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Table 1 Baseline characteristics of patients with and without acute kidney injury

From: Serum Interleukin-6 and interleukin-8 are early biomarkers of acute kidney injury and predict prolonged mechanical ventilation in children undergoing cardiac surgery: a case-control study

  No acute kidney injury Acute kidney injury P value
Number 21 18  
Age (years)* 2.1 ± 2 3 ± 5.2 0.46
Male (%) 62% 50% 0.46
White (%) 86% 83% 0.84
Redo surgery 24% 39% 0.31
CPB time (minutes)* 87 ± 44 136 ± 63 0.007
Baseline Cr (mg/dl)* 0.4 ± 0.08 0.4 ± 0.17 0.92
Peak Cr (mg/dl)* 0.4 ± 0.11 0.9 ± 0.58 0.0007
CVP (mm Hg)*‡ 10.6 ± 2.6 10.6 ± 3.4 0.99
Mechanical ventilation at 24 h (%) 33% 78% 0.006
Hospital length of stay (days)† 4 [3, 6] 10.5 [8, 30] <0.0001
Death (%) 0 11% 0.12
  1. *Mean ± SD
  2. † Median [25, 75% interquartile range].
  3. ‡ Measured 2 hours after CPB.