Table 4. Variable contributions according to various spatial models.
| Variables | Contribution % | ||
|---|---|---|---|
| Model 1 | Model 2 | Model 3 | |
| Virus detection sites in the environment as presence data, natural environmental variables | Virus detection sites in the environment as presence data, natural and urban environmental variables | Possible human infection and virus detection sites in the environment as presence data, natural and urban environmental variables | |
| LST | 39.7 | 7.6 | 17.6 |
| NDWI | 14.1 | 6.1 | 3.9 |
| Distance from the water bodies | 23.8 | 12.5 | 7.7 |
| Elevation | 22.3 | 9.6 | 1.9 |
| Building density | - | 7.9 | 5.7 |
| Road density | - | 54.0 | 58.7 |
| Railway density | - | 2.4 | 4.4 |
| Model AUC | 0.857±0.027 | 0.930±0.015 | 0.947±0.008 |