Combined CHA₂DS₂-VASc and HAS-BLED Calculator

Estimate stroke risk and bleeding risk in atrial fibrillation

CHA₂DS₂-VASc

Stroke risk assessment for atrial fibrillation

Age

<65

65-74

≥75

Sex

Male

Female

CHF history

No

Yes

Hypertension history

No

Yes

Stroke/TIA/thromboembolism history

No

Yes

Vascular disease history

No

Yes

Diabetes history

No

Yes

HAS-BLED

Major bleeding risk assessment

Hypertension

No

Yes

Abnormal liver/kidney function

No

Yes

Stroke history

No

Yes

Bleeding history

No

Yes

Labile INRs

No

Yes

Elderly (≥65 years)

No

Yes

Drugs/alcohol

No

Yes

CHA₂DS₂-VASc Score

0

HAS-BLED Score

0

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