CHA2DS2-VASc risk score for stroke risk:
Calculates stroke risk for patients with atrial fibrillation.
Research authors: Lip GY, Nieuwlaat R, Pisters R, Lane DA, Crijns HJ.
Version: 1.14
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  • Cardiology
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Calculated CHA2DS2-VASc risk score: points

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This model calculates stroke risk for patients with atrial fibrillation. The CHA2DS2-VASc risk score (acronym: Birmingham 2009) fared marginally better (C-statistic, 0.606) than CHADS(2). However, those classified as low risk by the CHA2DS2-VASc and NICE schema were truly low risk with no TE events recorded, whereas TE events occurred in 1.4% of low-risk CHADS(2) subjects. When expressed as a scoring system, the CHA2DS2-VASc showed an increase in TE rate with increasing scores (P value for trend = .003).

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This model is provided for educational, training and information purposes. It must not be used to support medical decision making, or to provide medical or diagnostic services. Read our full disclaimer.

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