Figure 2. Ischemic stroke rates within 1 year, divided by CHA₂DS₂‐VASc score.

Ischemic stroke rates per 100 patient‐years within 1 year, divided by CHA₂DS₂‐VASc score, among 6368 patients with new‐onset atrial fibrillation following coronary artery bypass grafting. Numbers above the bars denote ischemic strokes. CHA₂DS₂‐VASc indicates congestive heart failure, hypertension, age ≥75 years, diabetes, previous stroke or TIA [transient ischemic attack], vascular disease, age 65 to 74 years, sex category female.