Using the presence of DKD as the dependent variable (NDKD = 0, DKD = 1), univariate logistic regression analysis indicated that Hb, UREA, TP, Scr, eGFR, IL-6, TGF-β1, and CysC were potential factors influencing DKD (p < 0.05) (Supplementary Table S2). This evidence concerns the gene GSTM1 and diabetic kidney disease.