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Table 2 Basic patient characteristics

From: Bundled care in acute kidney injury in critically ill patients, a before-after educational intervention study

Characteristic Usual care group STK group P-value
Number of patients 1295 1347  
Age (years; mean ± SD) 60.2 (15.6) 59.6 (16.2) 0.35
Male sex (N (%)) 809 (63) 835 (62) 0.8
Body Mass Index (kg/m2; mean ± SD) 26.5 (5.2) 26.5 (10) 0.98
APACHE IV (mean ± SD) 51 (25) 52.3 (25) 0.18
Admission type    0.05
Medical (N (%)) 423 (33) 497 (37)
Surgical (N (%))   
   Scheduled (N (%)) 699 (54) 665 (49)
   Emergency (N (%)) 172 (13) 185 (14)
Co-morbidity
Diabetes mellitus (N (%)) 194 (15) 195 (15) 0.72
Serum creatinine at admission (μmol/l; median (IQR)) 73 (59–91) 72 (59–89) 0.16
KDIGO stage admission (N (%)) 1291 (99) 1253 (93) 0.73
No AKI (N (%)) 1147 (89) 1117 (83)
Stage 1 (N (%)) 85 (6.6) 95 (7.1)
Stage 2 (N (%)) 28 (2.2) 21 (1.6)
Stage 3 (N (%)) 31 (2.4) 20 (1.5)
Fluid balance day 1 1086 (299, 2112) 728 (61, 1795) < 0.01
Fluid balance day 2 848 (194, 2260) 726 (173, 1878) 0.023
Fluid balance day 3 708 (89, 1785) 533 (−13, 1389) 0.011
  1. STK ‘Save the Kidney’, SD Standard deviation, APACHE Acute physiology and chronic health evaluation, IQR Inter quartile range