Using your percentile score:

Your percentile score is probably the best calcium scan estimate of your 10 year heart risk (1).

Not % blockage

Your percentile score is where you rank compared to a group of people your same age and gender. It is not your % blockage. If your percentile score is 50%, that means you have more calcium in your heart arteries than 50% of men or women your age. And 50% have more calcium than you have. It means your arteries are average for your age and sex. A percentile score of 59% means that your arteries are aging faster than you are.

percentile score 50-59%

In this study, a 50-59 percentile score was associated with a 19% ten year risk (2).

High risk is 20% or more. Your risk is twice as high as the normal risk.

Write down that number: 19%.

Then click NEXT to proceed to the next step.


  1. Because most events occur in the highest percentile groups, the percentile score is a more effective way to predict risk than the calcium score alone. Incorporating the percentile score, the MESA trial showed that the heart calcium score “was better than all the other risk factors combined for risk prediction.” Sharma, et al, Cardiac risk stratification: Role of the coronary calcium score. Vasc Health Risk Manag. 2010; 6: 603–611. Published online 2010 Aug 9. PMCID: PMC2922321 PMID: 20730016

  2. Raggi, et al. Use of electron beam tomography data to develop models for prediction of hard coronary events. Am Heart J 2001;141:375-82.