Association with T1D conditional on the presence of the respective HLA-Bw4 epitope, tested in the joint copy number groupKIR3DS1-KIR3DL1 (a), and in the marginalKIR3DL1 (b) andKIR3DS1 (c) copy number groups. Here, KIR3DL1 is linked to type 1 diabetes mellitus.