Fig. 1

Daily median fluid balance and I-FABP levels during the first 7 days in ICU. Daily median fluid balance, intake, output, and intestinal fatty acid-binding protein (I-FABP) levels over the first 7 days of intensive care unit (ICU) admission. A positive fluid balance was observed during the early post-ICU admission period, especially on ICU Day 1; however, an almost even balance was observed after ICU Day 3. I-FABP levels rapidly decreased after ICU admission. Data are reported as median or median (interquartile range)