42
Management
Table 12. Thromboembolic Event Rates by Point Score for
ATRIA, CHADS
2
, and CHA
2
DS
2
-VASc Risk Scores*
Points
ATRIA
Events Person-years Rate per 100 Person-years
0 2 2,652 0.08
1 12 2,819 0.43
2 14 1,419 0.99
3 13 1,780 0.73
4 19 2,960 0.64
5 36 3,614 0.99
6 83 4,346 1.91
7 119 4,768 2.50
8 151 3,913 3.86
9 104 2,400 4.33
10 75 1,181 6.35
11 31 501 6.18
12 20 183 10.95
13 4 53 7.52
14 2 12 16.36
15 0 7 0
All 685 32,609 2.10
* Black lines identify thresholds for low-, moderate-, and high-risk categories for the 3 stroke
risk point scores using published cut points.
†
e CHADS
2
score assigns points as follows: 1 point each for the presence of congestive
heart failure, hypertension, age ≥75 y, and diabetes mellitus and 2 points for history of
stroke/transient ischemic attack.
‡
e CHA
2
DS
2
-VASc score assigns points as follows: 1 point each for congestive
heart failure/le ventricular dysfunction, hypertension, diabetes mellitus, vascular disease,
age 65 to 74 y, and female sex, and 2 points each for age ≥75 years and stroke/transient
ischemic attack/thromboembolism.
Reproduced with permission from Singer DE, et al. Copyright 2013, e Authors.
Published on behalf of the American Heart Association, Inc., by Wiley-Blackwell.
