October 29, 2019 How many individuals in the United States have atrial fibrillation (AFib)?Individuals of which descent are more likely to have AFib?Individuals of which gender are more likely to have AFib?Compared with those without the condition, AFib increases an individual’s risk for stroke by how many times?Which risk factor accounts for 14% to 22% of AFib cases?[copy] undefined[copy] undefined