CHADS₂ Score

Calculate stroke risk in patients with atrial fibrillation using the CHADS₂ scoring system.

Congestive Heart Failure: Hypertension: Age ≥75: Diabetes: Stroke / TIA history:

Your score will appear here.

Interpretation & References

Score 0: Low risk

Score 1: Moderate risk

Score ≥2: High risk; consider anticoagulation

Reference: Gage BF, et al. JAMA. 2001;285:2864–2870.