Boyle, A., Beniuk, K., Higginson, I., and Atkinson, P. (2012). Emergency Department Crowding: Time for Interventions and Policy Evaluations. Emergency Medicine International. .
This article discusses the causes and consequences of emergency department crowding, and interventions to address crowding at the hospital level, and at the policy level. Table 1 illustrates a comparison of emergency department crowding scales by calculation and outcome, and includes a notes section.