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Table 4 Mean daily fluid balances and outcome among patients with acute renal failure, stratified by urine output and treatment

From: A positive fluid balance is associated with a worse outcome in patients with acute renal failure

Characteristic Non-oliguric n = 572 Oliguric n = 548 P value No RRT n = 842 RRT n = 278 P value
Mean fluid balance, L/24 hours 0.27 ± 1.23 0.62 ± 1.33 <0.01 0.39 ± 1.21 0.60 ± 1.50 <0.01
ICU mortality 157 (27.4) 181 (33.0) 0.04 214 (25.4) 124 (44.6) <0.01
60-day mortality 181 (32.1) 214 (39.6) 0.01 259 (31.2) 136 (49.5) <0.01
ICU stay 4.5 (2.0–11.1) 3 (1.4–8.6) <0.01 2.9 (1.6–6.9) 8.4 (3.0–19.4) <0.01
Hospital stay 12.7 (5.5–21.0) 10.3 (2.3–22.2) <0.01 10.8 (3.8–24.1) 16 (6.8–34.9) <0.01
  1. Data are expressed as mean ± standard deviation, median (interquartile range), or number (percentage). ICU, intensive care unit; RRT, renal replacement therapy.