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 40%, that means you have more calcium in your heart arteries than 40% of men or women your age. And 60% have more calcium than you have.

percentile score 40-49%

In this study, a 40-49 percentile score was associated with a 14% ten year risk (2).

Any 10 year risk less than 7.5% is considered low risk. So your risk is in the intermediate, or moderately high range. Your risk is 2x the normal risk. In your risk group, the American Heart Association recommends taking statin therapy and working to reduce risk by eliminating other risk factors.

Write down that number: 14%.

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.