Lack of association of two common polymorphisms on 9p21 with risk of coronary heart disease and myocardial infarction; results from a prospective cohort study

Table 1 Baseline characteristics of all participants, and of cases with incident MI and incident CHD

Characteristics	All participants	MI cases	P value	CHD cases	P value
Number	6251	412	-	588	-
Age, mean (SD), y	69.5 (9.1)	70.3 (7.8)	0.02	68.6 (7.4)	0.23
Men, (%)	40.4	58.7	<0.001	61.2	<0.001
Body mass index, mean (SD), kg/m2	26.3 (3.7)	26.3 (3.5)	0.29	26.3 (3.4)	0.07
Waist circumference, mean (SD), cm	90.5 (11.2)	91.9 (10.0)	0.89	92.2 (10.2)	0.33
Systolic blood pressure, mean (SD), mm Hg	139.3 (22.2)	142.3 (21.9)	0.01	141.3 (21.7)	0.004
Diastolic blood pressure, mean (SD), mm Hg	73.7 (11.5)	73.7 (11.5)	0.77	73.7 (11.3)	0.38
Hypertension, (%)	34.3	40.6	0.006	40.2	0.002
Diabetes, (%)	10.5	17.0	<0.001	15.8	<0.001
Total cholesterol, mean (SD), mmol/L	6.6 (1.2)	6.9 (1.2)	<0.001	6.9 (1.2)	<0.001
HDL cholesterol, mean (SD), mmol/L	1.3 (0.4)	1.2 (0.3)	<0.001	1.2 (0.3)	<0.001
Current smoker, (%)	22.8	26.0	<0.001	27.1	<0.001
Former smoker, (%)	41.5	49.5		51.5

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