• Reference [1,2]
CHADS₂ risk criteria Score
Prior stroke, TIA, or thromboembolism 2
Age ≥ 75 1
Hypertension 1
Diabetes 1
Heart Failure 1

  • Reference [1]
Annual risk of stroke based on CHADS₂ score
CHADS₂ score Stroke Rate (%/year)
0 1.9
1 2.8
2 4
3 5.9
4 8.5
5 12.5
6 18.2


  • Reference [12]
CHA₂DS₂-VASc risk criteria Score
Prior stroke, TIA,
or thromboembolism
2
Age ≥ 75 2
Hypertension 1
Diabetes 1
Heart Failure 1
Vascular disease
(CAD or PVD)
1
Age 65 - 74 1
Female sex 1

  • Reference [12]
Annual risk of stroke based on CHA₂DS₂-VASc score
CHA₂DS₂-VASc SCORE Stroke Rate
(%/year)
0 0
1 1.3
2 2.2
3 3.2
4 4.0
5 6.7
6 9.8
7 9.6
8 6.7
9 15.2


  • Reference [12]
CHA₂DS₂-VASc SCORE Treatment
≥ 2 One of the following:
Warfarin
Dabigatran
Rivaroxaban
Apixaban
1 One of the following:
No therapy
Aspirin
Anticoagulant therapy
0 No therapy


  • Reference [2]
CHADS₂ score Therapy
0 None or Aspirin
≥ 1 Anticoagulation
(Warfarin INR 2 - 3)













    What is PMID?    PI = Manufacturer's Package Insert