Table 1

Clinical features and laboratory test results of 189 consecutive critically ill patients with acute kidney injury (AKI)

CharacteristicsAll patients with AKI (n=189)Survived group (n=119)Non-survived group (n=70)P value
Mean ages (year)
(means±SD)
63.33±18.29461.73±18.99766.06±16.813<0.001
Gender (male), n (%)139 (73.5)88 (73.9)51 (72.9)0.937
Gender (female), n (%)50 (26.5)31 (26.1)19 (27.1)
SCr (μmol/L) (medians)165.0 (133.0, 238.0)166.0 (122.2, 359.2)165.0 (138.0, 215.5)0.716
BUN (mmol/L) (medians)15.3 (9.8, 22.3)13.9 (9.2, 21.5)15.9 (10.8, 23.1)0.307
Ua (medians)0.4 (0.3, 0.6)0.4 (0.3, 0.6)0.4 (0.3, 0.5)0.680
ALT (IU/L) (medians)33.0 (20.0, 65.5)41.0 (25.0, 85.0)26.5 (17.0, 52.8)0.004
TB (medians)12.1 (8.3, 20.9)12.3 (8.2, 18.7)12.0 (9.2, 20.9)0.870
Prealbumin (mg/L) (medians)135.0 (95.0, 196.0)134.5 (98.5, 176.2)135.0 (94.0, 206.0)0.699
Blood glucose (mmol/L) (medians)6.9 (5.4, 9.5)7.3 (5.5, 10.1)6.5 (5.4, 8.5)0.283
C reactive protein (μg/L) (medians)69.1 (18.6, 122.0)69.1 (20.0, 132.5)69.7 (15.7, 119.0)0.363
TG (medians)1.6 (1.0, 2.8)1.9 (1.2, 3.2)1.4 (0.9, 1.9)0.072
CHO (medians)3.5 (2.7, 4.4)3.6 (2.8, 4.3)3.4 (2.6, 4.4)0.512
LDL (medians)2.4 (1.7, 3.0)2.4 (1.8, 2.9)2.4 (1.6, 3.0)0.802
Albumin (g/L)
(means±SD)
32.3±6.931.6±7.232.9±6.60.215
HDL (means±SD)0.8±0.40.7±0.40.9±0.40.091
Na (mmol/L) (medians)140.0 (136.0, 148.8)140.0 (135.0, 149.0)140.0 (137.0, 147.0)0.791
Cl (mmol/L) (medians)103.0 (98.0, 111.0)103.0 (98.0, 113.0)102.0 (97.0, 111.0)0.582
K (mmol/L) (means±SD)4.2±0.94.2±0.94.2±0.90.555
Ca (mmol/L) (means±SD)2.1±0.32.0±0.32.1±0.20.505
P (mmol/L) (medians)1.2 (0.9, 1.6)1.4 (1.0, 1.7)1.2 (0.8, 1.4)0.042
WCC (×103/μL) (medians)11.5 (7.7, 16.7)11.7 (9.1, 16.4)11.0 (7.0, 16.9)0.490
RBC (×1012/L) (means±SD)3.7±0.93.8±0.93.7±0.80.227
HCT (means±SD)33.6±7.234.0±8.333.2±6.10.495
Platelets(×109/L) (means±SD)155.5±95.0167.0±109.0144.9±79.20.112
Hemoglobin (×g/dL) (means±SD)111.0±24.5112.5±28.0109.6±20.80.420
MO (means±SD)7.0±3.16.9±3.17.1±3.10.577
Stay in hospital (days) (medians)20.0 (12.0, 36.5)18.0 (13.0, 29.0)22.5 (12.0, 51.0)0.038
APACHE II scores
(medians)
16.00 (12.0, 26.0)16.0 (10.0, 23.5)17.0 (13.0, 26.0)0.099
ATN-ISI scores (medians)0.335 (0.21, 0.58)0.28 (0.15, 0.59)0.34 (0.24, 0.58)0.032
SAPS II scores (medians)43.0 (31.0, 60.5)42.5 (24.0, 57.25)44.0 (35.0, 62.0)0.048
SOFA scores (medians)6.0 (3.0, 11.0)6.0 (4.0, 12.0)6.0 (3.0, 11.0)0.703
RIFLE0.272
Fc, n (%)55 (30.4)34 (29.1)21 (32.8)
Ic, n (%)47 (26.0)27 (49.0)20 (31.2)
Rc, n (%)79 (43.6)56 (47.9)23 (35.9)
  • The various parameters were obtained within the first 24 hours following admission.

  • ALT, alanine amino transaminase; APACHE II, Acute Physiology and Chronic Health Evaluation version II; ATN-ISI, Acute Tubular Necrosis Individual Severity Index; BUN, serum urea nitrogen; Ca, serum calcium; Cho, serum total cholesterol Cl, serum chlorine;  Fc, F stage of the Risk, Injury, Failure, Loss, or End-stage kidney disease criteria; HDL, High density lipoprotein; Ic, I stage of the Risk, Injury, Failure, Loss, or End-stage kidney disease criteria; K, serum potassium; LDL, low density lipoprotein; MO, monocyte; Na, serum sodium; P, serum phosphorus; RBC, total blood count of red blood cell; RIFLE, Risk, Injury, Failure, Loss, or End-stage kidney disease; Rc, R stage of the Risk, Injury, Failure, Loss, or End-stage kidney disease criteria; SAPS II, Simplified Acute Physiology Score version II ; SCr, serum creatinine; SOFA, Sepsis-related Organ Failure Assessment; WBC, total blood count of white cell count; TB, total protein; TG, triglyceride; Ua, uric acid;