Table 1.
The pooled results of temperature on daily new cases of COVID-19 in 152 global countries and 31 provinces of mainland China by different stratifications at lag014.
| Stratification | RR (95%CI) | ||
|---|---|---|---|
| AT | MINT | MAXT | |
| No stratification | 1.03 (0.99, 1.08) | 1.03 (1.00, 1.06) | 1.00 (0.94, 1.06) |
| Dose-response curve peak stratification& | |||
| <Peak value | 1.09 (1.04, 1.15) * | 0.97 (0.94, 1.00) | 1.09 (1.02, 1.16) * |
| >Peak value | 0.79 (0.68, 0.93) * | 1.21 (1.12, 1.31) * | 0.17 (0.08, 0.35) * |
| Climate zone stratification | |||
| Temperate zone | 1.10 (1.05, 1.15) * | 1.08 (1.04, 1.12) * | 1.09 (1.02, 1.16) * |
| Tropical zone | 0.60 (0.43, 0.83) * | 0.58 (0.45, 0.75) * | 0.35 (0.22, 0.55) * |
| IQR# stratification | |||
| <IQR [1] | 1.14 (1.06, 1.23) * | 1.24 (1.12, 1.38) * | 1.10 (1.01, 1.19) * |
| IQR [1]–IQR [2] | 1.05 (0.98, 1.13) | 0.99 (0.96, 1.03) | 1.02 (0.90, 1.16) |
| IQR [2]–IQR [3] | 0.97 (0.84, 1.13) | 0.97 (0.88, 1.07) | 1.18 (0.94, 1.49) |
| >=IQR [3] | 0.48 (0.28, 0.81) * | 0.52 (0.36, 0.73) * | 0.19 (0.10, 0.37) * |
Note: AT: average temperature; MINT: minimum temperature; MAXT: maximum temperature.
*P<0.05
#IQR: interquartile range
&The dose-response relationship peak values of AT, MINT and MAXT are 17.50°C, 12.50°C and 22.50°C, respectively.
The IQR [1]s of AT, MINT and MAXT are 8.57°C, 4.69°C and 12.22°C, respectively.
The IQR [2]s of AT, MINT and MAXT are 16.21°C, 12.70°C and 20.84°C, respectively.
The IQR [3]s of AT, MINT and MAXT are 26.55°C, 21.38°C and 30.82°C, respectively.