Warfarin persistence among stroke patients with atrial fibrillation

•Evaluation of warfarin persistence and variables associated with discontinuation.•4 583 Swedish stroke/TIA patients on warfarin due to atrial fibrillation examined.•Persistence to warfarin was 69% after 2years, greater than previously reported.•Higher discontinuation when dementia, alcohol abuse, cancer, COPD and/or CHF.•Higher CHA2DS2VASc score and start-age lead to lower persistence.