Table 2.
Bayesian multinomial logistic regression model for mono- and co-infection with Schistosoma mansoni and hookworm with geostatistical random effects, based on parasitological data among 27,729 schoolchildren from 395 schools in East Africa.
| Variable | β posterior mean (95% posterior CI) | OR posterior mean (95% posterior CI) |
|---|---|---|
| S. mansoni mono-infection | ||
| Intercept | -3.838 (-4.696 - -2.888) | |
| Elevation | -1.050 (-1.507 - -0.550) | 0.350 (0.222 - 0.577) |
| Distance to permanent water body | -1.475 (-2.353 - -0.793) | 0.229 (0.095 - 0.452) |
| Urban-rural 3 | -0.843 (-1.570 - -0.234) | 0.430 (0.208 - 0.792) |
| Urban-rural 4 | -0.477 (-1.492 - 0.367) | 0.621 (0.225 - 1.444) |
| LST | -0.129 (-0.475 - 0.221) | 0.879 (0.622 - 1.247) |
| Sex (female) | -0.154 (-0.269 - -0.038) | 0.857 (0.764 - 0.963) |
| Age (9-10 years) | 0.515 (0.315 - 0.721) | 1.674 (1.370 - 2.057) |
| Age (11-13 years) | 0.893 (0.725 - 1.060) | 2.443 (2.064 - 2.886) |
| Age (≥14 years) | 1.055 (0.785 - 1.312) | 2.872 (2.192 - 3.714) |
| Phi (rate of decay) | 3.517 (1.727 - 7.214) | |
| Variance of spatial random effect | 6.388 (3.523 - 11.780) | |
| Hookworm mono-infection | ||
| Intercept | -0.636 (-1.135 - -0.323) | |
| Elevation | -0.260 (-0.429 - -0.113) | 0.771 (0.651 - 0.893) |
| Distance to permanent water body | -0.063 (-0.277 - 0.142) | 0.939 (0.758 - 1.153) |
| Urban-rural 3 | -0.016 (-0.386 - 0.317) | 0.984 (0.680 - 1.373) |
| Urban-rural 4 | 0.150 (-0.194 - 0.593) | 1.162 (0.824 - 1.810) |
| LST | -0.513 (-0.686 - -0.330) | 0.599 (0.504 - 0.719) |
| Sex (female) | -0.094 (-0.151 - -0.034) | 0.910 (0.860 - 0.966) |
| Age (9-10 years) | 0.153 (0.043 - 0.261) | 1.165 (1.044 - 1.298) |
| Age (11-13 years) | 0.435 (0.329 - 0.539) | 1.545 (1.390 - 1.714) |
| Age (≥14 years) | 0.631 (0.489 - 0.762) | 1.880 (1.630 - 2.143) |
| Phi (rate of decay) | 4.980 (3.383 - 7.332) | |
| Variance of spatial random effect | 1.311 (0.984 - 1.760) | |
| S. mansoni and hookworm co-infection | ||
| Intercept | -4.352 (-5.024 - -3.744) | |
| Elevation | -1.206 (-1.626 - -0.754) | 0.299 (0.197 - 0.471) |
| Distance to permanent water body | -1.203 (-1.736 - -0.546) | 0.300 (0.176 - 0.579) |
| Urban-rural 3 | -0.499 (-1.037 - 0.024) | 0.607 (0.355 - 1.024) |
| Urban-rural 4 | -0.290 (-1.165 - 0.481) | 0.748 (0.312 - 1.618) |
| LST | -0.563 (-1.170 - -0.139) | 0.570 (0.310 - 0.870) |
| Sex (female) | -0.364 (-0.465 - -0.259) | 0.695 (0.628 - 0.772) |
| Age (9-10 years) | 0.597 (0.416 - 0.791) | 1.816 (1.516 - 2.206) |
| Age (11-13 years) | 1.096 (0.937 - 1.259) | 2.992 (2.553 - 3.522) |
| Age (≥14 years) | 1.344 (1.103 - 1.581) | 3.834 (3.013 - 4.860) |
| Phi (rate of decay) | 3.758 (2.101 - 7.363) | |
| Variance of spatial random effect | 6.339 (3.977 - 9.954) | |