CHARGE-AF (5-year Atrial Fibrillation Risk)
CHARGE-AF (Alonso 2013): a 5-year incident-atrial-fibrillation risk model from age, height, weight, blood pressure, race, smoking, antihypertensive use, diabetes, heart failure, and prior MI.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age
- 65 years
- Height
- 170 cm
- Weight
- 80 kg
- Systolic BP
- 130 mmHg
- Diastolic BP
- 80 mmHg
- White race
- Yes
- Antihypertensive medication
- Yes
Result: CHARGE-AF 3.23% — estimated 5-year risk of incident atrial fibrillation.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Risk
- 5-year AF risk = 1 − 0.9718412736^exp(LP − 12.5815600). A routine-variable estimate used to select patients for AF screening; not an anticoagulation or monitoring order.
What you enter
- Age
- Height
- Weight
- Systolic BP
- Diastolic BP
- White race
- Current smoker
- Antihypertensive medication
The other 3 fields
- Diabetes
- Heart failure
- Prior myocardial infarction
How this is calculated
- Model
- LP = 0.508·(age/5) + 0.465·white + 0.248·(height/10) + 0.115·(weight/15) + 0.197·(SBP/20) − 0.101·(DBP/10) + 0.359·smoker + 0.349·antiHTN + 0.237·diabetes + 0.701·HF + 0.496·MI.
Alonso A, Krijthe BP, Aspelund T, et al. Simple risk model predicts incidence of atrial fibrillation in a racially and geographically diverse population: the CHARGE-AF consortium. J Am Heart Assoc. 2013;2(2):e000102. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.