Table 2.
Sensitivity analysis of coverage using crude, weighted and the survey design in the calculations
| Indicators | Crude Coverage | Weighted Coverage | Crude - Weighted | Coverage with Survey Design | Crude - Survey Design | (Crude - Weighted) - (Crude - Survey Design) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coverage | Standard Error | 95% CI | Coverage | Standard Error | 95% CI | Coverage Difference | SE Difference | CI Difference | Coverage | Standard Error | 95% CI | Coverage Difference | SE Difference | CI Difference | Difference in Difference in Coverage | Difference in Difference in SE | Difference in Difference in CI | |
| Water | ||||||||||||||||||
| Proportion of households using an improved water source | 0.973 | 0.015 | 0.030 | 0.973 | 0.014 | 0.028 | 0.000 | 0.001 | 0.002 | 0.973 | 0.015 | 0.029 | 0.000 | 0.001 | 0.001 | 0.000 | 0.000 | 0.001 |
| Proportion of households who report that water was continuously available from their habitual water source for the last 2 weeks | 0.561 | 0.047 | 0.092 | 0.570 | 0.044 | 0.087 | -0.009 | 0.003 | 0.005 | 0.570 | 0.045 | 0.089 | -0.009 | 0.002 | 0.003 | 0.000 | 0.001 | 0.002 |
| Proportion of households which own an Ibrik† |
0.451 | 0.047 | 0.093 | 0.455 | 0.041 | 0.082 | -0.004 | 0.006 | 0.011 | 0.455 | 0.042 | 0.084 | -0.004 | 0.005 | 0.009 | 0.000 | 0.001 | 0.002 |
| Hygiene | ||||||||||||||||||
| Proportion of households with at least one piece of soap (observed) | 0.487 | 0.047 | 0.094 | 0.506 | 0.040 | 0.079 | -0.020 | 0.008 | 0.015 | 0.508 | 0.041 | 0.080 | -0.021 | 0.007 | 0.013 | 0.002 | 0.001 | 0.002 |
| Proportion of households with a hand washing area within the living area | 0.257 | 0.041 | 0.082 | 0.274 | 0.027 | 0.054 | -0.017 | 0.014 | 0.028 | 0.274 | 0.028 | 0.055 | -0.017 | 0.014 | 0.027 | 0.000 | 0.000 | 0.001 |
| Proportion of households which have been visited by a health promoter within the last 2 weeks | 0.938 | 0.023 | 0.045 | 0.941 | 0.021 | 0.041 | -0.003 | 0.002 | 0.004 | 0.942 | 0.021 | 0.041 | -0.004 | 0.002 | 0.004 | 0.000 | 0.000 | 0.001 |
| Proportion of heads of households who know four critical moments to practice hand washing with soap | 0.345 | 0.045 | 0.089 | 0.370 | 0.033 | 0.065 | -0.025 | 0.012 | 0.024 | 0.372 | 0.034 | 0.067 | -0.027 | 0.011 | 0.022 | 0.002 | 0.001 | 0.002 |
| Sanitation | ||||||||||||||||||
| Proportion of households who usually use an improved sanitation facility | 0.965 | 0.017 | 0.035 | 0.967 | 0.016 | 0.032 | -0.003 | 0.001 | 0.003 | 0.968 | 0.016 | 0.032 | -0.003 | 0.001 | 0.002 | 0.001 | 0.000 | 0.000 |
| Proportion of households that practice open defecation | 0.035 | 0.017 | 0.035 | 0.033 | 0.016 | 0.032 | 0.003 | 0.001 | 0.003 | 0.032 | 0.016 | 0.032 | 0.003 | 0.001 | 0.002 | -0.001 | 0.000 | 0.000 |
| Diarrhoea | ||||||||||||||||||
| Prevalence of diarrhoea among children 0-59 months in the last 2 weeks | 0.283 | 0.043 | 0.084 | 0.283 | 0.042 | 0.084 | 0.000 | 0.000 | 0.001 | 0.284 | 0.043 | 0.086 | -0.001 | -0.001 | -0.002 | 0.001 | 0.001 | 0.002 |
| Standard Deviation of Difference | 0.010 | 0.005 | 0.010 | 0.010 | 0.005 | 0.010 | 0.001 | 0.000 | 0.001 | |||||||||
| Maximum Difference | 0.003 | 0.014 | 0.028 | 0.003 | 0.014 | 0.027 | 0.002 | 0.001 | 0.002 | |||||||||
| Average Difference | -0.008 | 0.005 | 0.010 | -0.008 | 0.004 | 0.008 | 0.000 | 0.001 | 0.001 | |||||||||
| Median Difference | -0.004 | 0.002 | 0.005 | -0.004 | 0.002 | 0.004 | 0.000 | 0.001 | 0.001 | |||||||||
†An ibrik is a water storage container used for washing