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CHA2DS2 VASc Score Calculator

Work out cha2ds2 vasc score instantly with clear inputs, formula shown and shareable results.

About CHA2DS2 VASc Score Calculator

Sums the CHA2DS2-VASc components — age, sex, heart failure, hypertension, diabetes, vascular disease and prior stroke — and reports the published annual stroke rate.

Formula

CHA2DS2-VASc

Age >=75 = 2, age 65-74 = 1, female sex = 1, prior stroke/TIA = 2, plus 1 each for heart failure, hypertension, diabetes and vascular disease (maximum 9)

Worked example

With the default values below, CHA2DS2 VASc Score Calculator returns CHA2DS2-VASc score of 4. Change any input above and every figure here is recalculated in your browser.

Inputs used

Ageaccepts 18–110 years
72 years
Sexone of Male, Female
Female
One-point factors presentaccepts 0–4
2
Prior stroke, TIA or thromboembolismone of Yes (2 points), No
No

Results

CHA2DS2-VASc score
4
Reported annual stroke rate
4.8%
Points from age
1
Guideline note
Oral anticoagulation generally recommended for men scoring 2 or more and women scoring 3 or more

Step by step

  1. 1Values used
  2. 2CHA2DS2-VASc
  3. 3CHA2DS2-VASc score= 4
  4. 4Reported annual stroke rate= 4.8
  5. 5Points from age= 1
  6. 6Guideline note= Oral anticoagulation generally recommended for men scoring 2 or more and women scoring 3 or more

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Why does sex score a point?

Female sex is a risk modifier rather than an independent factor, which is why the treatment threshold is one point higher in women.

Which risks are quoted?

The annual stroke rates come from the large Swedish cohort published by Friberg and colleagues.

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CHA2DS2 VASc Score Calculator – Calculate CHA2DS2-VASc score