Table 3.
Mean relative risk for mortality from Covid-19 per unit of increase in the concentration of PM2.5 and NO2 during the period from Mar 1, 2019, to Aug 31, 2020,*.
| Variable | Incidence risk rate (IRR) (%) | P-value | IC95% |
|
|---|---|---|---|---|
| Min | Max | |||
| PM2.5 (μg/m3) | 1.024 (1.5) | 0.092 | 0.992 | 1.045 |
| NO2 (μg/m3) | 1.051 (2.7) | 0.000 | 1.031 | 1.068 |
| Days (from first case) | 1.015 (1.4) | 0.002 | 1.009 | 1.024 |
| Hypertension (%) | 0.893 (0.5) | 0.669 | 0.872 | 1.011 |
| Diabetes (%) | 1.079 (4.2) | 0.012 | 1.046 | 1.089 |
| Obesity case (%) | 1.066 (5.4) | 0.017 | 1.019 | 1.098 |
*Poisson multivariate model, adjusted for two pollutants and comorbidities.