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- W2646189686 abstract "Abstract Genetic association studies often collect a wide range of complex traits, including high-dimensional and structured omics measurements. The complex... Many genetic association studies collect a wide range of complex traits. As these traits may be correlated and share a common genetic mechanism, joint analysis can be statistically more powerful and biologically more meaningful. However, most existing tests for multiple traits cannot be used for high-dimensional and possibly structured traits, such as network-structured transcriptomic pathway expressions. To overcome potential limitations, in this article we propose the dual kernel-based association test (DKAT) for testing the association between multiple traits and multiple genetic variants, both common and rare. In DKAT, two individual kernels are used to describe the phenotypic and genotypic similarity, respectively, between pairwise subjects. Using kernels allows for capturing structure while accommodating dimensionality. Then, the association between traits and genetic variants is summarized by a coefficient which measures the association between two kernel matrices. Finally, DKAT evaluates the hypothesis of nonassociation with an analytical P-value calculation without any computationally expensive resampling procedures. By collapsing information in both traits and genetic variants using kernels, the proposed DKAT is shown to have a correct type-I error rate and higher power than other existing methods in both simulation studies and application to a study of genetic regulation of pathway gene expressions." @default.
- W2646189686 created "2017-06-30" @default.
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- W2646189686 date "2017-08-01" @default.
- W2646189686 modified "2023-10-10" @default.
- W2646189686 title "Powerful Genetic Association Analysis for Common or Rare Variants with High-Dimensional Structured Traits" @default.
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- W2646189686 doi "https://doi.org/10.1534/genetics.116.199646" @default.
- W2646189686 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5560787" @default.
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