Table 1 Characteristic of patients (N = 16)

Age (years)^a

67.0 (58.0-71.0)

Sex (men/women)

11/5

BMI (kg/m²)^a

25.0 (22.0-27.9)

Duration of diabetes (years)^a

14.0 (8.5-24.75)

HbA1c (%)^a

9.1 (8.3-10.4)

Glycated albumin (%)^a

22.9 (19.8-26.8)

eGFR (mL/min/1.73 m²)^a

70.0 (62.6-82.4)

Previous medication of diabetes

Insulin^b

7

Oral hypoglycemic agents

Sulfonylurea^b

5

Metformin^b

9

Alpha-glucosidase inhibitor^b

4

Glinide^b

2

DPP-4 inhibitor^b

0

Administration of metformin at STEP 0^b

10