Differentiating properties of occupancy rate and workload to estimate crowding : A Swedish national cross-sectional study
BACKGROUND: Emergency department (ED) crowding causes increased patient morbidity and mortality. ED occupancy rate (OR; patients by treatment beds) is a common measure of crowding, but the comparability of ORs between EDs is unknown. The objective of this investigation was to investigate differences in ORs between EDs using staff-perceived workload as reference.METHODS: This was a national cross-s