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. 2021 Jun 3;185(2):343–353. doi: 10.1530/EJE-21-0232

Table 1.

Baseline characteristics of the group of insulin-treated patients with type 2 diabetes and the group of controls matched according to age, sex and BMI. Binary data are presented as n (%) and continuous variables are presented as mean (s.d.) or median (interquartile range).

Type 2 diabetes (n = 21) Controls (n = 21) P
Age (years) 62.8 (6.5) 62.2 (8.3) 0.805
Female 5 (24%) 5 (24%) 1.000
BMI (kg/m2) 29.0 (4.2) 29.2 (3.5) 0.873
HbA1c (mmol/mol) 51.0 (5.4) 34.3 (3.3) <0.001
HbA1c (%) 6.8 (0.5) 5.3 (0.3) <0.001
FPG (mmol/L) 7.2 (1.7) 5.7 (0.3) <0.001
C-peptide (pmol/L) 259 (174–370)a 440 (344–573) 0.006
Insulin treatment 21 (100%) NA
 Basal 12 (57%)
 Basal/bolus 4 (19%)
 Insulin mix 5 (24%)
Daily insulin dose (IU) 38 (25–60) NA
Oral glucose-lowering drugs 16 (76%) NA
 Metformin 15 (71%)
 SGLT2i 7 (33%)
 DDP-4i 4 (19%)
Diabetes duration (years) 15.3 (6.6) NA
Impaired awareness 6 (29%) NA
Neuropathy 18 (86%) NA
Retinopathy 7 (33%) NA
Nephropathy 3 (14%) NA
Hypertension 18 (86%) 4 (19%) <0.001
 Beta-blockers 4 (19%) 1 (5%)
 Non-dihydropyridine calcium antagonist 1 (5%) 0 (%)
Systolic blood pressure (mmHg) 138.0 (12.4) 137.0 (11.0) 0.794
Diastolic blood pressure (mmHg) 80.3 (7.5) 82.6 (7.3) 0.324
Heart rate (b.p.m) 67.1 (10.7) 60.0 (9.6) 0.027
Creatinine (µmol/L) 87.6 (25.2) 83.0 (10.3) 0.452
Potassium (mmol/L) 4.1 (0.4) 4.1 (0.3) 0.778

aFasting levels while on active insulin treatment.

DDP-4i, dipeptidyl peptidase-4 inhibitor; FPG, fasting plasma glucose; SGLT2i, sodium-glucose transport protein 2 inhibitor; T2D, type 2 diabetes.