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National Database for Contact Allergy


Primary variables


Hairdresser's series test

Hand eczema

Identification of allergen

Industrial allergy

Latex test

Standard series

Treating hospital /department


The National Database for Contact Allergy (LKDK) is a clinical quality database that contains data relating to occurrence and treatment of patients with contact allergy/-eczema in the hospital sector and in dermatological specialist practice.

The aim of LKDK is to monitor and improve the quality of investigating and treatmeant and to register; the frequency of allergies to specific chemical substances amongst patients in order to identify significant new allergens, to follow developments in allergy and document any effects from prevention or intervention.

LKDK was established in connection with the formation of the Knowledge Center for Allergy at Gentofte Hospital in 2001, and later expanded with clinical quality information, as proposed by the National Board of Health.

More details

Nationwide clinical quality database
Clinical quality

Collection Period

Collection Period
The population consists of patients with contact eczema/allergy
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

  • Application for data access is sent to the board of the database
  • After approval the application is forwarded to the contact person of the database
  • The contact person controls the application
  • If the application is complete the applicant must accept the terms of extradition of data (a written acceptance is sent via e-mail to the contact person)
  • The application is sent to data manager
  • Approval and extradition of data
  • within 30 days after data delivery the applicant must control the data extraction and afterwards it should be deleted



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
The Capital Region of Denmark
Contact data owner
Kongens vænge 2
3400 Hillerød
Website - data owner
Data administrator
The Danish Clinical Registries (RKKP)
Contact data administrator
Rune Bjerg Hansen
T: 24 34 84 68
Website - data administrator
Website - data administrator