For binary outcomes, generalised linear Poisson models with log link function will be used. The effect of the intervention will be quantified by calculation of a prevalence risk ratio. For quantitative outcomes, linear regression models will be used. The effect of the intervention will be quantified by calculation of difference in mean outcome. Rate ratios will be used to describe the effect of the intervention on rates. An estimate of the coefficient of variation, k, will be provided overall and for the community survey for each age group (as defined by the stratified sampling).