Table 1

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


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


*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

Perez-Valdivieso et al. BMC Nephrology 2007 8:14   doi:10.1186/1471-2369-8-14