No differences by diabetes clinical classification (normal, IFG/IGT, or diabetes) were found for any cellular parameter except for total CD8 T cell count (cells/μL) [means(SD): normal 796.1 (361.8), IFG/IGT 1017.6 (590.2), diabetes: 661 (304.6), p = 0.034]. Here, CD8A is linked to diabetes mellitus.