1Division of Trauma Surgery, Department of Surgery, Ajou University School of Medicine, Suwon, Korea
2Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
Copyright © 2016 The Korean Society of Critical Care Medicine
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Variable | Total study cohort |
---|---|
N | 7,120 |
Age (years) | 48.9 ± 19.3 |
Sex | |
Male | 4,826 (67.8) |
Female | 2,294 (32.2) |
Transfer route | |
Direct | 3,718 (52.2) |
From another hospital | 3,402 (47.8) |
Mechanism | |
Blunt | 6668 (93.7) |
Traffic accident | 2679 (40.2) |
Fall | 1395 (20.9) |
Ground fall* | 1312 (19.7) |
Violence | 856 (12.8) |
Unspecified/not elsewhere classifiable | 426 (6.4) |
Penetrating | 452 (6.3) |
Respiratory rate (beats per min) | 16.2 ± 5.0 |
Respiratory rate | |
0-5 breaths per min | 192 (2.7) |
> 29 breaths per min | 150 (2.1) |
10-29 breaths per min | 6,778 (95.2) |
Systolic blood pressure (mmHg) | 126.9 ± 32.4 |
Systolic blood pressure | |
< 90 mmHg | 485 (6.8) |
≥90 mmHg | 6,635 (93.2) |
Glasgow Coma Scale score | 13.7 ± 3.2 |
Glasgow Coma Scale | |
3 | 346 (4.9) |
4-5 | 129 (1.8) |
6-8 | 246 (3.5) |
9-12 | 310 (4.4) |
13-15 | 6,089 (85.5) |
Injury Severity Score | 11.6 ± 10.4 |
Revised Trauma Score | 7.3376 ± 1.4959 |
Trauma and Injury Severity Score | 0.9209 ± 0.1944 |
Scoring system | AUC | 95% CI |
---|---|---|
ISS | 0.866 | 0.851-0.881 |
RTS | 0.894 | 0.877-0.910 |
TRISS | 0.942 | 0.932-0.953 |
AUC | p-value | |
---|---|---|
ISS vs. RTS | 0.866 vs. 0.894 | 0.002 |
ISS vs. TRISS | 0.866 vs. 0.942 | <0.001 |
RTS vs. TRISS | 0.866 vs. 0.942 | <0.001 |
Scoring system | Cut-off value | Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV (%) | NPV (%) |
---|---|---|---|---|---|---|
ISS | 15 | 86.7 | 74.6 | 75.5 | 22.6 | 98.5 |
RTS | 7.6954 | 83.4 | 88.6 | 88.2 | 38.5 | 98.4 |
TRISS | 0.9082 | 81.9 | 92.1 | 91.2 | 46.8 | 98.3 |
Variable | Total study cohort |
---|---|
N | 7,120 |
Age (years) | 48.9 ± 19.3 |
Sex | |
Male | 4,826 (67.8) |
Female | 2,294 (32.2) |
Transfer route | |
Direct | 3,718 (52.2) |
From another hospital | 3,402 (47.8) |
Mechanism | |
Blunt | 6668 (93.7) |
Traffic accident | 2679 (40.2) |
Fall | 1395 (20.9) |
Ground fall |
1312 (19.7) |
Violence | 856 (12.8) |
Unspecified/not elsewhere classifiable | 426 (6.4) |
Penetrating | 452 (6.3) |
Respiratory rate (beats per min) | 16.2 ± 5.0 |
Respiratory rate | |
0-5 breaths per min | 192 (2.7) |
> 29 breaths per min | 150 (2.1) |
10-29 breaths per min | 6,778 (95.2) |
Systolic blood pressure (mmHg) | 126.9 ± 32.4 |
Systolic blood pressure | |
< 90 mmHg | 485 (6.8) |
≥90 mmHg | 6,635 (93.2) |
Glasgow Coma Scale score | 13.7 ± 3.2 |
Glasgow Coma Scale | |
3 | 346 (4.9) |
4-5 | 129 (1.8) |
6-8 | 246 (3.5) |
9-12 | 310 (4.4) |
13-15 | 6,089 (85.5) |
Injury Severity Score | 11.6 ± 10.4 |
Revised Trauma Score | 7.3376 ± 1.4959 |
Trauma and Injury Severity Score | 0.9209 ± 0.1944 |
Scoring system | AUC | 95% CI |
---|---|---|
ISS | 0.866 | 0.851-0.881 |
RTS | 0.894 | 0.877-0.910 |
TRISS | 0.942 | 0.932-0.953 |
AUC | p-value | |
---|---|---|
ISS vs. RTS | 0.866 vs. 0.894 | 0.002 |
ISS vs. TRISS | 0.866 vs. 0.942 | <0.001 |
RTS vs. TRISS | 0.866 vs. 0.942 | <0.001 |
Scoring system | Cut-off value | Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV (%) | NPV (%) |
---|---|---|---|---|---|---|
ISS | 15 | 86.7 | 74.6 | 75.5 | 22.6 | 98.5 |
RTS | 7.6954 | 83.4 | 88.6 | 88.2 | 38.5 | 98.4 |
TRISS | 0.9082 | 81.9 | 92.1 | 91.2 | 46.8 | 98.3 |
Values are presented as mean ± SD or n (%). Fall from standing height.
ROC: receiver operating characteristic; AUC: area under the receiver operating characteristic curve; CI: confidence interval; ISS: Injury Severity Score; RTS: Revised Trauma Score; TRISS: Trauma and Injury Severity Score.
ISS: Injury Severity Score; RTS: Revised Trauma Score; TRISS: Trauma and Injury Severity Score; AUC: area under the receiver operating characteristic curve.
PPV: positive predictive value; NPV: negative predictive value; ISS: Injury Severity Score; RTS: Revised Trauma Score; TRISS: Trauma and Injury Severity Score.