The Danish Twin Registry

The Danish Twin Registry

The Registry was established in the 1950s with the aim of studying causes of cancer, and over the last years it has gradually been expanded so that it now comprises information about almost all twins born in Denmark since 1870. Today medical research is still essential for the many Danish and foreign researchers working with data from the Registry.

Population

The Danish Twin Registry contains information about more than 88,000 twin pairs born in Denmark since 1870, in addition to a number of triplets and quadruplets.

Period

Same sexed twin pairs

Opposite sexed twin pairs

The Danish Twin Registry

1870-1930

14,244

5,142

 

1931-1952

10,249

6,607

 

1953-1982

13,485

6,510

 

1983-2000

11,031

6,086

 

 2001-2006

 Survey coming up

 

2007-2013

Regularly updated

 

The oldest part of the registry consists of data on twins born from 1870 until 1930. Later on, the youngest part of the register (1982 - 2008) was formed and finally, in the late 1990s, twins born in the period 1931-1952 were traced in order to fill the gap between the two first parts of the registry.

Coverage in time

1870-2009 for all of Denmark.

Variables

Vital statistical master data from church books and the Central Office of Civil Registration. Information on health and life style. Information on causes of death. The Danish Twin Registry is being updated on the basis of questionnaire surveys, interviews, and clinical examinations.

External use

The guidelines for access to the twin data may be requested by approaching the scientific board of the Danish Twin Registry, tvilling@health.sdu.dk

Location

The Danish Twin Registry is located at the Faculty of Health Sciences at the University of Southern Denmark:
 
The Danish Twin Registry
J.B. Winsløws Vej 9B
DK-5000 Odense C
Telephone: +45 65 50 30 47
Fax: +45 65 50 36 36
E-mail: tvilling@health.sdu.dk


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