The relative frequency of lymphocytes (CD3+, CD19+, CD20+, CD56+) expressing CX3CR1 (Fig. 2A and B) as well as absolute frequency of CX3CR1+ lymphocytes (Supporting Information Table 1) were significantly suppressed in died compared to survived individuals without DM only (Fig. 2C), and no difference in the expression of CD16 and HLA‐DR was observed (Fig. 2A and B). Here, NCAM1 is linked to diabetes mellitus.