Comparison of most significant variant concordance between projection-based population stratification and PCA-based stratification among 100 simulated GWAS
(A) The comparison of significant variant concordance for matching population panels. X axis shows the number of top variants. Y axis shows the concordance fraction. Blue boxplots depict the concordance between projection-based stratification and PCA-based stratification. Red boxplots show the concordance between GWAS with no population stratification and GWAS with PCA-based stratification.
(B) Concordance of most significant variants when projection is performed with a mismatching set of reference populations.