Introduction: Clinical databases contain data related to diagnostic procedures, treatments and outcomes. In 2001, a scheme was introduced for the approval, supervision and support to clinical databases in Denmark.
Content: Clinical databases may cover disease entities, specific interventions, or specific activities.
Validity and coverage: As of January 2011, 59 clinical databases (51 nationwide) are registered as approved by the National Board of Health. The National Indicator Project currently covers eight disease areas, with two more under implementation.
Conclusion: Current challenges for clinical databases in Denmark are outlined.