Table 3 Associations between change in TC and risk of CHD and stroke subtypes.

From: Changes in total cholesterol level and cardiovascular disease risk among type 2 diabetes patients

TC level before T2D diagnosis (mg/dL)

Low (< 180 mg/dL)

Middle (180–240 mg/dL)

High (≥ 240 mg/dL)

TC level after T2D diagnosis (mg/dL)

Low

Middle

High

Low

Middle

High

Low

Middle

High

Number of subjects (N)

3681

1815

148

4367

7663

1245

1093

2395

1415

CHD subtypes

 Angina (I20)

  Number of cases (n)

104

61

7

129

258

55

27

75

72

  aHR

1

1.15

1.59

0.92

1

1.15

0.63

0.62

1

  95% CI

Reference

0.84–1.59

0.73–3.46

0.74–1.14

Reference

0.85–1.55

0.40–0.99

0.45–0.87

Reference

 Chronic IHD (I25)

  Number of cases (n)

37

26

1

41

97

17

9

28

23

  aHR

1

1.41

0.66

0.79

1

0.96

0.61

0.73

1

  95% CI

Reference

0.85–2.35

0.09–4.85

0.54–1.14

Reference

0.57–1.63

0.28–1.35

0.42–1.28

Reference

 Myocardial infarction (I21–I24)

  Number of cases (n)

25

26

2

30

90

16

7

24

18

  aHR

1

2.24

2.72

0.63

1

1.07

0.57

0.78

1

  95% CI

Reference

1.28–3.91

0.62–11.99

0.41–0.95

Reference

0.62–1.84

0.23–1.41

0.41–1.47

Reference

Stroke subtypes

 Ischemic stroke (I63)

  Number of cases (n)

109

74

8

96

265

51

23

70

69

  aHR

1

1.38

2.35

0.72

1

1.05

0.62

0.60

1

  95% CI

Reference

1.03–1.87

1.12–4.89

0.57–0.91

Reference

0.77–1.42

0.38–1.01

0.42–0.84

Reference

 Other stroke (I67–I69)

  Number of cases (n)

27

27

3

42

69

17

11

28

20

  aHR

1

1.93

3.06

1.18

1

1.40

1.00

0.89

1

  95% CI

Reference

1.12–3.32

0.89–10.50

0.80–1.74

Reference

0.81–2.40

0.46–2.15

0.49–1.59

Reference

 Cerebral infarction without ischemic stroke (I65–I66)

  Number of cases (n)

18

10

2

23

62

13

9

18

13

  aHR

1

0.98

3.09

0.69

1

1.13

1.47

0.84

1

  95% CI

Reference

0.45–2.14

0.68–13.95

0.42–1.11

Reference

0.62–2.08

0.60–3.56

0.40–1.74

Reference

 Hemorrhagic stroke (I60–I62)

  Number of cases (n)

25

15

1

23

52

5

3

14

8

  aHR

1

1.16

1.14

0.87

1

0.51

0.71

1.03

1

  95% CI

Reference

0.61–2.21

0.15–8.59

0.53–1.43

Reference

0.20–1.29

0.18–2.80

0.42–2.51

Reference

  1. aHR adjusted hazard ratio analyzed by Cox proportional hazards regression analysis adjusted for age, sex, socioeconomic status, body mass index, smoking status, alcohol consumption, physical activity, blood pressure, fasting serum glucose, anti-diabetic medication, and lipid-lowering medication.
  2. TC total cholesterol, T2D type 2 diabetes mellitus, CHD coronary heart disease, N, n number, CI confidential interval, IHD ischemic heart disease.
  3. *Results for a stroke subtype (not specified as hemorrhage or infarction stroke, I64) were not provided due to small number of cases (n = 21).