Bayesian analysis of genetic association across tree-structured routine healthcare data in the UK Biobank.

Bayesian analysis of genetic association across tree-structured routine healthcare data in the UK Biobank.
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DOI:
10.1038/ng.3926
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发表时间:
2017-09
期刊:
影响因子:
30.8
通讯作者:
McVean G
McVean G
中科院分区:
生物学1区
文献类型:
--
作者:
Cortes A;Dendrou CA;Motyer A;Jostins L;Vukcevic D;Dilthey A;Donnelly P;Leslie S;Fugger L;McVean G

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Genetic discovery from the multitude of phenotypes extractable from routine healthcare data can transform our understanding of the human phenome and accelerate progress towards precision medicine. However, a critical question when analysing high-dimensional and heterogeneous data is how to best interrogate increasingly specific subphenotypes whilst retaining statistical power to detect genetic associations. Here we develop and employ a novel Bayesian analysis framework that exploits the hierarchical structure of diagnosis classifications to analyse genetic variants against UK Biobank disease phenotypes derived from self-reporting and hospital episode statistics. Our method displays a more than 20% increase in power to detect genetic effects over other approaches and identifies novel associations between classical human leukocyte antigen (HLA) alleles and common immune-mediated diseases (IMDs). By applying the approach to genetic risk scores (GRSs) we reveal the extent of genetic sharing between IMDs and expose differences in disease perception or diagnosis with potential clinical implications.
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