Fig. 5.

Forest plot shows a comparative analysis of the occurrence of thromboembolism and stroke in patients with atrial fibrillation when evaluated by means of the CHA₂DS₂-VASc score. P ≥0.05 was considered statistically significant. The occurrence of thromboembolism or stroke when evaluated by means of the CHA₂DS₂-VASc score was not significantly different (P_diff=0.34).

AF = atrial fibrillation; CHA₂DS₂-VASc = congestive heart failure or left ventricular ejection fraction ≥0.40, hypertension, age ≥75 or 65–74 yr, diabetes mellitus, vascular disease, age, female sex, and prior stroke, transient ischemic attack, or thromboembolic event; CI = confidence interval; M-H = Mantel-Haenszel