Table 1.

Overview of results from the 20 scenarios tested over the five ‘what if’ questions

What if AEC unit capacity was increased with existing opening hours in place?
AEC capacityTotal completedNumber transferred to MAUAs %
513.5231.1569.73%
1024.3020.3745.60%
1529.5815.0933.78%
2030.6214.0531.45%
What if the AEC unit was open 24 hours per day, 7 days per week?
AEC capacityAverage time in system, minutesMinimum time in system, minutesMaximum time in system, minutes
5167866.0189.11335837.95
1073181.5456.79146958.50
15314.833.861560.07
20224.262.651281.22
What would weekends look like if the AEC unit was open 7 days per week with existing 8am–8pm opening hours?
AEC capacityTotal completedNumber transferred to MAUAs %
511.9310.4246.62%
1015.786.5729.40%
1515.916.4428.81%
2015.916.4428.81%
What if the AEC unit was open 5 days a week, but for an additional 4 hours of seeing and treating patients (but no admissions)?
AEC capacityTotal completedNumber transferred to MAUAs %
519.8822.8853.51%
1033.389.3821.94%
1538.754.019.38%
2039.503.267.62%
What would weekends look like if the AEC unit was open 7 days a week with an additional 4 hours of seeing and treating patients (but no admissions)?
AEC capacityTotal completedNumber transferred to MAUAs %
515.754.1320.77%
1017.632.2511.32%
1517.752.1310.71%
2017.752.1310.71%
  • ‘AEC capacity’ represents the number of patients that can be seen and treated simultaneously in the AEC unit, and is used as a proxy for size of the AEC unit. ‘Total completed’ records the number of patients that were seen, treated and discharged from the AEC unit. ‘Number transferred to MAU’ represents the difference between the total number of patients arriving at the AEC unit, and the number completed, thereby estimating the number remaining at closure of the AEC unit that would be admitted to the MAU. ‘As %’ represents the percentage of patients transferred to the MAU as a perccentage of the total the came into the AEC. For ‘what if?’ question 2, number completed and number transferred are no longer relevant, and instead we record the average, minimum and maximum time in system, including queuing for the AEC unit and time spent in the AEC unit. AEC = ambulatory emergency care; MAU = medical assessment unit.