• In a study of hospitalized patients in Canada, the mildest forms of acute kidney injury (AKI) resulted in adjusted costs that were 1.2 to 1.3 times greater than those for patients without AKI.
• More severe AKI were associated with costs that were 1.8 to 2.5 times greater.
• The incremental cost of AKI in Canada was estimated to be more than $200 million (Canadian dollars) per year.