Table 1 Baseline characteristics of the study population, overall and by AID system.

From: Effects of automated insulin delivery systems on glucose control in subgroups of adults with type 1 diabetes in clinical practice over 2 years in Sweden

 

Total

(n = 142)

Tandem

Control IQ

(n = 92)

MiniMed

780G

(n = 50)

Age (years)

41.9 [14.2]

40.4 [14.0]

44.7 [14.1]

Female sex, n (%)

58 (40.8)

41 (44.6)

17 (34.0)

Diabetes duration (years)

23.3 [12.3]

21.5 [11.8]

26.6 [12.7]

Time in range (70–180 mg/dL; 3.9–10.0 mmol/L), (%)

56.4 [17.3]

53.1 [17.6]

62.6 [15.2]

HbA1c (%)

7.3 [1.1]

7.4 [1.2]

7.2 [0.9]

HbA1c (mmol/mol)

56.6 [11.7]

57.2 [12.7]

55.7 [9.8]

Smoking status, n (%)

Current

6 (4.5)

2 (2.3)

4 (8.3)

Former

24 (17.9)

17 (19.8)

7 (14.6)

Never

104 (77.6)

67 (77.9)

37 (77.1)

BMI (kg/m2)

27.5 [4.5]

27.3 [4.8]

27.8 [4.0]

Macroalbuminuria, n (%)

4 (3.0)

1 (1.2)

3 (6.4)

Microalbuminuria, n (%)

5 (3.8)

4 (4.7)

1 (2.1)

eGFR (mL/min/1.73 m²)

106 [96–117]

111 [98–119]

102 [89–111]

Retinopathy, n (%)

Mild

49 (36.3)

32 (37.2)

17 (34.7)

Moderate

19 (14.1)

11 (12.8)

8 (16.3)

Severe

22 (16.3)

9 (10.5)

13 (26.5)

Previous MI, CABG, or PCI, n (%)

4 (3.0)

1 (1.2)

3 (6.3)

Previous amputation, n (%)

2 (1.5)

1 (1.2)

1 (2.1)

Treatment prior to AID, n (%)

MDI

38 (26.8)

31 (33.7)

7 (14.0)

CSII

104 (73.2)

61 (66.3)

43 (86.0)

CGM system prior to AID, n (%)

Dexcom G6

90 (65.2)

89 (98.9)

1 (2.1)

Guardian 3

19 (13.8)

0 (0.0)

19 (39.6)

Guardian 4

29 (21.0)

1 (1.1)

28 (58.3)

  1. Continuous variables are reported as mean [standard deviation] or median [IQR], as appropriate. Categorical variables are reported as number (percentage).
  2. BMI, body mass index; CABG, coronary artery bypass graft; CSII, continuous subcutaneous insulin infusion; eGFR, estimated glomerular filtration rate; HbA1c, hemoglobin A1c; IQR, interquartile range; MDI, multiple daily injections; MI, myocardial infarction; PCI, percutaneous coronary intervention.
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