Figure 2.

Power curves of four statistics: the functional logistic regression, the PCA logistic regression, collapsing method and the pairwise logistic regression, where permutations were used to adjust for multiple testing for testing interaction between two genomic regions that consist of common variants as a function of an interaction measure at the significance level α=0.05 under the additive ∪ additive model, assuming 2000 cases and 2000 controls, and 10% of risk variants.