Table 1b.

Definition of relative and absolute distributions of coronary artery calcium in the healthy referent sample consisting of women and men free of clinically apparent cardiovascular disease or traditional risk factors. Prevalence and absolute cutpoints of coronary artery calcium by age in men and women.

	Men					Women
Age (years)	<45	45-54	55-64	65-74	75+	<45	45-54	55-64	65-74	75+
N	371	250	108	57	17	290	318	154	69	19
>0	20.8%	42.4%	68.5%	89.5%	100.0%	6.2%	10.4%	44.2%	60.9%	77.8%
>100	1.9%	10.4%	31.5%	59.6%	58.8%	0.7%	0.9%	9.1%	18.8%	50.0%
>400	0.5%	2.4%	8.3%	33.3%	47.1%	0.0%	0.0%	1.9%	2.9%	22.2%