Table 4 Multivariable model results of the association between rainfall, household sanitation factors and child diarrhea prevalence
Predictors | Full model | Adjusted reduced model | ||||
|---|---|---|---|---|---|---|
Coefficient | 95 % Confidence interval | Coefficient | 95 % Confidence interval | |||
Rainfall variables | ||||||
Total monthly rain | ||||||
Low | Ref | – | – | – | – | – |
Average | 0.06 | −0.18 | 0.31 | – | – | – |
High | 0.10 | −0.26 | −0.47 | – | – | – |
Runoff water | ||||||
Low runoff | Ref | – | – | Ref | – | – |
Moderate runoff | −0.61 | −1.09 | −0.14 | −0.61 | −1.07 | −0.14 |
High runoff | −0.73 | −1.29 | −0.16 | −0.70 | −1.24 | −0.15 |
Monthly rain intensity | ||||||
Dry | Ref | – | – | – | – | – |
Normal | −0.04 | −0.29 | 0.21 | – | – | – |
Wet | −0.10 | −0.47 | 0.27 | – | – | – |
Anomalous rainfall | ||||||
Below normal | Ref | – | – | – | – | – |
Normal | 0.26 | −0.12 | 0.64 | – | – | – |
Above normal | 0.50 | −0.06 | 1.06 | – | – | – |
Sanitation variables | ||||||
Time to get water | ||||||
≥ 30 min | Ref | – | – | – | – | – |
< 30 min | −0.18 | −0.33 | −0.03 | −0.18 | −0.33 | 0.04 |
Household source of drinking water | ||||||
Unimproved source | Ref | – | – | – | – | – |
Improved source | 0.17 | −0.20 | 0.55 | −0.05 | −0.22 | 1.13 |
Toilet quality | ||||||
Unimproved | Ref | – | – | – | – | – |
Improved | −0.40 | −0.83 | 0.03 | −0.41 | −0.85 | 0.02 |
Stool disposal | ||||||
Good disposal | Ref | – | – | – | – | – |
Bad disposal | 0.44 | −0.26 | 0.62 | 0.44 | 0.26 | 0.62 |
Shared toilet | ||||||
No | Ref | – | – | – | – | – |
Yes | 0.34 | 0.17 | 0.50 | 0.34 | 0.17 | 0.50 |
Interaction term | ||||||
Runoff*toilet quality | ||||||
Moderate runoff*improved toilet | 0.53 | −0.05 | 1.01 | 0.55 | 0.07 | 1.03 |
High*Improved toilet | 0.62 | −0.05 | 1.19 | 0.61 | 0.04 | 1.18 |
Anomalous rainfall* toilet quality | ||||||
Normal rain*improved source of water | −0.20 | −0.64 | 0.23 | – | – | – |
Above normal * improved source of water | −0.51 | −1.07 | 0.04 | – | – | – |