PR and RI were positively related to age, diabetes duration, and insulin use (PR: P < 0.001, P = 0.002, P < 0.001; RI: P < 0.001, P = 0.003, P = 0.004, respectively) and negatively correlated with diastolic BP and mean BP (PR: P = 0.007, P = 0.02; RI: P < 0.001, P = 0.003, respectively) by Pearson correlation analysis (Table 5). Here, INS is linked to diabetes mellitus.