• Media type: Text; Report; E-Book
  • Title: On an extended interpretation of linkage disequilibrium in genetic case-control association studies
  • Contributor: Dickhaus, Thorsten [Author]; Stange, Jens [Author]; Demirhan, Haydar [Author]
  • Published: Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2014
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.34657/2812
  • ISSN: 0946-8633; 2198-5855
  • Keywords: contingency table ; chi-squared statistic ; correlation structure ; Delta method ; Fisher's exact test ; odds ratio ; Asymptotic Gaussianity
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  • Description: We are concerned with statistical inference for 2 x 2 x K contingency tables in the context of genetic case-control association studies. Multivariate methods based on asymptotic Gaussianity of vectors of test statistics require information about the asymptotic correlation structure among these test statistics under the global null hypothesis. We show that for a wide variety of test statistics this asymptotic correlation structure is given by the linkage disequilibrium matrix of the K loci under investigation. Three popular choices of test statistics are discussed for illustration.
  • Access State: Open Access