Comparison of predialysis clinical characteristics of the nondiuretic and diuretic groups.

NOTE. Data are no. (%) of patients, unless otherwise indicated.§Data correspond to the worst value in the 24 hours preceding the time point.Abbreviations: APACHE II, acute physiology and chronic health evaluation; BUN, blood urea nitrogen; CVP, central venous pressure; CVVH, continuous venovenous hemofiltration; ICU, intensive care unit; IHD, intermittent hemodialysis; MAP, mean arterial pressure; NPO, nil per os; RIFLE, risk of renal failure, injury to kidney, failure of kidney function, loss of kidney function and end-stage renal failure; SAPS, simplified acute physiological score; SD, standard deviation; SOFA, Sequential Organ Failure Assessment; sCr, serum creatinine; SLED, sustained low-efficiency dialysis.∥Defined as 3-day predialysis diuretic use.