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Figure 1 Annual TE Rates Across Risk Groups Using 5 Risk Stratification Schemes Used to Predict AF-Related TE
The double-barred lines represent 95% confidence intervals. ACCP = American College of Chest Physicians Conference on Antithrombotic and Thrombolytic Therapy; AF = atrial fibrillation; AFI = Atrial Fibrillation Investigators; CHADS2 = congestive heart failure, hypertension, age 
75 years, diabetes mellitus, and prior stroke or transient ischemic attack; SPAF = stroke prevention in atrial fibrillation; TE = thromboembolism.