Skip to main content

Table 5 New Injury Severity Score (NISS) + Polytrauma + Systolic Blood Pressure (SBP) + Glasgow Coma Scale (GCS)

From: Combining the new injury severity score with an anatomical polytrauma injury variable predicts mortality better than the new injury severity score and the injury severity score: a retrospective cohort study

Variable Category Coefficient OR (95 % CI) P-value
New Injury Severity Score (NISS)   0.08 1.08 (1.08–1.09) <0.001
Polytrauma (reference no polytrauma)   0.68 1.98 (1.54–2.54) <0.001
SBP 90 mmHg or less (reference SBP 90 mmHg and above)   −1.25 0.29 (0.19–0.43) <0.001
GCS 8 or less (reference GCS more than 8)   −2.11 0.12 (0.09–0.16) <0.001
Age 18–44   1 (reference)  
  45–54 0.19 1.21 (0.79–1.85) 0.376
  55–64 0.76 2.14 (1.50–3.05) <0.001
  65–69 1.21 3.37 (2.15–5.27) <0.001
  70–74 1.26 3.52 (2.27–5.46) <0.001
  75–84 1.95 7.05 (5.00–9.93) <0.001
  85 and above 2.44 11.48 (8.00–16.48) <0.001
Gender (reference female)   0.17 1.19 (0.95–1.47) 0.126
Charlson Comorbidity index 0   1 (reference)  
  1 0.02 1.03 (0.79–1.33) 0.852
  2 0.62 1.85 (1.32–2.60) <0.001
  3 1.23 3.42 (2.10–5.55) <0.001
  4 or more 1.29 3.64 (1.95–6.79) <0.001
Constant   −3.49 0.03 (0.02–0.05) <0.001
  1. Abbreviations: CI 95 % confidence interval, GCS Glasgow Coma Scale, OR odds ratio, SBP Systolic blood pressure