Figure 1 Profile of MMR Catch up Campaign in the Royal Borough of Kingston. There were no accurate baseline data on previous MMR immunisations; therefore all children were targeted in the 50 participating schools. Consent forms were given to children in schools to hand to their parents. Completed forms were handed back to school. For the purpose of the study, the forms were anonymised to ensure confidentiality. Reasons for refusal were analysed using Excel. *These two groups were counted together.