CHADS₂ Calculator Online — Stroke Risk in Atrial Fibrillation

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By Pedro J Mira

The CHADS₂ score is a clinical prediction rule for estimating the risk of stroke in patients with atrial fibrillation. Although widely replaced by CHA₂DS₂-VASc, it remains useful for quick screening.

CHADS₂ Calculator

Classic Score

Select the risk factors present:

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