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Table 1 Demographics and injury characteristics of the hospitalized trauma patients

From: Use of the reverse shock index for identifying high-risk patients in a five-level triage system

Variables RSI < 1 RSI  1 Odds ratio p
N = 348 N = 10466 (95 % CI)
SBP Mean (mmHg) 90.9±29.0 146.0±29.7 - -
HR Mean (beats/min) 123.4±61.3 86.4±16.0 - -
RSI Mean 0.8±0.2 1.7±0.5 - -
 Range 0.0−0.9 1.0−8.1 - -
Gender     
 Male 255 (73.3) 6631 (63.4) 1.6 (1.25–2.02) <0.001
 Female 93 (26.7) 3835 (36.6) 0.6 (0.50–0.80) <0.001
GCS 12.1±4.0 14.4±2.0 <0.001
 ≤8 69 (19.8) 411 (3.9) 6.1 (4.57–8.02) <0.001
 9–12 36 (10.3) 338 (3.2) 3.5 (2.41–4.96) <0.001
 ≥13 243 (69.8) 9717 (92.8) 0.2 (0.14–0.23) <0.001
AIS, n (%)     
 Head/Neck 139 (39.9) 2513 (24.0) 2.1 (1.69–2.62) <0.001
 Face 83 (23.9) 1946 (18.6) 1.4 (1.07–1.76) 0.013
 Thorax 114 (32.8) 1197 (11.4) 3.8 (3.00–4.76) <0.001
 Abdomen 100 (28.7) 652 (6.2) 6.1 (4.75–7.76) <0.001
 Extremity 226 (64.9) 7590 (72.5) 0.7 (0.56–0.88) 0.002
ISS, median (IQR) 13 (5–22) 5 (4–9) - <0.001
 <16 192 (55.2) 9152 (87.4) 0.2 (0.14–0.22) <0.001
 16–24 81 (23.3) 947 (9.0) 3.0 (2.36–3.95) <0.001
 ≥25 75 (21.6) 367 (3.5) 7.6 (5.74–9.96) <0.001
Mortality 34 (9.8) 103 (1.0) 10.9 (7.28–16.31) <0.001
Ward LOS (days) 17.0±17.8 8.9±9.7 - <0.001
ICU     
n (%) 168 (48.3) 1606 (15.3) 5.1 (4.15–6.40) <0.001
 LOS (days) 12.3±19.5 8.6±10.2 - <0.001