Parameters:
(1) number of critical care patients in the ED
(2) longest time in hours for an admitted patient waiting in the ED since admission
(3) number of patients in the waiting room
(4) total number of ED patients
(5) number of ED beds
(6) number of ED visits per year
ratio of ED patients to beds =
= (number of ED patients) / (number of ED beds)
|
Parameter
|
Points
|
|
number of critical care patients
|
3 * (number)
|
|
longest time
|
0.53 * (time)
|
|
number of patients in the waiting room
|
1.16 * (number)
|
|
ratio of patients to beds
|
20.66 * (ratio)
|
|
number of ED visits per year
|
(0.00126 * (number)) - (factor)
|
factor =
= (1.11*10^(-12)*(MAX((number)-18811,0)^3)) - (8.23*10^(-12)*(MAX((number)-43012,0)^3)) - (8.2 *10^(-12)*(MAX((number)-49466,0)^3)) - (1.08*10^(-12)*(MAX((number)-67273,0)^3))
score =
= SUM(points for all of the parameters) - 30.39
Interpretation:
• minimum score: 0
• maximum score: around 200
• The higher the score the greater the degree of overcrowding.
|
Scale
|
Status
|
|
<= 20
|
not busy
|
|
21 to 60
|
busy
|
|
61 to 100
|
extremely busy
|
|
101 to 140
|
overcrowded
|
|
141 to 180
|
severely overcrowded
|
|
181 to 200
|
dangerously overcrowded
|
