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Correlations Between Live and Stillbirth Outcomes in Twin Pairs
- Article from:
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Human Biology
- Article date:
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February 1, 2008
- Author:
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;
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Copyright informationCopyright Wayne State University Press Feb 2008. Provided by ProQuest LLC. (Hide copyright information)
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Abstract
A relationship has been proposed to exist between individual outcomes (live or stillbirth) of twins in the same set. Here, we analyze this association between live births and stillbirths among individuals in different twin pairs. When national birth registers are analyzed, individuals in opposite-sex twin sets can be identified and the correlation between individual outcomes estimated. However, full information about the individuals in same-sex twin sets is not, as a rule, available, and consequently, correlation coefficients cannot be estimated, but upper and lower limits of the correlation coefficients can be obtained. The methods introduced here were applied to data from Sweden ...