Ahmed et al evaluated trauma patients who had a cardiopulmonary arrest during the first hour after arrival at the trauma center. The authors are from Jersey Shore University Medical Center in Neptune, New Jersey.
Parameters:
(1) age in years
(2) gender
(3) race
(4) penetrating injury
(5) ISS
(6) GCS motor score
(7) EMS transport time in minutes
(8) systolic blood pressure in mm Hg
(9) pulse
(10) head injury
(11) ACS level
Parameter
Finding
Points
age in years
-0.007 * (age)
gender
female
0
male
0.107
race
caucasian
0.689
other
0
penetrating injury
no
0
yes
-0.463
ISS
-0.031 * (ISS)
GCS motor
0.360 * (mGCS)
EMS transport
0.0001 * (minutes)
systolic blood pressure
0.007 * (SBP)
pulse
-0.004 * (pulse)
head injury
no
0
yes
0.192
ACS level
1
0
2
0.683
3
-1.372
4
0
unranked
0.265
where:
• A level 4 trauma center appears to be scored 0 although outcomes should be worse than level 3. This may be because the number of level 4 centers was small.
value of X =
= SU(points for all of the parameters) - 2.101
probability of survival =
= 1 / (1 + EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.72.
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