Fig. 2From: Fluid balance and mortality in critically ill patients with acute kidney injury: a multicenter prospective epidemiological studyDaily fluid balance in acute kidney injury (AKI) and non-AKI in the first 3 days of intensive care unit (ICU) stay (mean ± standard error of the mean). *P = 0.007; **P < 0.001. n1 represents patients with AKI; n2 represents patients without AKIBack to article page