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The correlation between the coronavirus disease 2019 (COVID-19) daily death number and six ambient air pollutants from 25 Jan to 7 Apr 2020 in Wuhan, China. The regression coefficient (RC) relative risk (RR), 95% confidence interval (95% CI), and p value for each meteorological variable was listed
| RC | RR | 95% CI | p | |
|---|---|---|---|---|
| Daily temperature | − 0.149 | 0.861 | 0.851–0.872 | < 0.01 |
| Relative humidity | − 0.005 | 0.995 | 0.989–1 | 0.062 |
| Diurnal temperature range | 0.014 | 1.014 | 1.003–1.025 | 0.01 |
