About the study

175 practices from five Danish counties participate in the ADDITION-DK. All 163,189 patients in these practices, aged 40-69 years were invited to take part in a stepwise screening program for diabetes.

The first step in the screening program was to complete a score questionnaire. People, who had a high screening score indicating increased risk for type 2 diabetes were requested to attend their general practitioners. Close to 28,000 people attended their doctor and got blood samples taken.

Risk groups identified:

  •  2,463 persons with high risk of developing diabetes, i.e. impaired fasting glucose (IFG) and impaired glucose tolerance (IGF), (enrolled in ADDITION-PRO)
  • 6,944 persons without dysglycemia but at increased risk of cardiovascular disease according to the European Heart SCORE  5 (European Heart Journal (2003) 24, 987–1003) and
  • 1,533 persons with screen detected type 2 diabetes (enrolled in the ADDITION-EUROPE).

The ADDITION-DK includes randomised studies comparing routine treatment with more intensive treatment and cohort follow-up studies.