Research Article
The Impact of Air Quality on Cardiovascular Disease in Shanghai
Table 2
Correlation between major air pollutants and cardiovascular diseases.
| | AQI (mean) | PM2.5 (mean) | PM10 (mean) | SO2 (mean) | NO2 (mean) | CO (mean) | O3 (mean) | Number of cardiovascular visits |
| | AQI (mean) | Pearson correlation | 1 | 0.958 | 0.927 | 0.798 | 0.697 | 0.743 | −0.465 | 0.575 | | Significance (bilateral) | | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.001 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | PM2.5 (mean) | Significance (bilateral) | 0.958 | 1 | 0.918 | 0.857 | 0.766 | 0.810 | −0.620 | 0.652 | | Significance (bilateral) | 0.000 | | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | PM10 (mean) | Pearson correlation | 0.927 | 0.918 | 1 | 0.854 | 0.747 | 0.713 | −0.522 | 0.597 | | Significance (bilateral) | 0.000 | 0.000 | | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | SO2 (mean) | Pearson correlation | 0.798 | 0.857 | 0.854 | 1 | 0.710 | 0.793 | −0.751 | 0.675 | | Significance (bilateral) | 0.000 | 0.000 | 0.000 | | 0.000 | 0.000 | 0.000 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | NO2 (mean) | Pearson correlation | 0.697 | 0.766 | 0.747 | 0.710 | 1 | 0.817 | −0.735 | 0.589 | | Significance (bilateral) | 0.000 | 0.000 | 0.000 | 0.000 | | 0.000 | 0.000 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | CO (mean) | Pearson correlation | 0.743 | 0.810 | 0.713 | 0.793 | 0.817 | 1 | −0.837 | 0.568 | | Significance (bilateral) | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | 0.000 | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | O3 (mean) | Pearson correlation | −0.465 | −0.620 | −0.522 | −0.751 | −0.735 | −0.837 | 1 | −0.508 | | Significance (bilateral) | 0.001 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | 0.000 | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| | Number of cardiovascular visits | Pearson correlation | 0.575 | 0.652 | 0.597 | 0.675 | 0.589 | 0.568 | −0.508 | 1 | | Significance (bilateral) | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | | | N | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
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Significant correlation at the 0.01 level (bilateral). Significant correlation at the 0.05 level (bilateral). |
