ESA_ED_Crowding is an R package developed by NHS England’s Economics and Strategic Analysis (ESA) Team to explore Emergency Department (ED) crowding.
Crowding is measured in terms of:
- Number of patients staying at ED.
- Number of patients staying longer than 6 hours at ED.
- Number of majors and resus patients staying in the ED per cubicle.
The analysis isolates the impact of different factors on crowding including:

Data sources used include:
