Oliguria as predictive biomarker of acute kidney injury in critically ill patients

Table 1 Patient characteristics

	No.	Male	Surgical	Sepsis	SAPS 2	AKI on admission	AKI in ICU	RRT	28-Day mortality
Australia	88	58%	57%	34%	31	11	10	6	15%
Canada	31	59%	25%	68%	45	13	0	7	22%
Japan 1	16	69%	75%	19%	31	1	2	1	0%
Japan 2	15	40%	93%	6%	25	0	0	0	6.3%
USA	34	50%	12%	32%	na	3	1	3	12%
Germany	35	66%	17%	37%	34	4	5	4	8.5%
Italy	19	74%	100%	0%	29	0	5	0	0%
All	239	59%	48%	34%	31	32	22	21	11%

Study centers: Austin Hospital, Heidelberg, Victoria, Australia (R. Bellomo), University of Alberta Hospital, Calgary, Alberta, Canada (S. Bagshaw), Charité University Medicine, Potsdam, Germany (M. Haase), Okayama University Hospital, Shikata City, Japan (M. Egi), Jikei University School of Medicine, Tokyo, Japan (S. Uchino), UPMC McKeesport, Pittsburgh, PA, USA (J. Kellum) and Ospedale San Bortolo, Vicenza, Italy (C. Ronco).
AKI, acute kidney injury; na, not available; RRT, renal replacement therapy; SAPS 2, simplified acute physiology score 2.

ISSN: 1364-8535