Description

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

(3) Glasgow coma scale

(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


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