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The Danish Twin Register
K O Kyvik1, K Christensen, A Skytthe
1Odense University, Genetic Epidemiological Research Group.
Background:
Population based twin registers represent a valuable tool for genetic epidemiological research, since twin studies aim at separating the effect of genes and environment for complex traits. The Danish Twin Register's history, size, ascertainment and completeness of data, as well as data accessibility and availability are described.
Results:
The Danish Twin Register comprises 14,051 twin pairs born 1870-1930, representing all twins surviving to age six years, and 20,888 twin pairs born 1953-1982, representing 75% of those born 1953-1967 and 95% of those born 1968-1982. The birth cohorts 1931-1952 og 1983-1993 are being ascertained at the moment. The register is available for research given certain conditions are fulfilled.
Conclusion:
This register will in a few years be the most comprehensive twin register in the world. It is a very valuable Danish research resource.