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Stroke Research in GenomEUtwin

Published online by Cambridge University Press:  21 February 2012

David Gaist ,
Nancy L. Pedersen ,
Markku Koskenvuo ,
Søren Bak ,
Simona Giampaoli ,
Kaare Christensen  and
Jaakko Kaprio
David Gaist*
Affiliation:
Danish Twin Registry, University of Southern Denmark, Denmark; Department of Neurology, Odense University Hospital, Denmark. dg@dadlnet.dk
Nancy L. Pedersen
Affiliation:
Department of Medical Epidemiology and Statistics, Karolinska Institutet, Stockholm, Sweden.
Markku Koskenvuo
Affiliation:
University of Turku, Finland.
Søren Bak
Affiliation:
Danish Twin Registry, University of Southern Denmark, Denmark; Department of Neurology, Odense University Hospital, Denmark.
Simona Giampaoli
Affiliation:
Italian Twin Registry, Istituto Superiore di Sanità, Rome, Italy.
Kaare Christensen
Affiliation:
Danish Twin Registry, University of Southern Denmark, Denmark.
Jaakko Kaprio
Affiliation:
The Finnish Twin Cohort Study, Department of Public Health, University of Helsinki, Helsinki, Finland.
*
*Address for correspondence: David Gaist, MD, PhD, Danish Twin Registry, Epidemiology, Institute of Public Health, Sdr. Boulevard 23A, 5000 Odense C Denmark.

Abstract

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Stroke is one of the leading causes of severe disability and death in the world. In the present article we outline possibilities and limitations for future stroke research within the GenomEUtwin. The combined sample of twins born before 1958 from Denmark, Finland, and Sweden, and available for follow-up into the second millennium for non-fatal and fatal stroke events through national inpatient and death registers exceeds 70,000 twin pairs. This sample size will enable the study of genetic influences on stroke and major stroke subtypes. Large samples of twins in GenomEUtwin have been followed up repeatedly through interviews and questionnaires concerning a variety of exposures and potential risk factors for stroke. We briefly outline how this information can be combined with the health register information for epidemiologic and genetic epidemiologic studies of stroke. We also present the number of twin pairs concordant and discordant for stroke in Denmark, Finland and Sweden, and time lags between events for twins concordant for stroke. This information illustrates that the number of affected sib pairs for linkage studies is relatively limited, but the sample sizes are promising for association studies.

Type
Articles
Information
Twin Research and Human Genetics , Volume 6 , Issue 5 , 01 October 2003 , pp. 442 - 447
Copyright
Copyright © Cambridge University Press 2003