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. Author manuscript; available in PMC: 2013 Sep 15.
Published in final edited form as: Am J Cardiol. 2012 Jun 20;110(6):891–896. doi: 10.1016/j.amjcard.2012.05.020

Table 3.

Distributions of abdominal aortic calcium in men and women stratified by 10-year cardiovascular event risk as defined by Framingham Risk Score.

Men (N=1665) Women (N=1601)
10-Year Risk <6% 6-20% >20% <6% 6-20% >20%
N 739 805 121 1203 386 12
25th percentile of AAC 0 0 535 0 25 769
50th percentile of AAC 0 99 2654 0 377 3548
75th percentile of AAC 4 983 5197 73 2082 5316
90th percentile of AAC 171 2970 9422 833 4059 6587

N=1601 for women (differs from prior tables with N=1602) due to missing covariates in one woman

AAC = abdominal aortic calcium, IQR = interquartile range. NREF = number of referent-group participants within each sex and age category, NREF (%) = percentage of referent participants among all participants within an age/sex category. NREF with AAC > 0 refers to the number of referent participants within each sex and age category with non-zero AAC; the corresponding percentage is calculated based on number of referent participants only (NREF is the denominator).