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Table 1 Patient characteristics, severity scores and resuscitation strategies

From: Acute kidney injury in severely injured patients admitted to the intensive care unit

Variable Non-AKI group (n = 240) AKI group (n = 75) Total (n = 315) P
Male [n(%)] 206 (85.8) 69 (92.0) 275 (87.3) 0.17
Age [years, M (IQR)] 27.0 (22.0–38.5) 33.0 (22.0–45.0) 28.0 (22.0–41.0) 0.15
Trauma mechanism [n(%)]     0.01
 Penetrating 66 (27.5) 29 (38.7) 95 (30.2)  
 Blunt 130 (54.2) 42 (56.0) 172 (54.6)  
 Explosion 44 (18.3) 4 (5.3) 48 (15.2)  
SBP [mmHg, M (IQR)] 119 (98–132) 116 (95–138) 117 (98–133) 0.97
BR [breathings/min, M (IQR)] 21 (18–24) 20 (18–26) 21 (18–24) 0.62
Glasgow coma score [M (IQR)] 15 (7–15) 14 (6–15) 15 (7–15) 0.11
AIS head [M (IQR)] 1 (0–4) 0 (0–3) 1 (0–4) 0.18
AIS face [M (IQR)] 0 (0–1) 0 (0–0) 0 (0–1) 0.04
AIS thorax [M (IQR)] 0 (0–3) 3 (0–4) 0 (0–3) < 0.01
AIS abdomen/pelvis [M (IQR)] 0 (0–2) 0 (0–3) 0 (0–2) 0.01
AIS extremity [M (IQR)] 2 (0–3) 2 (0–3) 2 (0–3) 0.37
AIS external [M (IQR)] 1 (0–1) 1 (0–1) 0 (0–1) 0.05
ISS [M (IQR)] 20 (14–27) 26 (19–34) 21 (16–29) < 0.01
RTS [M (IQR)] 7.55 (5.97–7.84) 7.55 (5.03–7.84) 7.55 (5.97–7.84) 0.23
APACHE II [M (IQR)] 13 (8.5–18.5) 18 (10–27) 14 (9–21) < 0.01
CK maximun [M (IQR)] 1924 (726–4940) 2508 (999–10,418) 2081 (794–5785) 0.02
CK > 5000 [n(%)] 37 (15.4) 23 (30.7) 60 (19.0) < 0.01
Initial acid lactic [M (IQR)] 2.98 (1.76–4.56) 4.33 (2.13–6.09) 3.09 (1.77–4.99) < 0.01
Initial base deficit [M (IQR)] 7.05 (4.5–9.7) 8.7 (5.8–12.4) 7.4 (4.9–10.2) < 0.01
Fluid balance, first 24 h [Lt., M (IQR)] 1.96 (0.64–3.42) 3.37 (1.57–5.49) 2.19 (0.83–3.81) < 0.01
Fluid balance 72 h [Lt., M (IQR)] 2.83 (0.27–5.18) 6.28 (3.05–9.48) 3.33 (0.89–6.42) < 0.01
Packed red blood cells, first 24 h [U, M (IQR)] 0 (0–3) 2 (0–4) 0 (0–4) < 0.01
Number of patients requiring FFP transfusion [n(%)] 52 (21.7) 29 (38.7) 23 (7.3%) < 0.01
Administration of NaH2CO3 [n(%)] 16 (6.7) 11 (14.7) 27 (8.6) 0.03
Contrast administration [n(%)] 149 (62.1) 52 (69.3) 201 (63.8) 0.25
Contrast dose ×100 mg [M (IQR)] 1.0 (0–1.5) 1.0 (0–2.0) 1 (0–2) 0.15
Norephinephrine administration [n(%)] 92 (38.3) 45 (60.0) 173 (54.9) < 0.01
Vasopresina administration [n(%)] 30 (12.5) 14 (18.7) 44 (14.0) 0.18
Dobutamine administration [n(%)] 9 (3.7) 11 (14.7) 20 (6.3) < 0.01
  1. SBP Systolic blood pressure, BR Breathing rate, AIS Abbreviate injury score, ISS Injury severity score, RTS Revised trauma score, CK Creatine kinase, NaH2CO3 Sodium bicarbonate