Demonstrate that the use of benchmarking improves quality of patient care, in particular the control of diabetes, lipids and blood pressure, by determining the percentage of patients in the benchmarking group achieving pre-set targets for HbA1c 14,18, LDL-cholesterol16,18 and Systolic Blood Pressure17,18 versus control group (non-benchmarking group) after 12 months of follow-up.