Table 1.
Summary statistics for the number of Buruli ulcer cases and potential covariates used in analyses.
| Variable | Mean | Minimum | Maximum |
| Dependent variable | |||
| Buruli ulcer cases | 1.8 | 0.0 | 29 |
| Covariates | |||
| Agriculture (0.1) | 0.33 | 0.0 | 1.0 |
| Agriculture (0.5) | 0.33 | 0.0 | 1.0 |
| Agriculture (1) | 0.33 | 0.0 | 1.0 |
| Agriculture (5) | 0.33 | 0.0 | 0.88 |
| Agriculture (10) | 0.33 | 0.0 | 0.77 |
| Agriculture (20) | 0.31 | 0.0 | 0.61 |
| Agriculture (50) | 0.25 | 0.0 | 0.42 |
| Urban (0.1) | 0.05 | 0.0 | 1.0 |
| Urban (0.5) | 0.03 | 0.0 | 0.62 |
| Urban (1) | 0.02 | 0.0 | 0.48 |
| Urban (5) | 0.01 | 0.0 | 0.21 |
| Urban (10) | 0.01 | 0.0 | 0.13 |
| Urban (20) | 0.01 | 0.0 | 0.06 |
| Urban (50) | 0.01 | 0.0 | 0.06 |
| Water (0.1) | 0.0 | 0.0 | 1.0 |
| Water (0.5) | 0.01 | 0.0 | 0.88 |
| Water (1) | 0.01 | 0.0 | 0.72 |
| Water (5) | 0.01 | 0.0 | 0.42 |
| Water (10) | 0.01 | 0.0 | 0.34 |
| Water (20) | 0.01 | 0.0 | 0.23 |
| Water (50) | 0.01 | 0.0 | 0.07 |
| Wetland (0.1) | 0.0 | 0.0 | 0.17 |
| Wetland (0.5) | 0.01 | 0.0 | 0.19 |
| Wetland (1) | 0.01 | 0.0 | 0.20 |
| Wetland (5) | 0.0 | 0.0 | 0.18 |
| Wetland (10) | 0.02 | 0.0 | 0.23 |
| Wetland (20) | 0.02 | 0.0 | 0.17 |
| Wetland (50) | 0.03 | 0.0 | 0.11 |
| Forest (0.1) | 0.02 | 0.0 | 1.0 |
| Forest (0.5) | 0.03 | 0.0 | 0.71 |
| Forest (1) | 0.03 | 0.0 | 0.50 |
| Forest (5) | 0.04 | 0.0 | 0.57 |
| Forest (10) | 0.05 | 0.0 | 0.70 |
| Forest (20) | 0.06 | 0.0 | 0.76 |
| Forest (50) | 0.07 | 0.0 | 0.52 |
| Distance to river (m) | 22.4 | 3,850 | 12,157 |
| Wetness index | 6.8 | 7.9 | 9.2 |
| Mean elevation (m) | 120.9 | 51.8 | 345.4 |
Land use/cover was estimated for different buffer widths around individual villages, while mean wetness index and elevation are based on the village drainage basin (see Methods). Land use/cover variable is followed by buffer radius (km) in parentheses.