Patients with acute kidney injury (AKI) are more likely to die if they are admitted to a hospital on a weekend rather than a weekday, a study found.

Matthew T. James, MD, of the University of Calgary in Alberta, Glenn Chertow, MD, of Stanford University School of Medicine in Stanford, Calif., and colleagues found that AKI patients admitted on weekends were 22% more likely than their weekday counterparts to die by day 3 of their stay and 7% more likely to die during their stay overall.

In smaller hospitals, these percentages rose to 34% and 17%, respectively, according to a report in the Journal of the American Society of Nephrology (published online ahead of print).

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