Table 4 Associations between PM 2.5 mass, EC and OC and cardiac responses
Response | Study | Component | Change per IQR | SEM | p-value | Change per 1 μg/m3 CI (lower, upper) |
|---|---|---|---|---|---|---|
Heart rate | 1 | PM2.5 | 2.757 | 1.502 | 0.068 | -- |
| Â | Â | EC | 7.059 | 0.885 | <.0001 | 28.1, 36.1 |
| Â | Â | OC | -1.845 | 1.431 | 0.199 | -- |
| Â | 2 | PM2.5 | 1.343 | 1.635 | 0.412 | -- |
| Â | Â | EC | 8.354 | 1.454 | <.0001 | 19.7, 28.1 |
| Â | Â | OC | 0.879 | 1.107 | 0.428 | -- |
| Â | 3 | PM2.5 | 0.719 | 1.344 | 0.593 | -- |
| Â | Â | EC | 3.649 | 0.974 | 0.000 | 8.1, 14.1 |
| Â | Â | OC | -5.489 | 1.543 | 0.000 | -2.4 |
| Â | 4 | PM2.5 | 1.086 | 1.375 | 0.431 | -- |
| Â | Â | EC | 5.985 | 1.350 | <.0001 | 20.1, 31.9 |
| Â | Â | OC | 1.916 | 1.266 | 0.131 | -- |
lnSDNN | 1 | PM2.5 | 0.094 | 0.026 | 0.000 | 0.0615, 0.0619 |
| Â | Â | EC | -0.031 | 0.018 | 0.086 | -- |
| Â | Â | OC | 0.001 | 0.026 | 0.955 | -- |
| Â | 2 | PM2.5 | 0.016 | 0.034 | 0.639 | -- |
| Â | Â | EC | -0.061 | 0.031 | 0.053 | -- |
| Â | Â | OC | -0.009 | 0.023 | 0.693 | -- |
| Â | 3 | PM2.5 | 0.024 | 0.029 | 0.415 | -- |
| Â | Â | EC | 0.006 | 0.020 | 0.774 | -- |
| Â | Â | OC | -0.038 | 0.032 | 0.240 | -- |
| Â | 4 | PM2.5 | 0.022 | 0.027 | 0.406 | -- |
| Â | Â | EC | -0.051 | 0.024 | 0.039 | -0.2202, -0.2198 |
| Â | Â | OC | 0.016 | 0.022 | 0.474 | -- |
lnRMSSD | 1 | PM2.5 | 0.001 | 0.017 | 0.942 | -- |
| Â | Â | EC | -0.048 | 0.011 | <.0001 | -0.267, -0.167 |
| Â | Â | OC | -0.011 | 0.016 | 0.494 | -- |
| Â | 2 | PM2.5 | 0.019 | 0.016 | 0.236 | -- |
| Â | Â | EC | -0.023 | 0.015 | 0.127 | -- |
| Â | Â | OC | 0.007 | 0.011 | 0.541 | -- |
| Â | 3 | PM2.5 | -0.009 | 0.016 | 0.603 | -- |
| Â | Â | EC | -0.002 | 0.011 | 0.834 | -- |
| Â | Â | OC | 0.008 | 0.017 | 0.646 | -- |
| Â | 4 | PM2.5 | -0.008 | 0.018 | 0.659 | -- |
| Â | Â | EC | -0.039 | 0.017 | 0.022 | -0.244, -0.096 |
| Â | Â | OC | 0.020 | 0.015 | 0.193 | -- |