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. 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 6. Annualized Rates of Death by CHADS2 and CHA2DS2-VASc Scores.

Construct, Level N Death
Events Annual %
CHADS2 Score
0 1760 175 0.87
1 2879 494 1.57
2 922 309 3.53
3 299 97 3.49
4+ 121 63 6.13
CHA2DS2-VASc Score
1 951 56 0.50
2 1794 204 1.00
3 1799 345 1.80
4 911 307 3.53
5 343 133 4.18
6+ 183 93 6.28