Adding of Sitagliptin on Insulin Therapy Effectively and Safely Reduces a Hemoglobin A1c Level and Glucose Fluctuation in Japanese Patients with Type 2 Diabetes

Table 1

Characteristics of diabetic patients.

Number of patients	216
Gender (male/female)	126/90
Age (years old)	65±12
Duration of diabetes (years)	15.8±9.1
BMI	24.9±4.5
Initial HbA1c (%)	8.56±1.50
Initial dose of insulin (U/day)	29.0±18.6
Fasting serum CPR (nmol/L)^a	0.47±0.37
Postprandial serum CPR (nmol/L)^b	0.79±0.44
Within-day glucose variability (%)^c	23.8±10.5
Day-to-day glucose variability (%)^c	18.6±9.1

Abbreviations are shown in text. Data are expressed as means ± S.D. or numbers of patients. ^a𝑛=102, ^b𝑛=96, and ^c𝑛=115.