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

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