Question 1

What is the 10-year ASCVD risk score?

Accepted Answer

The 10-year ASCVD risk score estimates the probability of a first hard atherosclerotic cardiovascular event — nonfatal heart attack, coronary heart disease death, or fatal/nonfatal stroke — within 10 years. It is calculated with the 2013 ACC/AHA Pooled Cohort Equations from age, sex, race, cholesterol, blood pressure, and smoking and diabetes status.

Question 2

What do the ASCVD risk categories mean?

Accepted Answer

The ACC/AHA groups 10-year ASCVD risk into four bands: low (below 5%), borderline (5% to 7.4%), intermediate (7.5% to 19.9%), and high (20% or greater). These thresholds help frame a shared decision about statin therapy, but they are a starting point for a clinician conversation, not an automatic prescription.

Question 3

Who should not use the Pooled Cohort Equations?

Accepted Answer

The Pooled Cohort Equations were derived and validated for adults aged 40 to 79 without existing cardiovascular disease. They are not validated below 40 or above 79, and they can over- or under-estimate risk in some populations. Always interpret the result with a qualified clinician.