Figure 2: Principal component analysis of GWAS samples.
From: Two new susceptibility loci 1q24.2 and 11p11.2 confer risk to severe acne
Principal component analyses (PCA) were performed in our 2,062 GWAS samples (1,031 cases and 1,031 controls). The case–control matching and the low lambda GC values (λGC=1.01) suggested minimal evidence of population stratification.
