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. Author manuscript; available in PMC: 2013 Jun 26.
Published in final edited form as: Circ Cardiovasc Genet. 2012 Dec 16;6(1):82–88. doi: 10.1161/CIRCGENETICS.112.963058

Table 1.

Characteristics of Participants by Cohort and Race

Characteristics ARIC
CHS
EA AA EA AA
Participants, n 6460 1539 3031 514
Age, y 62.86 ± 5.61 61.68 ± 5.70 72.74 ± 5.37 72.82 ± 5.55
Age range, y (53.00, 75.00) (53.00, 75.00) (65.00, 95.00) (65.00, 92.00)
Female, % 56.11 64.85 62.22 64.98
hs-cTnT, μg/L* 0.004 (0.003, 0.007) 0.005 (0.003, 0.008) 0.005 (0.003, 0.009) 0.005 (0.003, 0.01)
Participants with hs-cTnT below the detectable limit, % 34.0 32.6 37.1 40.3
Body mass index, kg/m2 28.11 ± 5.19 30.47 ± 6.18 26.29 ± 4.45 28.41 ± 5.39
Systolic blood pressure, mmHg 125.56 ± 18.34 133.16 ± 19.74 135.23 ± 21.13 141.75 ± 22.04
Diastolic blood pressure, mmHg 70.04 ± 9.76 75.84 ± 10.46 70.57 ± 11.15 76.43 ± 11.50
Total cholesterol, mg/dl 202.39 ± 35.6 199.48 ± 37.73 212.34 ± 38.48 207.98 ± 38.60
Triglyceride, mg/dl 148.9 ± 83.95 113.59 ± 64.74 162.27 ± 146.04 112.92 ± 55.72
Low-density, lipoprotein, mg/dl 123.25 ± 32.35 123.65 ± 35.37 129.72 ± 34.84 127.25 ± 34.72
High-density lipoprotein, mg/dl 49.88 ± 16.31 53.25 ± 16.53 55.21 ± 15.65 58.99 ± 15.70
Current smoker, % 14.23 17.8 10.22 16.54
Prevalent hypertension, % 39.36 64.32 52.89 56.61
Prevalent diabetes, % 11.72 24.98 12.44 20.23
*

hs-cTnT levels, median (quartile 1, quartile 3). For continuous variables, mean values ± standard errors are shown. Categorical variables are given as percentage. EA indicates European Americans; AA, African Americans.

In ARIC, prevalent hypertension included use of antihypertensive medication or measured blood pressure (systolic blood pressure ≥ 140 mmHg, diastolic blood pressure ≥ 90 mmHg); prevalent diabetes was defined as fasting glucose levels ≥ 126 mg/dl, nonfasting glucose levels ≥ 200 mg/dl, or self-reported diagnosis of diabetes or use of diabetic medication. In CHS, prevalent hypertension included measured blood pressure (systolic blood pressure ≥140% mmHg, diastolic blood pressure ≥90 mmHg) or use of antihypertensive drug and reports of physician diagnosis of hypertension; prevalent diabetes was defined as fasting glucose levels ≥ 126 mg/dl, or use of insulin or an oral hypoglycemic drug.