Love, J., Karp, D., Delgado, M., et al. (2016). National Differences in Regional Emergency Department Boarding Times: Are US Emergency Departments Prepared for a Public Health Emergency? (Abstract only.) Disaster Medicine and Public Health Preparedness. 10(4):576-582.
The authors examined differences in patient boarding times in U.S. areas at risk for public health emergencies. They found that 86% of at-risk hospital referral regions had high boarding times (suggesting greater vulnerability), though it is important to note the limitations associated with drawing conclusions solely based on daily capacity.