Table 5

Characteristics of Incident Coronary Heart Disease cases and non-cases in the Atherosclerosis Risk in Communities cohort, stratitifed by race


Whites
African Americans

Cases
Non-Cases

Cases
Non-Cases


(n = 1,168)
(n = 8,802)

(n = 319)
(n = 3,119)




Mean (SEM)
Mean (SEM)
P**
Mean (SEM)
Mean (SEM)
P**


Age (years)
55.7 (0.2)
53.9 (0.06)
<0.0001
55 (0.3)
53.1 (0.1)
<0.0001
Age at event (years)
63.9 (0.2)
--

63.0 (0.4)
--

Body Mass Index (kg/m2)
27.8 (0.1)
26.8 (0.05)
<0.0001
30 (0.3)
29.5 (0.1)
0.1
HDL Cholesterol (mg/dL)
42.8 (0.4)
52.2 (0.2)
<0.0001
48.6 (0.8)
56.0 (0.3)
<0.0001
Total Cholesterol (mmol/L)
5.82 (0.03)
5.5 (0.01)
<0.0001
5.84 (0.07)
5.51 (0.02)
<0.0001



%
%
P**
%
%
P**


Males
69.4
42.2
<0.001
49.5
35.9
<0.001
Diabetes
20.2
6.6
<0.001
34.2
16.4
<0.001
Hypertension
38.6
23.7
<0.001
72.7
52.1
<0.001
Smoking
31.4
23.6
<0.001
42
27.9
<0.001

SEM = Standard error of the mean

*P-value comparing means or proportions between cases and non-cases

At the baseline visit

Knowles et al. BMC Medical Genetics 2008 9:23   doi:10.1186/1471-2350-9-23