Hypothesis Testing in GWAS and Statistical Issues with Compensation in Clinical Trials
Contributors: Betensky, Rebecca; Lange, Christoph; Blacker, Deborah
Published: 2013
Language: eng
Description: We first show theoretically and in simulation how power varies as a function of SNP correlation structure with currently-implemented gene-based testing methods. We propose alternative testing methods whose power does not vary with the correlation structure. We then propose hypothesis tests for detecting prevalence-incidence bias in case-control studies, a bias perhaps overrepresented in GWAS due to currently used study designs. Lastly, we hypothesize how different incentive structures used to keep clinical trial participants in studies may interact with a background of dependent censoring and result in variation in the bias of the Kaplan-Meier survival curve estimator.
Notes: Keywords: bias, compensation, dependent censoring, dimension-reduction, GWAS, U-statistic.

Thesis Ph.D. Harvard University 2013