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Table 4 Cross-tabulation of FENa <0.36%/FEurea <31.5% versus FENa >0.36%/FEurea <31.5% versus FENa <0 36%/FEurea >31.5% versus FENa >0.36%/FEurea >31.5% in AKIuo (A), AKIc (B), and AKIboth (C)

From: Urinary output and fractional excretion of sodium and urea as indicators of transient versus intrinsic acute kidney injury during early sepsis

A. AKIuo (% within FENa/FEUrea category)

 

FENa < 0.36%

FENa > 0.36%

FENa < 0.36%

FENa > 0.36%

Total

FEUrea < 31.5%

FEUrea < 31.5%

FEUrea > 31.5%

FEUrea > 31.5%

No AKI

18.8

7.7

43.5

71.8

42.1

Transient AKI

62.5

38.5

52.2

23.1

43.0

Intrinsic AKI

18.8

53.8

4.3

5.1

15.0

B. AKIc (% within FENa/FEUrea category)

No AKI

46.9

30.8

65.2

56.4

52.3

Transient AKI

34.4

15.4

21.7

35.9

29.9

Intrinsic AKI

18.8

53.8

13.0

7.7

17.8

C. AKIboth (% within FENa/FEUrea category)

No AKI

9.4

0.0

30.4

46.2

26.2

Transient AKI

68.8

38.5

52.2

46.2

53.3

Intrinsic AKI

21.9

61.5

17.4

7.7

20.6

  1. AKIuo, AKIc, AKIboth: Acute kidney injury based on urinary output (uo), serum creatinine (c), or both criteria (both).
  2. A: P < 0.001, B: P = 0.01 and C: P < 0.001.