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Table 6 Comparison of all individual episodes of oliguria between those that were associated with progression to RIFLE I[Cr] and those that were not

From: Oliguria as predictive biomarker of acute kidney injury in critically ill patients

 

AKI-Cr

No AKI-Cr

P

Episodes of oliguria

30

457

 

Duration of oliguria

3 (1-4)

2 (1-3.75)

0.14

HR

90 (79-100)

82 (70-95)

0.02

MAP

75 (65-80)

78 (70-87.5)

0.01

CVP

11 (10-13)

9 (7-12)

0.02

On vasopressor or inotrope

65% (47-82)

32% (28-37)

0.0002

Action

None

17% (3-32)

52% (47-57)

0.0002

Fluid

43% (25-62)

26% (22-30)

0.05

Diuretic

47% (28-66)

26% (22-30)

0.02

Increase/start vasopressor or inotrope

17% (3-31)

24% (17-30)

0.51

  1. Continuous variables reported as medians and inter-quartile range and compared with Mann-Whitney U test. Categorical variables are reported as percentages with 95% confidence interval and compared with Fisher's exact test. AKI-Cr, acute kidney injury defined by changes in serum creatinine; CVP, central venous pressure; HR, heart rate; MAP, mean arterial pressure.