How to Use Framingham Risk Calculator
Use Framingham Risk Calculator by entering the major cardiovascular risk factors requested on the page: age, sex, total cholesterol, HDL cholesterol, systolic blood pressure, treatment status, smoking, and diabetes.
Make sure cholesterol and blood pressure units match the labels. Use current smoking status and current diabetes status rather than remote history unless your clinical protocol specifies otherwise.
Formula & Theory - Framingham Risk Calculator
The core calculation is:
Risk = 1 / (1 + e^-z) × 100
z combines age, sex, total cholesterol, HDL, systolic blood pressure, treated blood pressure, smoking, and diabetesFramingham-style risk estimation combines multiple risk factors because cardiovascular events rarely depend on one measurement alone. Age and sex set a baseline, lipids describe atherogenic burden, blood pressure reflects vascular load, and smoking or diabetes adds major risk.
This implementation uses a transparent logistic approach for browser-only calculation. For formal care decisions, use the risk model recommended by your region or guideline and interpret the result with patient history.
Use Cases for Framingham Risk Calculator
Use it for prevention counseling, risk-factor education, lipid and blood-pressure discussions, or comparing how smoking cessation or HDL changes might affect estimated risk.
It is also helpful in public-health teaching because it demonstrates cumulative risk: several moderate factors can add up to a high 10-year risk.