Advanced CHADS2 Stroke Risk Calculator

Assess annual stroke risk in patients with non-valvular atrial fibrillation.

Congestive Heart Failure (C) (+1 Point)

Hypertension / High Blood Pressure (H) (+1 Point)

Age ≥ 75 Years (A) (+1 Point)

Diabetes Mellitus (D) (+1 Point)

Previous Stroke, TIA, or Thromboembolism (S2) (+2 Points)

Total CHADS2 Score: 0

Estimated Risk Category: Low Risk

Approximate Annual Stroke Risk: 1.9%

Score	Approximate Annual Stroke Risk (%)	Suggested Treatment Strategy
0	1.9%	Aspirin alone or no therapy
1	2.8%	Aspirin or Oral Anticoagulant
2	4.0%	Oral Anticoagulant Recommended
3	5.0%	Oral Anticoagulant Recommended
4	8.5%	Oral Anticoagulant Recommended
5	12.5%	Oral Anticoagulant Recommended
6	18.2%	Oral Anticoagulant Recommended

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Advanced CHADS2 Stroke Risk Calculator | Medical Tool