.004 | 0.004 | -0.013** | 0.004 | -0.022** | 0.004 | -0.028** | 0.005 | -0.027** | 0.004 | -0.022** | 0.004 |
  Life expectancy at the county level | -0.001 | 0.002 | 0.002** | 0.002 | 0.003 | 0.002 | 0.002 | 0.002 | 0.003 | 0.002 | 0.003 | 0.002 | 0.001 | 0.002 | 0.000 | 0.002 | 0.000 | 0.002 |
  Intercept | -6.837** | 0.200 | -6.560 | 0.182 | -5.845** | 0.180 | -5.108** | 0.149 | -4.581** | 0.158 | -3.962** | 0.180 | -3.118** | 0.135 | -2.599** | 0.125 | -2.357** | 0.127 |
  Num. of counties | 2950 |  | 2944 |  | 2944 |  | 2945 |  | 2945 |  | 2945 |  | 2945 |  | 2945 |  | 2945 |  |
  F-statistics | 120.50 |  | 157.26 |  | 233.05 |  | 229.69 |  | 171.96 |  | 101.47 |  | 26.06 |  | 21.22 |  | 22.85 |  |
  [p-value] | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  | [0.000] |  |