Evidencio validations - Evidencio
External validation of EMTRAS in rural academic level 1 trauma center
The EMTRAS was externally validated in a cohort of trauma patients who were admitted during the period from 2006 to 2011. Patients were treated at the trauma resuscitation room in an rural level 1 trauma center in the Netherlands. Data were derived from the prospectively collected trauma registry.
Research authors: Joosse P, de Jong WJ, Reitsma JB, Wendt KW, Schep NW, Goslings JC.
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Discrimination

Rows included 0
C-index 0.92 ROC
Brier score Not specified
Scaled Brier score Not specified

Classification plot

Not specified

Calibration

Regression coefficient 0
Intercept 0
Hosmer-Lemeshow GOF Not specified
 

Calibration plot

Histogram

Not specified

Decision curve

Not specified
Comparison
Original study population: 11533
Validation study population: 1417

Categorical characteristics

Name Subset / Group Nr. of patients Validation P-Value
Gender Female 3068 547 < 0.0001
Male 8465 1066
Mortality Alive 9007 1214 < 0.0001
Death 2526 203

Continuous characteristics

Name Mean SD Unit Plot
Original Validation Age 42.3
43.9
19.2
19.5
years
Original Validation Injury severity score 30.1
19.4
12.5
15.2
ISS
Original Validation Glasgow Coma Scale 10
12
4.9
4
GCS
Original Validation Base excess -3.3
-3.5
5.4
4.6
mmol/l
Original Validation Prothrombin time 73.9
86
23.6
15
%
Original Validation Systolic blood pressure 119
32
mmHg
Original Validation Heart rate 91
24
bpm
Original Validation Hemoglobin saturation 97
6
%
Original Validation Respiratory rate 14.9
5.4
bpm
Original Validation Hemoglobin 11.0
7.8
3.2
1.5
g/dL
Original Validation Platelet count 190
212
82
66
x10^9/l
Original Validation APTT 38.8
28.2
24.1
14.4
sec
Original Validation Lactate 5.3
2.3
8.6
2.3
mmol/l
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