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A genetic association test through combining two independent tests
Journal article   Open access   Peer reviewed

A genetic association test through combining two independent tests

Zhongxue Chen, Qingzhong Liu and Kai Wang
Genomics (San Diego, Calif.), Vol.111(5), pp.1152-1159
09/2019
DOI: 10.1016/j.ygeno.2018.07.010
PMID: 30009923
url
https://doi.org/10.1016/j.ygeno.2018.07.010View
Published (Version of record) Open Access

Abstract

Gene- and pathway-based variant association tests are important tools in finding genetic variants that are associated with phenotypes of interest. Although some methods have been proposed in the literature, powerful and robust statistical tests are still desirable in this area. In this study, we propose a statistical test based on decomposing the genotype data into orthogonal parts from which powerful and robust independent p-value combination approaches can be utilized. Through a comprehensive simulation study, we compare the proposed test with some existing popular ones. Our simulation results show that the new test has great performance in terms of controlling type I error rate and statistical power. Real data applications are also conducted to illustrate the performance and usefulness of the proposed test.
Burden test Gene-set Genetic association SKAT

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