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Table 1 Characteristics of patients, according to percentage of difference of creatinine* at nephrology consultation with respect to basal creatinine

From: Prognosis and serum creatinine levels in acute renal failure at the time of nephrology consultation: an observational cohort study

  GROUPS OF % CREATININE INCREASE
  < 101% increment ≥ 101% increment p value
N of patients 323 323  
Increase of Creatinine, median % (IQR). 34.07 (66.67) 201.52 (149.22)  
Age, median years (IQR). 63 (20) 62 (17) 0.36
Male gender (%) 74.3 65.0 0.01
Surgical (%) 24.9 24.2 0.849
Oncology patients (%) 36.5 34.4 0.565
Patients with no previous history of CRF (%) 61.30 91.64 < 0.001
Basal Serum Creatinine according to the MDRD 1.04 (0.19) 1.04 (0.22) 0.25
equation, median (mg/dL) (IQR).    
Patients with history of CRF (%) 38.70 8.36 < 0.001
Basal Serum Creatinine for CRF patients, median 2.3 (2.2) 1.5 (0.6) < 0.001
mg/dL (IQR),    
RIFLE criteria (%)    < 0.001
   Risk 35.9 0.0  
   Injury 26.6 29.1  
   Failure 37.5 70.9  
Basal Serum Albumin, median g/dL (IQR), 2.62 (1.07) 2.42 (0.86) 0.072
Basal Hemoglobin, median g/dL (IQR) 10.70 (3.10) 10.50 (3.20) 0.088
Community-acquired Acute Renal Failure (%) 36.0 46.6 0.020
Liano scoring, median (IQR) 0.23 (0.27) 0.30 (0.44) < 0.001
Karnofsky scoring, median (IQR) 70 (20) 60 (10) 0.015
Hypotension (%) 30.3 45.5 < 0.001
Oliguria (%) 31.3 50.8 < 0.001
Jaundice (%) 22.0 31.3 0.008
Coma (%) 11.8 18.0 0.027
Conciousness (%) 80.8 76.8 0.211
Mechanical ventilation (%) 18.3 28.5 0.002
Aminoglycoside use (%) 12.7 17 0.121
Radiocontrast procedures (%) 19.5 20.7 0.695
Diabetic (%) 11.1 6.5 0.037
Nephrotoxicity (%) 43.0 43.7 0.874
Causes of Acute Renal Failure    0.079
   Pre-renal (%) 77.1 72.1  
   Intrinsic renal (%) 18.9 19.2  
   Post-renal (%) 2.2 3.4  
   Other causes (%) 1.9 5.3  
Subsecuent Treatment of Acute Renal Failure    < 0.001
   Non-Dialytic (%) 75.5 61.0  
   Intermittent Hemodialysis (%) 7.1 7.7  
   Continuous Replacement Therapy (%) 11.1 22.6  
   Both (Intermittent+Continuous) (%) 6.2 8.7  
Prior food intake    0.024
   Optimal nutrition (%) 37 24  
   Light malnutrition (%) 18.1 20.7  
   Moderate malnutrition (%) 23.9 30.9  
   Severe malnutrition (%) 21 24.4  
  1. *Creatinine change (%) = [(creatinine at nephrology consultation - Basal creatinine)/Basal creatinine] × 100 IQR: Interquartile range. CRF: Chronic Renal Failure. MDRD: Modification of Diet in Renal Disease