The prevalence of type 2 diabetes is rising in the UK. The number of people with diabetes recorded on practice diabetes registers for the Quality and Outcomes framework (QoF) payments rose from 3.4% in 2004/5 to 3.9% in 2007/8.1 Figures based on a model of prevalence suggest that in 2010 there were 3.1 million people with diabetes in the UK, aged 16 and over, a prevalence rate of 7.4% and that 27% had yet to be diagnosed.2 Diabetes prevalence rises with age, so the majority of people with diagnosed diabetes in the UK are over 50 years of age.