Patient selection: patient discharged from ICU to ward
Outcome: patient readmitted to the ICU during the same hospital stay
Parameters:
(1) age in years (from 15 to 95)
(2) sex
(3) elective admission to the ICU
(4) source of initial admission to the ICU
(5) APACHE II score on initial admission to ICU (from 0 to 45)
(6) number of days in ICU during previous stay
(7) discharged from ICU after hours
(8) acute renal failure in ICU
|
Parameter
|
Finding
|
Points
|
|
age in years
|
|
(0.10625*(age))-1.59375
|
|
sex
|
female
|
0
|
|
|
male
|
1.9
|
|
elective admission
|
yes
|
0
|
|
|
no
|
12.2
|
|
source of ICU admission
|
operating room or recovery
|
0
|
|
|
emergency room
|
9.5
|
|
|
another hospital
|
10.2
|
|
|
hospital ward
|
14.8
|
|
APACHE II score
|
|
MIN(20,(score)*0.444)
|
|
ICU stay
|
<7 days
|
0
|
|
|
7 or more days
|
17.4
|
|
discharged after hours
|
no
|
0
|
|
|
yes
|
3.9
|
|
acute renal failure
|
no
|
0
|
|
|
yes
|
9.9
|
total score =
= SUM(points for all 8 parameters)
Interpretation:
• minimum score: 0
• maximum score: around 89
• The higher the score the greater the risk for ICU readmission.
percent readmission to ICU =
= (0.008262 * ((score)^2)) - (0.3198 * (score)) + 7.51
