 The DHP was the diabetes-specific PROM selected by the UK Department of Health for their Long Terms Conditions PROM Pilot Study being carried out by Oxford University.Based on a conceptual model the DHP-1 was developed for people with Type 1 diabetes to assess the impact of living with diabetes has on patients quality of life1.Developed using a multimethod methodology including, in-depth interviews with patients, clinical consensus and extensive psychometric validation, the DHP-1 comprises 32 items which are summed to provide three domain scores measuring