Table 3.
Relative risks (95% CIs) of pneumonia mortality from different infectious causes due to non-optimum temperature, with and without the adjustment of air pollutants.
| Extremely low temperaturea |
Extremely high temperatureb |
|||
|---|---|---|---|---|
| Without adjustment | With adjustment | Without adjustment | With adjustment | |
| Influenza-related pneumonia | 2.46 (1.62, 3.74) | 2.23 (1.37, 3.64) | 1.42 (1.19, 1.69) | 1.49 (1.19, 1.86) |
| Viral pneumonia | 1.89 (1.55, 2.30) | 2.09 (1.64, 2.66) | 1.26 (1.17, 1.37) | 1.27 (1.16, 1.39) |
| Bacterial pneumonia | 1.81 (1.56, 2.09) | 1.79 (1.51, 2.11) | 1.35 (1.27, 1.44) | 1.27 (1.19, 1.36) |
Abbreviations: CIs, confidence intervals.
a
Extremely low temperature: the 1st percentile of temperature distribution (−12.9 °C, −16.7 °C, −16.9 °C), and the referent temperature is the minimum risk temperature (23.3 °C, 22.3 °C, 21.9 °C).
b
Extremely high temperature: the 99th percentile of temperature distribution (30.7 °C, 31.0 °C, 30.9 °C), and the referent temperature is the minimum risk temperature (23.3 °C, 22.3 °C, 21.9 °C).