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. 2014 Jan;3(1):45–54. doi: 10.3978/j.issn.2225-319X.2013.12.06

Table 2. Expected event rates for primary outcome and relative risk reduction with LAA occlusion on top of usual care.

Therapy component of usual care % patients years on therapy component Control rate of primary outcome per year Expected relative risk reduction with LAA occlusion (%) Treatment rate of primary outcome per year
No antithrombotic 5 5.1 63 1.9
Antiplatelet 30 3.7 63 1.4
Warfarin 45 1.7 25 1.3
Novel anticoagulant 20 1.5 25 1.1
Overall usual care 100 2.5 36 1.6

LAA, left atrial appendage.