Table 3.
Correlation between environmental factors and CVD mortality.
| Category | Subcategory | Variable | Ρ (correlation coefficient) | P value (double side) |
|---|---|---|---|---|
| Land use | Live | Residential density | 0.127∗ | 0.000 |
| Business | Density of fast-food restaurants in 500 m buffer zone | 0.287∗∗ | 0.000 | |
| Density of tobacco and liquor stores in 500 m buffer zone | 0.286∗∗ | 0.000 | ||
| Industry | Distance from the nearest industry | -0.011 | 0.717 | |
| Open the activity space | Distance from the nearest open space | −0.189∗∗ | 0.000 | |
| Vegetation cover | Normalized difference vegetation index (NDVI) | −0.179∗∗ | 0.000 | |
| Road transport | Traffic | Road network density | 0.138∗∗ | 0.000 |
| Road intersection density in 500 m buffer zone | 0.220∗∗ | 0.000 | ||
| Bus stop | Density of bus stops in 500 m buffer zone | 0.238∗∗ | 0.000 | |
| Spatial form | Building density | Building coverage | 0.104∗∗ | 0.001 |
| Volume fraction | Volume fraction | 0.115∗∗ | 0.000 | |
| Natural environment | River | Distance from the nearest river | 0.121∗∗ | 0.000 |
| Particulate matter (pm) | Average annual pm2.5 | 0.088∗∗ | 0.004 | |
| Average annual pm10 | 0.072∗ | 0.020 | ||
| (Ground) surface temperature | Surface temperature in January 2019 | −0.135∗ | 0.000 |
∗ P < 0.05, ∗∗P < 0.01.