Table 1

Characteristics of the study population

CharacteristicCoronary heart disease casesRandom population
All variables differed significantly (p<0.0001) between cases and controls, except current smoking status.
Sample size352418
% male70%44%
Mean current age (SD) (range)48.1 (7.4) (29–74)43.2 (14.3) (20–70)
Mean age at diagnosis (SD) (range)39.3 (5.0) (22–51)Not applicable
% diabetes14%4%
% hypertension44%13%
Mean body mass index (SD) (range), kg/m229.3 (5.7) (16–61)26.7 (6.2) (15–58)
% current smokers30%25%
Qualifying events:Not applicable
    Angiogram >70% stenosis15%
    Coronary artery bypass graft15%
    Myocardial infarction54%
    Angioplasty12%
    Other4%