title: The Norwegian Twin Registry from a public health perspective: a research update.
abstract: We describe the importance of the Norwegian Twin Registry (NTR) for research in public health and provide examples from several programs of twin research at the Norwegian Institute of Public Health (NIPH), including the Nordic Twin Study of Cancer, our epigenetics platform, and our large program of research in mental health. The NTR has become an integral component of a national strategy for maximizing the research potential from Norwegian registries and biobank-based studies. The information provided herein builds upon and complements our recent report describing the establishment of the NTR and the cohorts comprising it. Although Norway has a long tradition in twin research, the centralization and administration of the twin data through a single register structure is fairly recent. The NTR was established in 2009 and currently includes 47,989 twins covering birth years 1895-1960 and 1967-1979; 31,440 of these twins have consented to participate in medical research (comprising 5,439 monozygotic pairs, 6,702 dizygotic same-sexed pairs, and 1,655 dizygotic opposite-sexed pairs). DNA from approximately 4,800 twins is banked at the NIPH biobank and new studies continuously add new data to the registry. The value of NTR data is greatly enhanced through record linkage possibilities offered by Norway's many nation-wide registries (medical, demographic, and socio-economic) and several studies are already taking advantage of these linkage opportunities for research.
authors.affiliation: Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway.
authors.forename: Thomas S
authors.initials: TS
authors.lastname: Nilsen
authors.forename: Gun Peggy
authors.initials: GP
authors.lastname: Knudsen
authors.forename: Kristina
authors.initials: K
authors.lastname: Gervin
authors.forename: Ingunn
authors.initials: I
authors.lastname: Brandt
authors.forename: Espen
authors.initials: E
authors.lastname: Røysamb
authors.forename: Kristian
authors.initials: K
authors.lastname: Tambs
authors.forename: Ragnhild
authors.initials: R
authors.lastname: Orstavik
authors.forename: Robert
authors.initials: R
authors.lastname: Lyle
authors.forename: Ted
authors.initials: T
authors.lastname: Reichborn-Kjennerud
authors.forename: Per
authors.initials: P
authors.lastname: Magnus
authors.forename: Jennifer R
authors.initials: JR
authors.lastname: Harris
mesh_terms: D018070:Biological Specimen Banks; D035843:Biomedical Research; D002648:Child; D015331:Cohort Studies; D004200:Diseases in Twins / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D059647:Gene-Environment Interaction; D055106:Genome-Wide Association Study; D006801:Humans; D008297:Male; D009664:Norway / Q000453:epidemiology; D018579:Patient Selection; D011634:Public Health; D012042:Registries; D014429:Twins, Dizygotic / Q000235:genetics*; D014430:Twins, Monozygotic / Q000235:genetics*