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Danish Transfusion Database


Primary variables


Hemoglobin Measurement


Municipality of residence


Social Security number


The Danish Transfusion Database (DTDB) is a nationwide quality assurance database that contains data on all transfusions, patient admissions (also those not requiring blood), all laboratory results and all reconciliation data. The database also holds data on CPR number, number of blood units, patient data, diagnosis, operations, treatment, etc

DTBD is aimed at studying the use of blood components in Denmark so as to ensure efficient transfusion practice. The background for DTDB reflects the fact that Danes use up to 50% more blood components than in other countries with similar conditions (in this respect) as in Denmark.

Data for DTDB comes from individual regions and the Danish Health Authority and consists of extracts from existing data sources. Data comes from the National Patient Register (LPR), blood bank registers and clinical biochemical registers.

More details

Nationwide clinical quality database
Clinical quality

Collection Period

Collection Period
The population comprises all patients admitted to somatic departments and all contacts with haematological outpatients, excluding uncompleted pathways. The data covers all erythrocyte transfusions undertaken in Denmark
Database Categories

Application requirements

The Regional Clinical Quality Databases

Data about clinical quality are collected with the purpose of monitoring and raising the quality of patient treatment in the Danish health-care system. These data can, as well as all other public registers, be made accessible for research projects based on systematic protocols and approved according to the relevant legislations.

Applying for access to data from a regional clinical database requires a list of demands to be obtained. A project description should be attached containing a description of the project explaining the rationale, purpose, methods, budget, publication plan etc.

Furthermore, The Danish Data Protection Agency must approve the project.

Application process

  • Apply via research access (Danish: forskeradgang), an online application system
  • Submit the protocol to The Danish Clinical Registries (RKKP)
  • RKKP registers the application
  • The application is forwarded to the relevant clinical database
  • Potential dialog about adjustment to the protocol
  • Approval and extradition of data (expected 6 months after application)



The Regional clinical quality databases subject to rules for treatment of personal data, that should secure high quality of patient treatment in Denmark. These legislations include The Act on Processing of Personal Data (Danish: Persondataloven) and The Danish Act of Health (Danish: Sundhedloven). These legislations ensure that data access is limited to relevant purposes.

Contact information

Data owner
Central Denmark Region
Contact data owner
Regionshuset Viborg
Skottenborg 26
8800 Viborg 
Website - data owner
Data administrator
The Danish Clinical Registries (RKKP)
Contact data administrator

Anne Haagen Hjelm
T: 21 68 68 35

Website - data administrator
Website - data administrator