Danish Twin Registry (DTR)
As of April 2024, the DTR is one the oldest and largest twin registers globally and has evolved to encompass over 100,000 twin pairs from all birth cohorts since 1870 in Denmark, with comprehensive data collection methods ensuring accurate identification and tracing of twins. As of 2012, the DTR included almost over 85,000 twin pairs born between 1870 and 2009 throughout six separate cohorts of twins categorised by year of birth (i.e., 1870 - 1910, 1911 - 1930, 1931 - 1952, 1953 - 1967, 1968 - 1982, and 1983 - 2000), with over 105,000 twin individuals alive. Zygosity information is available for over 80% of pairs, and extensive health data has been collected.
Study design
Cohort - twin, Registry
Number of participants at first data collection
26,474 (participants)
Age at first data collection
Birth (participants)
Participant year of birth
1870 - 2009 (participants)
Participant sex
All
Representative sample at baseline?
General population of twins in Denmark.
Sample features
Country
Year of first data collection
1870 (birth records)
1954 (DTR establishment)
Primary Institutions
University of Southern Denmark (Syddansk Universitet, SDU)
Profile paper DOI
Funders
Danish Agency for Science, Technology and Innovation (DASTI)
Danish Diabetic Association
Danish Heart Foundation
Danish National Research Foundation (DNRF)
Danish Research Council
Ongoing?
Yes
Data types collected
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-report questionnaire – paper or computer assisted
- None
- None
- Census data
- Education data
- Employer data
- Healthcare data
- Medical birth registry
- Mortality data
- Other government data
- Tax, income & benefit data
Engagement
Keywords
Consortia and dataset groups
