NPPB and peripheral arterial disease: As shown in Table 3, univariate logistic regression analysis revealed that BMI, lymphocyte count, and eGFR were negative predictors of the presence of DPN, and age, diabetic duration, FBG, HbA1c, neutrophil count, NLR, fibrinogen, creatinine, BNP, and the prevalence of DR, PAD, and DFU were positive predictors of the presence of DPN.