Morris et al reported 2 scores for predicting the risk of an older trauma patient. One version (qEMAT) is used at patient presentation. The authors are from the University of Minnesota, Medical College of Wisconsin, and University of Michigan.
Patient selection: age >= 65 years
Parameters:
(1) systolic blood pressure in mm Hg
(2) pulse in beats per minute
(4) penetrating injury
(5) congestive heart failure
(6) chronic renal failure
(7) cirrhosis
(8) age in years
Parameter |
Finding |
Points |
systolic blood pressure |
>= 90 mm Hg |
0 |
|
< 90 mm Hg |
17 |
pulse |
> 120 |
11.5 |
|
50 to 120 |
0 |
|
< 50 |
7 |
Glasgow coma scale |
|
5.5 * (15 - (GCS)) |
penetrating injury |
no |
0 |
|
yes |
6 |
congestive heart failure |
no |
0 |
|
yes |
11.5 |
chronic renal failure |
no |
0 |
|
yes |
15 |
cirrhosis |
no |
0 |
|
yes |
19 |
score =
= SUM(points for all of the parameters) + (age)
Interpretation:
• The minimum score for the items listed in the table is 0.
• The paper gives the minimum dEMAT as 65 and the abstract states that the score has 8 parameters, which indicates that age is added to the score.
The data in Figure 2 can be approximated by:
Score |
Mortality Rate |
< 85 |
< 3.5% |
85 to 175 |
(-0.00014538 * ((score)^3)) + (0.055794 * ((score)^2)) - (6.0191 * (score)) + 201.61 |
> 175 |
> 79% |
Performance:
• The area under the ROC curve is 0.84
Specialty: Surgery, orthopedic, Surgery, general, Emergency Medicine