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Semiparametric analysis of case-control genetic data in the presence of environmental factors

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  • Yulia Marchenko

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    (StataCorp)

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    Abstract

    In the past decade, many statistical methods have been proposed for the analysis of case–control genetic data with an emphasis on haplotype-based disease association studies. Most of the methodology has concentrated on the estimation of genetic (haplotype) main effects. Most methods accounted for environmental and gene-environment interaction effects by utilizing prospective-type analyses that may lead to biased estimates when used with case–control data. Several recent publications addressed the issue of retrospective sampling in the analysis of case–control genetic data in the presence of environmental factors by developing new efficient semiparametric statistical methods. I present the new Stata command, haplologit, that implements efficient profile-likelihood semiparametric methods for fitting gene–environment models in the very important special cases of a) a rare disease, b) a single candidate gene in Hardy-Weinberg equilibrium, and c) independence of genetic and environmental factors.

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    File URL: http://repec.org/usug2008/london08_yulia.pdf
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    Bibliographic Info

    Paper provided by Stata Users Group in its series United Kingdom Stata Users' Group Meetings 2008 with number 08.

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    Date of creation: 11 Sep 2008
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    Handle: RePEc:boc:usug08:08

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    Web page: http://www.stata.com/meeting/uk08
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