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Table 2 The annual risks of thromboembolism (ischemic stroke, peripheral embolism, or pulmonary embolism) for CHA2DS2-VASc, adjusted for aspirin use [12]

From: The effects of misclassification in routine healthcare databases on the accuracy of prognostic prediction models: a case study of the CHA2DS2-VASc score in atrial fibrillation

CHA2DS2-VASc score

Risk (events/persons)

0

0 (0/103)

1

0.7 (1/162)

2

1.9 (3/184)

3

4.7 (8/203)

4

2.3 (4/208)

5

3.9 (3/95)

6

4.5 (2/57)

7

10.1 (2/25)

8

14.2 (1/9)

9

100 (1/1)

  1. The original study deriving the CHA2DS2-VASc consisting of 1084 AF patients with a follow-up of 1 year, considering ischemic stroke, peripheral embolism, or pulmonary embolism as outcomes for thromboembolism