I hope this helps:
Calcium scores of 0 identify individuals in the “lowest-risk” group with 10 year risk for cardiac events less than 5%.
Calcium scores from 81 to 400 identify individuals at increased risk for cardiac events and many of these individuals will be re-stratified to the “intermediate-risk” or “high-risk groups”.
Calcium scores above 400 identifies individuals in the “high-risk” group and these individuals also have a high likelihood (>90%) of having at least one significantly obstructed coronary vessel (>70% stenosis).
Individuals with super-high CAC scores, CAC scores > 1000, have an annual cardiac event rates in the range of…