Longitudinal variance-components analysis of the Framingham Heart Study data
The Framingham Heart Study offspring cohort, a complex data set with irregularly spaced longitudinal phenotype data, was made available as part of Genetic Analysis Workshop 13. To allow an analysis of all of the data simultaneously, a mixed-model- based random-regression (RR) approach was used. The...
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pubmed-18664572007-05-11 Longitudinal variance-components analysis of the Framingham Heart Study data Macgregor, Stuart Knott, Sara A White, Ian Visscher, Peter M Proceedings The Framingham Heart Study offspring cohort, a complex data set with irregularly spaced longitudinal phenotype data, was made available as part of Genetic Analysis Workshop 13. To allow an analysis of all of the data simultaneously, a mixed-model- based random-regression (RR) approach was used. The RR accounted for the variation in genetic effects (including marker-specific quantitative trait locus (QTL) effects) across time by fitting polynomials of age. The use of a mixed model allowed both fixed (such as sex) and random (such as familial environment) effects to be accounted for appropriately. Using this method we performed a QTL analysis of all of the available adult phenotype data (26,106 phenotypic records). BioMed Central 2003-12-31 /pmc/articles/PMC1866457/ /pubmed/14975090 http://dx.doi.org/10.1186/1471-2156-4-S1-S22 Text en Copyright © 2003 Macgregor et al; licensee BioMed Central Ltd http://creativecommons.org/licenses/by/2.0 This is an open access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
repository_type |
Open Access Journal |
institution_category |
Foreign Institution |
institution |
US National Center for Biotechnology Information |
building |
NCBI PubMed |
collection |
Online Access |
language |
English |
format |
Online |
author |
Macgregor, Stuart Knott, Sara A White, Ian Visscher, Peter M |
spellingShingle |
Macgregor, Stuart Knott, Sara A White, Ian Visscher, Peter M Longitudinal variance-components analysis of the Framingham Heart Study data |
author_facet |
Macgregor, Stuart Knott, Sara A White, Ian Visscher, Peter M |
author_sort |
Macgregor, Stuart |
title |
Longitudinal variance-components analysis of the Framingham Heart Study data |
title_short |
Longitudinal variance-components analysis of the Framingham Heart Study data |
title_full |
Longitudinal variance-components analysis of the Framingham Heart Study data |
title_fullStr |
Longitudinal variance-components analysis of the Framingham Heart Study data |
title_full_unstemmed |
Longitudinal variance-components analysis of the Framingham Heart Study data |
title_sort |
longitudinal variance-components analysis of the framingham heart study data |
description |
The Framingham Heart Study offspring cohort, a complex data set with irregularly spaced longitudinal phenotype data, was made available as part of Genetic Analysis Workshop 13. To allow an analysis of all of the data simultaneously, a mixed-model- based random-regression (RR) approach was used. The RR accounted for the variation in genetic effects (including marker-specific quantitative trait locus (QTL) effects) across time by fitting polynomials of age. The use of a mixed model allowed both fixed (such as sex) and random (such as familial environment) effects to be accounted for appropriately. Using this method we performed a QTL analysis of all of the available adult phenotype data (26,106 phenotypic records). |
publisher |
BioMed Central |
publishDate |
2003 |
url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1866457/ |
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1611396201145434112 |