SLC22A1 and chronic myelogenous leukemia, BCR-ABL1 positive: Haplotype 6 (H6: AGC) for the SLC22A1 gene (rs628031/rs683369/rs1867351) conferred about eight-fold higher risk (OR = 8.309, 95% CI 1.756–39.310, p = 0.008) of CML development compared to other haplotypes.