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

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

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