💓 CHA2DS2-VASc Stroke Risk Calculator Simulator

Age and Sex Categories Start the Score

Age and sex give the earliest points on the CHA2DS2-VASc scale.

• +2 pts: Age ≥75 (highest single non-stroke weight)
• +1 pt: Age 65–74 (intermediate age bracket)
• +1 pt: Female sex (sex category component)
• +0 pts: Age <65 (no age points)

Age and sex scoring

Age and sex are the first two components scored.

Heart Failure and Hypertension Add Points

Congestive heart failure and hypertension each add one point.

• +1 pt: CHF/LV dysfunction (C in CHA2DS2-VASc)
• +1 pt: Hypertension (H in CHA2DS2-VASc)
• +2 pts: Combined max (if both present)
• up to 4: Running subtotal (with stage 1 points)

CHF and hypertension scoring

Both conditions add one point each toward the total.

Diabetes and Vascular Disease Continue the Stack

Diabetes mellitus and vascular disease each contribute one point.

• +1 pt: Diabetes mellitus (D in CHA2DS2-VASc)
• +1 pt: Vascular disease (V in CHA2DS2-VASc)
• +2 pts: Combined max (if both present)
• up to 6: Running subtotal (with prior stages)

Diabetes and vascular scoring

Two more single-point risk factors join the stack.

Prior Stroke or TIA Carries Double Weight

A prior stroke, TIA, or thromboembolism adds two full points.

• +2 pts: Prior stroke/TIA/TE (S2 in CHA2DS2-VASc)
• 2x: Weight vs others (double single-factor weight)
• up to 8: Running subtotal (with prior stages)
• 9: Max possible score (full scale ceiling)

Prior stroke scoring

Prior cerebrovascular events double the point weight.

Total Score Converts to Annual Stroke Risk

All stacked points map to an annual stroke risk percentage.

• 0%: Score 0 (annual stroke risk)
• 6.7%: Score 5 (annual stroke risk)
• 15.2%: Score 9 (annual stroke risk)
• 9: Max score (full point ceiling)

Score to risk mapping

Total points translate into an annual stroke risk percentage.