Table 2 Relative risks of coronary heart disease by using baseline HbA1c quintiles.

From: Association of high normal HbA1c and TSH levels with the risk of CHD: a 10-year cohort study and SVM analysis

 

HbA1c quintiles (%)

P for trend

<4.4

4.5~4.9

5.0~5.4

5.5~5.9

6.0~6.5

Sample size (n)

244

73

38

83

67

 

Events (n)

7

4

2

8

18

 

Events/1000 person-year

2.8

5.4

5.3

10.1

31.6

 

Age-adjusted RR (95% CI)

1.0

2.288 (0.638-8.206)

1.634 (0.324-8.251)

3.250 (1.132-9.333)

11.638 (4.592-29.497)

<0.001

Multivariable-adjusted RR (95% CI)*

1.0

1.725 (0.465–6.402)

1.106 (0.207–5.917)

2.900 (0.952–8.832)

11.222 (4.173–30.183)

<0.001

  1. HbA1c, hemoglobin A1c; *adjusted for age, smoking and drinking history, BMI, blood pressures, history of coronary heart disease in first-degree relatives, and serum lipids profiles; RR, relative risk; 95% CI, 95% confidence intervals.
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