Absolute CV Risk Calculator

Absolute CV Risk Equation:

\[ Risk \% = f(Age, SBP, Chol, Smoking, Diabetes) \]

Age:

years

Systolic Blood Pressure (SBP):

mmHg

Cholesterol:

mmol/L

Smoking:

Diabetes:

Absolute CV Risk:

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1. What is Absolute CV Risk?

Absolute CV (Cardiovascular) Risk estimates the probability of experiencing a cardiovascular event (such as heart attack or stroke) over a specific time period, typically 5-10 years. It combines multiple risk factors to provide a comprehensive assessment.

2. How Does the Calculator Work?

The calculator uses the AUS/Framingham risk equation:

\[ Risk \% = f(Age, SBP, Chol, Smoking, Diabetes) \]

Where:

\( Age \) — Age in years
\( SBP \) — Systolic Blood Pressure in mmHg
\( Chol \) — Total Cholesterol in mmol/L
\( Smoking \) — Smoking status (binary: 0=No, 1=Yes)
\( Diabetes \) — Diabetes status (binary: 0=No, 1=Yes)

Explanation: The equation calculates 5-10 year cardiovascular disease risk based on Australian chart guidelines, incorporating multiple modifiable and non-modifiable risk factors.

3. Importance of CV Risk Assessment

Details: Comprehensive CV risk assessment helps identify individuals who would benefit most from preventive interventions, guiding treatment decisions for blood pressure, cholesterol management, and lifestyle modifications.

4. Using the Calculator

Tips: Enter age in years, systolic blood pressure in mmHg, total cholesterol in mmol/L, and select smoking and diabetes status. All values must be valid and within reasonable physiological ranges.

5. Frequently Asked Questions (FAQ)

Q1: What time period does this risk estimate cover?
A: This calculator estimates 5-10 year absolute cardiovascular disease risk based on the AUS/Framingham model.

Q2: What are the risk categories?
A: Typically: Low risk (<10%), Moderate risk (10-15%), High risk (15-20%), Very high risk (>20%).

Q3: Why use absolute risk instead of individual factors?
A: Absolute risk provides a more comprehensive assessment by considering the combined effect of multiple risk factors.

Q4: Are there limitations to this calculation?
A: The equation may be less accurate in very young or elderly populations, and in individuals with established cardiovascular disease.

Q5: How often should CV risk be reassessed?
A: Recommended every 2-5 years depending on initial risk level and changes in risk factors.