Table 1 Demographics and injury characteristics of the adult trauma patients with AKI

 Male

56 (71.8)

8267 (57.3)

1.9 (1.16–3.11)

0.010

 Female

22 (28.2)

6159 (42.7)

0.5 (0.32–0.86)

0.010

Age

62.9 ± 21.0

52.7 ± 19.2

—

<0.001

 DM

20 (25.6)

2087 (14.5)

2.0 (1.22–3.40)

0.005

 HTN

36 (46.2)

3928 (27.2)

2.3 (1.47–3.58)

<0.001

 CAD

9 (11.5)

494 (3.4)

3.7 (1.83–7.41)

0.001

 CVA

7 (9.0)

569 (3.9)

2.4 (1.10–5.24)

0.035

Alcohol >50, n (%)

4 (5.1)

989 (6.9)

0.7 (0.27–2.01)

0.547

GCS

11.5 ± 4.8

14.3 ± 2.3

—

<0.001

 ≤8

20 (25.6)

718 (5.0)

6.6 (3.94–11.00)

<0.001

 9–12

8 (10.3)

557 (3.9)

2.8 (1.36–5.94)

0.011

 ≥13

50 (64.1)

13151 (91.2)

0.2 (0.11–0.28)

<0.001

 Head/Neck

35 (44.9)

3766 (26.1)

2.3 (1.47–3.61)

<0.001

 Face

11 (14.1)

2158 (15.0)

0.9 (0.49–1.77)

0.832

 Thorax

17 (21.8)

1610 (11.2)

2.2 (1.29–3.81)

0.003

 Abdomen

11 (14.1)

851 (5.9)

2.6 (1.38–4.97)

0.006

 Extremity

41 (52.6)

10792 (74.8)

0.4 (0.24–0.58)

<0.001

ISS

19.8 ± 17.3

8.9 ± 7.2

—

<0.001

 <16

40 (51.3)

12119 (84.0)

0.2 (0.13–0.31)

<0.001

 16–24

15 (19.2)

1599 (11.1)

1.9 (1.09–3.36)

0.023

 ≥25

23 (29.5)

708 (4.9)

8.1 (4.95–13.26)

<0.001

Mortality, n (%)

35 (44.9)

295 (2.0)

39.0 (24.6–61.8)

<0.001

LOS (days)

18.3 ± 16.8

9.8 ± 10.4

—

<0.001

 Patients, n (%)

45 (57.7)

2744 (19.0)

5.8 (3.70–9.12)

<0.001

 LOS in ICU (days)

18.8 ± 19.7

8.6 ± 11.5

—

0.001