Table 3 Characteristics and outcomes of patients with proteinuria according to AKI (n = 271)

Age (years)

41 (17.75)

41 (16.00)

0.685

Gender (% of male)

72.80

79.17

0.200

TBSA (%)

47.5 (34.75)

70 (35.00)

< 0.001

dTBSA (%)

42 (25.75)

58 (37.00)

< 0.001

Escharotomy (%)

7 (28.50)

18 (38.00)

< 0.001

Electrical injury (%)

8.33

8.61

0.936

Chemical injury (%)

19.17

12.58

0.138

Inhalation injury (%)

43.33

50.33

0.226

Comorbidities (%)

10.00

8.95

0.630

ACS (%)

14.17

25.17

0.033

Vasopressor in first 48 h (%)

5.00

8.61

0.249

Artificial colloid (%)

56.14

52.82

0.672

Albumin (%)

42.11

30.28

0.111

Proteinuria at heavy stage (%)

22.71

42.14

0.001

Urine output in shock stage (%, ≥ 0.5 ml/Kg·h^-1)

77.19

54.93

< 0.001

Nephrotoxic drugs (%)

45.61

55.63

0.202

Length of mechanical ventilation (days)

0 (3.00)

1 (6.00)

< 0.001

Sepsis during ICU stay (%)

41.67

62.25

0.001

Positive blood culture (%)

71.28

74.35

0.102

Maximum SOFA

0 (5.00)

7 (9.00)

< 0.001

CRRT during ICU stay (%)

8.30

9.93

0.002

Length of CRRT treatment (days)

0 (0.00)

0 (2.00)

0.002

ICU length of stay (days)

0 (24.75)

11 (45.00)

< 0.001

ICU mortality (%)

12.50

28.48

0.001