Epidemiology, management, and outcomes of atrial fibrillation among 30 million citizens in Shanghai, China from 2015 to 2020: A medical insurance database study

Atrial fibrillation(AF) has become a significant public health concern in China, with population aging and urbanization. Data screening was performed for 30,244,930 subjects with medical insurance in the Shanghai Municipal Health Commission database between 2015 and 2020. Patients diagnosed with AF were identified and further assessed for treatment information and clinical outcomes, as well as sex differences and impact of COVID-19 pandemic on AF managment. AF prevalence was 0.88% in Shanghai, which increased with age and reached 6.70% at subjects 80 years and over. AF was more prevalent in women compared with men (0.89% vs. 0.88%, p