Abstract:
:For characterizing the genetic mechanisms of complex diseases familial data with multiple correlated quantitative traits are usually collected in genetic studies. To analyze such data, various multivariate tests have been proposed to investigate the association between the underlying disease genes and the multiple traits. Although these multivariate association tests may have better power performance than the univariate association tests, they suffer from loss of testing power when the genetic models of the putative genes are misspecified. To address the problem, in this paper we aim to develop a family-based robust multivariate association test. We will first establish the optimal multivariate score tests for the recessive, additive, and dominant genetic models. Based on these optimal tests, a maximum-type robust multivariate association test is then obtained. Simulations are conducted to compare the power of our method with that of other existing multivariate methods. The results show that the robust multivariate test does manifest the robustness in power over all plausible genetic models. A practical data set is applied to demonstrate the applicability of our approach. The results suggest that the robust multivariate test is more powerful than the robust univariate test when dealing with multiple quantitative traits.
journal_name
Ann Hum Genetjournal_title
Annals of human geneticsauthors
Hsieh TJ,Chang SH,Tai JJdoi
10.1111/ahg.12054subject
Has Abstractpub_date
2014-03-01 00:00:00pages
117-28issue
2eissn
0003-4800issn
1469-1809journal_volume
78pub_type
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journal_title:Annals of human genetics
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
pub_type: 杂志文章
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更新日期:1999-07-01 00:00:00
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
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journal_title:Annals of human genetics
pub_type: 杂志文章
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更新日期:1977-07-01 00:00:00
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
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journal_title:Annals of human genetics
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
pub_type: 杂志文章
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journal_title:Annals of human genetics
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journal_title:Annals of human genetics
pub_type: 杂志文章
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