Hospital-level variation and predictors of admission after ED visits for atrial fibrillation: 2006 to 2011

From 2006 to 2011, ED visits for atrial fibrillation in the United States increased by almost a third, with a minimal change in ED admission rates. One-fifth of variation in admission rates is due to hospital site and not explained by hospital characteristics. Hospital-specific practice patterns may identify opportunities to increase outpatient management.