Ebell et al used classification and regression tree (CART) analysis to evaluate patients after in-hospital cardiopulmonary arrest. One model reported was supervised. The authors are from the University of Georgia, Duke University, and the Johns Hopkins University.
Patient selection: in-hospital cardiopulmonary arrest
Outcome: survival to discharge with good or fair neurological status (CPC 1)
High probability of survival: 17-40%
Average probability of survival: 10-15%
Low probability of survival: 5-7%
Very low probability of survival: 1-3%
Parameters:
(1) Cerebral Performance Category (CPC) from 1 to 5
(2) admitted from home or transferred from another hospital
(3) mechanical ventilation
(4) age
(5) sepsis
(6) acute stroke
(7) hepatic insufficiency/failure
(8) renal insufficiency/failure
Good cerebral function (CPC 1)
|
Sepsis
|
Mechanical Ventilation
|
Renal Insufficiency
|
Survival
|
|
No
|
NA
|
NA
|
21.2%
|
|
Yes
|
No
|
NA
|
14.8%
|
|
Yes
|
Yes
|
Yes
|
3.7%
|
|
Yes
|
Yes
|
No
|
7.9%
|
Impaired cerebral function (CPC 2)
|
Admitted
|
Mech Vent
|
Sepsis
|
Stroke
|
Hepatic Failure
|
Age
|
Survival
|
|
No
|
NA
|
NA
|
NA
|
NA
|
NA
|
2.3%
|
|
Yes
|
No
|
NA
|
NA
|
NA
|
NA
|
10.3%
|
|
Yes
|
Yes
|
Yes
|
NA
|
NA
|
NA
|
3.9%
|
|
Yes
|
Yes
|
No
|
Yes
|
NA
|
NA
|
1%
|
|
Yes
|
Yes
|
No
|
No
|
Yes
|
NA
|
6%
|
|
Yes
|
Yes
|
No
|
No
|
No
|
>=32
|
6.5%
|
|
Yes
|
Yes
|
No
|
No
|
No
|
< 32
|
4.4%
|
Impaired cerebral function (CPC 3-5)
|
Admitted from
|
Age
|
Renal Insufficiency
|
Survival
|
|
No
|
NA
|
NA
|
2.3%
|
|
Yes
|
>=74
|
NA
|
1%
|
|
Yes
|
< 74
|
Yes
|
2%
|
|
Yes
|
< 74
|
No
|
3.9%
|
