Extreme sampling design in genetic association mapping of quantitative trait loci using balanced and unbalanced case-control samples.

Abstract excerpt

It is extremely expensive to conduct large sample size array- or sequencing based genome scale association studies. For a quantitative trait, an extreme case-control study design may improve the power and reduce the cost of variant calling. We investigated the performance of extreme study design when various proportions of samples are selected from the tails of phenotype distribution. Using simulations, we show...

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