PGP and atrial fibrillation: Overall, 47.1 and 49.4% of patients had paroxysmal AF, 52.9 and 50.6% had nonparoxysmal AF, 43.0 and 40.8% had a history of oral anticoagulant treatment, and 7.6 and 6.0% concomitantly received at least one P-gp inhibitor, respectively.