Framingham Heart Disease Risk Calculator

Framingham Risk Score

Input Fields

Gender

MenWomen

Age

20-3435-3940-4445-4950-5455-5960-6465-6970-7475-79

Total Cholesterol

<160160-199200-239240-279≥280

HDL Cholesterol

≥6050-5940-49<40

Systolic BP

<120120-129130-139140-159≥160

Smoker

YesNo

Treated for high blood pressure

YesNo

CalculateReset

Calculate automaticallyIf enabled, the result will update automatically when you change any value.

Your Results

Score

10-Year Risk of Developing CHD

Leave a Comment

How did this result make you feel?

0😀 Like 0💡 Helpful 0😕 Confused 0😞 Disappointed 0❌ Inaccurate

Framingham Risk Score Calculation Formula

$$\text{Risk (\%)} = 100 \times \left(1 – S_0(t)^{\exp(\sum \beta_i x_i – \text{Mean Risk Score})} \right)$$

Explanation:

• $$S_0(t)$$ is the baseline survival probability at 10 years.
• $$\beta_i$$ are regression coefficients for risk factors.
• $$x_i$$ are patient variables (age, gender, total cholesterol, HDL, systolic BP, smoker, diabetes).
• The equation differs for men and women and uses gender-specific coefficients from Framingham data.

The Framingham Risk Score is widely used by clinicians to estimate an individual’s 10-year cardiovascular risk. It incorporates key risk factors like age, total cholesterol, HDL cholesterol, systolic blood pressure (treated or untreated), smoking status, and diabetes. Based on the score, individuals are categorized into low, intermediate, or high risk, guiding clinical decisions regarding lifestyle changes, medication, or further diagnostic testing. Separate scoring systems are used for males and females, with variations in risk thresholds.