Similarly, the KIR AA plus C1 compound genotype was significantly more frequent amongst the healthy controls (54.5%) than either the ALL (44.5% adult, p = 0.003 and 43.7% pediatric, p = 0.018) or AML (47.5% adult, p = 0.033 and 44.6% pediatric, ns) patients. Here, KIR3DL1 is linked to acute lymphoblastic leukemia.