Characteristics, treatment patterns, and unmet needs of Japanese patients with atrial fibrillation Yukihiro Koretsune,1 Bruno Rossi,2 Kazuya Iwamoto,3 Edward CY Wang,4 Marco DiBonaventura,5 Jean-Baptiste Briere41Institute for Clinical Research, Osaka National Hospital, Osaka, Japan; 2Market Access, Bayer Yakuhin Ltd., Osaka, Japan; 3Medical Affairs Cardiovascular and Neurology, Bayer Yakuhin Ltd., Osaka, Japan; 4Health Economics and Outcomes Research, Bayer Yakuhin Ltd., Osaka, Japan; 5Health Outcomes Practice, Kantar Health, New York, NY, USABackground: Data on characteristics, comorbidities, health outcomes, and treatment patterns of patients with atrial fibrillation (AF) in Japan are scarce. The aim of this study was to address this gap in order to better understand the characteristics of Japanese AF patients.Methods and results: The 2008-2010 Japan National Health and Wellness Survey data sets were used in this study (N