Table 5.
Fitting results of single and double air pollutant model.
| Model | Risk ratio (95% CI) | |
|---|---|---|
| Increase 10 μg/m3 or 1 mg/m3 | Increase the interquartile range | |
| PM2.5 | ||
| PM2.5 | 1.026 (1.011-1.040)∗ | 1.144 (1.062-1.233)∗ |
| PM2.5 + PM10 | 0.994 (0.972-1.017) | 0.971 (0.862-1.093) |
| PM2.5 + NO2 | 1.020 (1.001-1.038)∗ | 1.109 (1.007-1.222)∗ |
| PM2.5 + SO2 | 1.033 (1.016-1.050)∗ | 1.189 (1.090-1.297)∗ |
| PM2.5 + CO | 1.022 (1.005-1.039)∗ | 1.121 (1.026-1.225)∗ |
| PM2.5 + O3 | 1.026 (1.012-1.041)∗ | 1.147 (1.064-1.236)∗ |
| PM10 | ||
| PM10 | 1.019 (1.012-1.026)∗ | 1.157 (1.093-1.225)∗ |
| PM10 + PM2.5 | 1.021 (1.010-1.033)∗ | 1.178 (1.077-1.289)∗ |
| PM10 + NO2 | 1.017 (1.009-1.025)∗ | 1.142 (1.072-1.216)∗ |
| PM10 + SO2 | 1.021 (1.013-1.029)∗ | 1.179 (1.109-1.252)∗ |
| PM10 + CO | 1.018 (1.010-1.026)∗ | 1.146 (1.077-1.218)∗ |
| PM10 + O3 | 1.019 (1.012-1.027)∗ | 1.158 (1.094-1.226)∗ |
| NO2 | ||
| NO2 | 1.051 (1.019-1.083)∗ | 1.171 (1.063-1.290)∗ |
| NO2 + PM2.5 | 1.023 (0.984-1.063) | 1.075 (0.949-1.217) |
| NO2 + PM10 | 1.022 (0.989-1.057) | 1.073 (0.966-1.193) |
| NO2 + SO2 | 1.078 (1.037-1.120)∗ | 1.270 (1.122-1.438)∗ |
| NO2 + O3 | 1.051 (1.019-1.083)∗ | 1.171 (1.062-1.291)∗ |
| NO2 + CO | 1.032 (0.995-1.071) | 1.107 (0.984-1.244) |
| CO | ||
| CO | 1.156 (1.058-1.264)∗ | — |
| CO + NO2 | 1.097 (0.984-1.224) | — |
| CO + PM2.5 | 1.065 (0.958-1.185) | — |
| CO + PM10 | 1.066 (0.968-1.174) | — |
| CO + SO2 | 1.195 (1.074-1.329)∗ | — |
| CO + O3 | 1.160 (1.061-1.269)∗ | — |