The association of anemia and thrombocytopenia with GSTP1 c.313A>G, ABCB1 c.1236C>T, and ABCB1 c.3435C>T SNPs and key clinical features were evaluated by multivariate regression (as explained in the statistical methods) and are shown in Table 4. Here, ABCB1 is linked to anemia (phenotype).