The affordable sample size was 801 households with 177 for the control arm and 208 for each of the intervention arms. This sample is expected to yield statistically significant results for the analysis of all measures contemplated. Although the statistical power of the study design with this sample size can be considered good the sample size was rounded up to ~828 households, with ~180 households in the control arm and ~216 households in each of the intervention arms. This was done to represent multiples of 12 since the study will be conducted in 12 facilities.