Philipp Hofer, Michael Hagmann, Stefanie Brezina, Erich Dolejsi, Karl Mach, Gernot Leeb, Andreas Baierl, Stephan Buch, Hedwig Sutterlüty-Fall, Judith Karner-Hanusch, Michael M Bergmann, Thomas Bachleitner-Hofmann, Anton Stift, Armin Gerger, Katharina Rötzer, Josef Karner, Stefan Stättner, Melanie Waldenberger, Thomas Meitinger, Konstantin Strauch, Jakob Linseisen, Christian Gieger, Florian Frommlet, Andrea Gsur
Most genome-wide association studies (GWAS) were analyzed using single marker tests in combination with stringent correction procedures for multiple testing. Thus, a substantial proportion of associated single nucleotide polymorphisms (SNPs) remained undetected and may account for missing heritability in complex traits. Model selection procedures present a powerful alternative to identify associated SNPs in high-dimensional settings. In this GWAS including 1060 colorectal cancer cases, 689 cases of advanced colorectal adenomas and 4367 controls we pursued a dual approach to investigate genome-wide associations with disease risk applying both, single marker analysis and model selection based on the modified Bayesian information criterion, mBIC2, implemented in the software package MOSGWA...
November 17, 2017: Oncotarget