Skip to main content
. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Am J Med. 2013 Oct 17;126(12):10.1016/j.amjmed.2013.05.023. doi: 10.1016/j.amjmed.2013.05.023

Table 2. Annualized Rates of Strokea / TIA by CHADS2 and CHA2DS2-VASc Scores.

Construct, Level N Stroke1 / TIA
Events Annual %
CHADS2 Score
0 1760 71 0.36
1 2879 219 0.72
2 922 106 1.27
3 299 38 1.45
4+ 121 23 2.43
CHA2DS2-VASc Score
1 951 22 0.20
2 1794 96 0.48
3 1799 152 0.82
4 911 108 1.30
5 343 51 1.71
6+ 183 28 2.02
a

Does not include hemorrhagic stroke