Fig. 4
From: A generic method for evaluating crowding in the emergency department
The empirical cumulative distribution function of max queues in the ED. The dotted red line indicates the point of 100 % bed occupancy (i.e. a queue length of 19). On weekdays there was a risk that 19 or more patients being present in the ED of 54 %, 56 % and < 1 % at some point during day, evening and night shift respectively. In weekends the risk was 21 %, 27 % and < 1 %