期刊
CIRCULATION
卷 116, 期 13, 页码 1473-1481出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCULATIONAHA.107.705202
关键词
calcium; epidemiology; imaging; atherosclerosis; coronary disease; aorta
Background-Parental premature cardiovascular disease (CVD) is a risk factor for coronary heart disease ( CHD). We related validated parental premature CVD with the subclinical measures of coronary artery (CAC) and abdominal aortic (AAC) calcification in the community. Methods and Results-We studied 2 generations of Framingham Heart Study subjects who underwent multidetector computed tomography measurements of CAC and AAC and who had 2 parents in the study. Subjects included 797 Framingham Offspring ( mean age, 63 years; 56% women) and 1238 Third Generation (Gen3) ( mean age, 46 years; 47% women) participants free of CVD. Generalized estimating equations adjusted for major CVD risk factors were used to relate validated parental premature CVD and CHD to CAC and AAC, defined by > 90th percentile age- and sex-specific cut points from a healthy subsample. Parental premature CVD was associated with CAC among Gen3 ( odds ratio=2.17 [1.41 to 3.33]; P < 0.001) and nonsignificantly among Offspring (odds ratio=1.42 [0.91 to 2.22]; P=0.12). Parental premature CHD was associated with CAC among Gen3 (odds ratio=2.22 [1.22 to 4.01]) but not Offspring. Parental premature CVD was not associated with AAC in either cohort. Parental premature CHD was associated with AAC among Gen3 (odds ratio=1.65 [0.99 to 2.75]; P=0.05) but not among Offspring. The magnitude of risk conferred was greater for paternal than maternal premature CVD. Conclusions-Parental premature CVD is associated with CAC, and premature CHD is associated with AAC, after adjustment for risk factors, particularly in younger middle-aged adults. Risk conferred by parental premature CVD on vascular calcification may be mediated through novel mechanisms not accounted for by classic CVD risk factors known to cause atherosclerosis.
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