Table 1 Correlation and variance explained by the covariate
Covariate | Pearson correlation | Efron’s pseudo R2 in univariate model | Contribution to psudo R2 in multivariate model |
|---|---|---|---|
Week id | −0.23 | 0.10 | 33.4% |
Air pressure | −0.11 | 0.03 | – |
Lowest air temperature (°C) | 0.14 | 0.04 | 0.4% |
Higest air temperature (°C) | 0.14 | – | – |
Relative humidity (%) | 0.07 | 0.02 | – |
Wind speed (m/s) | 0.08 | 0.01 | 3.1% |
Road density | 0.15 | 0.05 | – |
GDP | 0.11 | 0.03 | – |
Proportion of primary school students | 0.01a | 0.02 | – |
Number of hospital beds per capita | 0.19 | 0.06 | – |
Artificial coverage ratio | 0.16 | 0.15 | – |
NDVI | −0.04 | 0.04 | 4.3% |
Spatiotemporal cluster | 0.12 | 0.02 | 23.0% |
Spatial effect | 0.22 | 23.0% | |
Total pseudo R2 | 87.2% |