Creatinine levels from day 1 to 3 ( HES : +0.4 mol/L ; 95 % confidence interval ( CI ) -18.7 to 19.5 ; P = 0.97 ) and urinary outputs from day 1 to 3 ( HES : -58 mL ; 95 % CI -400 to 283 ; P = 0.90 ) were not different .