Fig. 1From: A practical method for predicting frequent use of emergency department care using routinely available electronic registration data a. Distribution of patients stratified by year, 2008 to 2010; b. Emergency department utilization in 2009 and 2010 for patients with 4 or more visits in 2008; c. Emergency department utilization in 2009 and 2010 for patients with fewer visits less than 4 in 2008Back to article page