Fig. 1From: Effect of sitagliptin on blood glucose control in patients with type 2 diabetes mellitus who are treatment naive or poorly responsive to existing antidiabetic drugs: the JAMP studyStudy design. *1 Criteria for inadequate blood glucose control: HbA1c level ≥6.9% (52 mmol/mol) or fasting blood glucose level ≥130 mg/dL. *2 Specific investigational tests (optional): GA, 1.5AG, C-peptide, proinsulin-to-insulin ratioBack to article page