%change in DPP-4
  r p
Age -0.03 0.841
Duration of diabetes 0.15 0.367
Serum creatinine -0.14 0.429
Body mass index -0.29 0.085
%change in body mass index 0.39 0.017
Waist circumference -0.21 0.213
%change in waist circumference 0.21 0.204
HbA1c 0.06 0.718
%change in HbA1c 0.2 0.247
HbA1c: Hemoglobin A1c; DPP-4: Dipeptidyl peptidase-4
Table 3: Correlation between percentage change in serum DPP-4 levels and other variables.