Table 1

Baseline characteristics

Variable
No AKI
Risk
Injury
Failure
P

n
114
11
21
36

Age (years)a
54 ± 18.2
61.9 ± 20.9
61.6 ± 13.4
61.8 ± 16.3
NS
Sex (male)
65 (57)
10 (91)
18 (85.7)
27 (75)
0.009
Race (Caucasian)
102 (89.5)
10 (91)
20 (95.2)
30 (83.3)
NS
Severe sepsisb
77 (67.5)
6 (54.5)
12 (57.1)
13 (36.1)
0.012
Septic shockb
25 (21.9)
4 (36.4)
8 (38)
23 (64)
<0.0001
CVD
37 (32.4)
3 (27.3)
10 (47.6)
14 (38.9)
NS
CKD
5 (43.9)
1 (9)
4 (19)
8 (22.2)
0.009
SAPS II > 50
22 (19.3)
6 (54.5)
7 (33.3)
9 (26.5)
0.06
Mortality
11 (9.6)
3 (27.3)
6 (28.6)
20 (55)
<0.0001

Figures in parentheses are percentages. AKI, acute kidney injury; CKD, chronic kidney disease; CVD, cardiovascular disease, diabetes mellitus and hypertension; NS, not significant; SAPS II, Simplified Acute Physiology Score, version II. The SAPS II was calculated on the basis of the worst variables recorded during the first 24 hours of ICU admission. aMeans ± SD; bsepsis was classified in accordance with American College of Chest Physicians and the Society of Critical Care Medicine consensus [2].

Lopes et al. Critical Care 2007 11:411   doi:10.1186/cc5735