Jeong et al modified the revised trauma score in order to better predict mortality in trauma patients. The authors are from Gyeongsang National University in South Korea.
Patient selection: trauma
Outcome: mortality
Parameters:
(1) Glasgow coma score (GCS) from 3 to 15
(2) systolic blood pressure in mm Hg
(3) oxygen saturation in percent (SpO2)
Parameter
Finding
Points
Glasgow coma score
systolic blood pressure
>= 150 mm Hg
3
110-149 mm Hg
4
90-109 mm Hg
2
70-89 mm Hg
1
< 70 mm Hg
0
oxygen saturation
>= 94%
4
80-93%
3
60-79%
2
40-59%
1
< 40%
0
NTS =
= (0.4006 * (GCS)) + (0.2993 * (points for systolic blood pressure)) + (0.8709 * (points for oxygen saturation))
X =
= NTS - 6.5406
probability of survival =
= 1/ (1 + EXP((-1) * X))
triage NTS = T-NTS =
= SUM(points for all 3 parameters)
Interpretation:
• minimum NTS: 1.2019
• maximum NTS: 10.6867.
• minimum T-NTS: 3
• maximum T-NTS: 23
• The higher the T-NTS the better the outcome.
T-NTS
Mortality Risk
18 to 23
low
12 to 17
intermediate
6 to 11
high
3-5
very high
Performance:
• The area under the ROC curve is 0.94.
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