Table 2 Pearson correlations of PM2.5, O3, and NO2 for both the linear mixed and the multiple logistic regression models
Linear mixed models | |||
| Â | PM2.5 | O3 | NO2 |
  PM2.5 | 1.00 | 0.53 | 0.40 |
   O3 | - | 1.00 | 0.11 |
   NO2 | - | - | 1.00 |
Multiple logistic regression models | |||
| Â | PM2.5 | O3 | NO2 |
   PM2.5 | 1.00 | 0.55 | 0.38 |
   O3 | - | 1.00 | 0.2 |
   NO2 | - | - | 1.00 |