Table IV.

Prevention of stroke in women with atrial fibrillation [23, 24]

Guidelines	Class, level, generalizability index
Coumarin – atrial fibrillation: in women with chronic or paroxysmal atrial fibrillation, coumarin should be administered, for INR to be maintained at a level of 2.0-3.0, unless the risk for a stroke is<1%, or there is a high risk of bleeding	I, A, 1
Aspirin – atrial fibrillation: in women with chronic or paroxysmal atrial fibrillation, aspirin can be administered, in a dose of 325 mg/daily, if there is a contraindication for administration of coumarin, or the risk of a stroke is<1%	I, A, 1