The number of insulin pump users registered in the Danish paediatric diabetes clinics shows an increase of approximately 500% from 2002 to 2006. The current evidence for improved insulin treatment by insulin pump therapy is mainly based on retrospective follow-up studies. Well-organised, longer and prospectively designed RCTs - especially focussing on possible differences in the resources used by health care professionals - are warranted to provide sufficient evidence for any improved benefits of insulin pump therapy in children and adolescents with diabetes.