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Table 2 Patient characteristics and clinical parameters

From: Renal replacement therapy is an independent risk factor for mortality in critically ill patients with acute kidney injury

  Total group Conservative RRT P-value of difference
Number n = 1,303 n = 653 n = 650  
Age: mean (range) 66 (15 to 96) 67 (16 to 93) 64 (15 to 96) <.001
Male 63.1% 62.8% 63.5%  
Female 36.9% 37.2% 36.5% 0.754
Type of AKI     
Pre-renal 45.5% 58.4% 32.6%  
Renal 54.5% 41.6% 67.4% <.001
Specified cause of AKI     
Acute tubular necrosis 89.6% 89.6% 89.6%  
Other 10.4% 10.4% 10.4% 0.997
Setting of AKI     
Medical 72.8% 72.2% 73.4%  
Surgical 27.2% 27.8% 26.6% 0.634
Severity scores (mean (SD))     
SHARF (baseline) 62.3 (28.9) 58.4 (28.4) 66.0 (29.0) <.001
APACHE II (baseline) 23.9 (10.4) 22.5 (10.2) 25.2 (10.4) <.001
SOFA (baseline) 9.2 (3.9) 8.5 (3.8) 9.9 (3.9) <.001
  1. AKI: acute kidney injury RRT: Renal Replacement Therapy SHARF score: Stuivenberg Hospital Acute Renal Failure score [19]