Atrial fibrillation is a major public health issue in the US, affecting up to 3.2 million people and causing 100,000 strokes annually.
A trial fibrillation is the most frequent sustained arrhyth- mia seen in clinical practice, and the public health implications of this growing epidemic are sobering. Approximately 2.3 to 3.2 million people are currently affected in the United States; the risk of stroke ranges from 1% to 7% per year; and atrial fibrillation accounts for 45% of embolic strokes annually, which amounts to 100 000 strokes per year. 1,2 Moreover, atrial fibrillation is an independent predictor of mortality in most studies.
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Freedman et al. (2009) studied this question.
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