CHA₂DS₂-VASc Score Calculator
Calculate the CHA₂DS₂-VASc score for stroke risk stratification in atrial fibrillation patients.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
CHA₂DS₂-VASc Score
0/ 9
Annual Stroke Risk
0%
How to Use This Calculator
- Enter 0 or 1 for CHF, hypertension, age ≥ 75, diabetes, prior stroke/TIA, vascular disease, age 65–74, and female sex.
- Review CHA₂DS₂-VASc Score and annual stroke risk (%).
- Score ≥ 2 (men) or ≥ 3 (women) generally warrants anticoagulation in atrial fibrillation.
What each input means
- Congestive Heart Failure
- History of CHF or LV dysfunction (+1 point).
- Hypertension
- Resting BP >140/90 or on antihypertensives (+1 point).
- Age >= 75
- Age 75 or older (+2 points).
- Diabetes Mellitus
- Fasting glucose >125 or on treatment (+1 point).
- Prior Stroke/TIA/Thromboembolism
- Previous stroke, TIA, or systemic embolism (+2 points).
- Vascular Disease
- Prior MI, PAD, or aortic plaque (+1 point).
- Age 65-74
- Age between 65 and 74 (+1 point).
- Sex
- Biological sex (+1 point for female).
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersCongestive Heart Failure = 0, Hypertension = 0, Age >= 75 = 0, Diabetes Mellitus = 0 = 8 input(s) provided
- Calculate CHA₂DS₂-VASc ScoreCHA₂DS₂-VASc Score0 = 0
- Calculate Annual Stroke RiskAnnual Stroke Risk0 = 0%
- Calculate Anticoag. RecommendationAnticoag. Recommendation0 = 0
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