Table 2.
Variables selected by a Bayesian variable selection approach applied within the geostatistical logistic regression model
| A. lumbricoidesinfection | T. trichiurainfection | Hookworm infection | |
|---|---|---|---|
| Group 1 | |||
| Yearly mean temperaturea | 0 | 0 | 0 |
| Maximum temperature of warmest montha | 0 | 0 | 0 |
| Minimum temperature of coldest montha | 0 | 0 | 0 |
| Mean temperature of wettest quarter | 0 | 0 | 0 |
| Mean temperature of driest quarter | 0 | 0 | 0 |
| Mean temperature of warmest quartera | x | 0 | x |
| Mean temperature of coldest quartera | 0 | x | 0 |
| Group 2 | |||
| Mean diurnal temperature rangeb | x | 0 | 0 |
| Yearly temperature rangea,b | 0 | x | x |
| Group 3 | |||
| Isothermality | x | x | 0 |
| Temperature seasonality | 0 | 0 | x |
| Group 4 | |||
| Yearly precipitationa | x | 0 | 0 |
| Precipitation in wettest month | 0 | 0 | 0 |
| Precipitation in wettest quartera | 0 | x | x |
| Group 5 | |||
| Precipitation in driest montha,c | 0 | x | 0 |
| Precipitation in driest quarterc | x | 0 | x |
| Moderately correlated | |||
| Precipitation seasonality | x | x | x |
| Precipitation in warmest quarterb | x | x | x |
| Precipitation in coldest quarterb,c | x | x | x |
| Altitude | x | 0 | x |
| Soil moisturea,b,c | x | 0 | x |
| Soil pHb,c | x | x | x |
| Human development index (HDI) | x | x | x |
| Human influence indexb (HII) | 0 | x | 0 |
| Rural householdsb,c | 0 | x | 0 |
| Improved sanitation | 0 | 0 | 0 |
| Improved water supplya,b,c | 0 | 0 | 0 |
| Improved waste collectionb | 0 | 0 | 0 |
| Poor households | x | x | 0 |
| Survey period | Fixed | Fixed | Fixed |
| Posterior probability (%) | 44.8 | 93.5 | 25.3 |
aCategorised for T. trichiura.
bCategorised for hookworm.
cCategorised for A. lumbricoides.
x (selected), 0 (not selected).
The best model selected by the geostatistical variable selections is presented for each soil-transmitted helminth species, together with its posterior probability.