Table 2 Baseline characteristics of study participants by self-reported birth weight categories, ARIC study, 1996-2008

N (%)

449 (4%)

8,597 (85%)

1,086 (11%)

Age, years (mean ± SD)

62.7 ± 5.6

62.7 ± 5.7

62.8 ± 5.6

0.89

Male, %

22.1

42.6

59.1

<0.001

African American, %

26.7

21.1

16.3

<0.001

Less than high school degree, %

25.2

18.3

15.8

<0.001

BMI, kg/m² (mean ± SD)

28.5 ± 6.0

28.7 ± 5.5

29.4 ± 5.9

0.001

Height, cm (mean ± SD)

162.6 ± 8.6

168.2 ± 9.0

172.5 ± 9.1

<0.001

Diabetes, %

19.8

15.8

14.6

0.04

SBP, mmHg (mean ± SD)

129.3 ± 19.1

127.4 ± 18.9

125.4 ± 18.0

<0.001

Hypertensive medication use, %

47.4

42.4

39.2

0.01

Current smoker, %

17.8

14.2

17.3

<0.001

Prevalent heart failure, %

1.3

1.3

2.2

0.06

Prevalent myocardial infarction, %

3.3

2.7

2.9

0.69

Incident atrial fibrillation, %

10.9

8.6

9.2

0.21