In Figure 4(e), the AUCs of IFIT3, IFIT1, BST2, RTP4, and BTBD1 were separately 0.667, 0.673, 0.554, 0.692, and 0.797, indicating that these genes could become potential diagnostic biomarkers for type 2 diabetics. This evidence concerns the gene BTBD1 and type 2 diabetes mellitus.