Table 1 Clinical and laboratory characteristics of individuals with type 1 diabetes, divided by HbA1 _c quintiles

26.1 ± 12.0

26.7 ± 11.6

25.2 ± 11.4

23.9 ± 10.5

20.9 ± 9.1

< 0.05^a

12.2 ± 10.1

12.9 ± 8.7

11.9 ± 7.9

10.5 ± 7.5

8.9 ± 6.4

< 0.05^b

45.6 ± 19.9

52.7 ± 22.8

55.2 ± 20.0

58.5 ± 21.5

62.1 ± 23.5

< 0.05^c

22.5 ± 3.7

23.2 ± 3.9

23.1 ± 3.9

22.8 ± 4.4

21.7 ± 3.8

< 0.05^d

6.6 ± 0.64

8.0 ± 0.32

9.1 ± 0.33

10.5 ± 0.55

13.6 ± 1.77

< 0.05^e

7.77 ± 4.12

9.30 ± 5.23

10.68 ± 5.81

11.22 ± 5.81

12.96 ± 7.37

< 0.05^f

101.9 ± 12.8

100.9 ± 12.9

102.1 ± 13.4

101.2 ± 13.2

99.7 ± 12.8

NS

4.08 ± 1.03

4.21 ± 1.05

4.34 ± 1.13

4.57 ± 1.01

4.86 ± 1.19

< 0.05^g

1.34 ± 0.46

1.38 ± 0.38

1.37 ± 0.34

1.43 ± 0.41

1.38 ± 0.37

NS

2.31 ± 0.78

2.42 ± 0.79

2.53 ± 0.88

2.67 ± 0.86

2.90 ± 0.99

< 0.05^h

0.92 ± 0.64

0.95 ± 0.72

1.00 ± 0.72

1.04 ± 0.70

1.31 ± 1.18

< 0.05^a

49.0

46.9

42.7

39.6

36.9

0.034ⁱ

10.2

14.7

10.6

7.5

5.6

0.007ⁱ

7.6

8.5

12.3

13.9

25.2

< 0.001ⁱ

21.8

14.0

12.6

10.0

16.6

0.008ⁱ

31.6

34.2

40.4

50.0

57.2

< 0.001ⁱ

44.7

56.6

51.4

47.5

45.6

< 0.044ⁱ

4.7

6.6

4.7

2.4

6.7

NS