The effect of different consensus definitions on diagnosing acute kidney injury events and their association with in-hospital mortality.

Background: Due to the existence of different AKI definitions, analyzing AKI incidence and associated outcomes is challenging. We investigated the incidence of AKI events defined by 4 different definitions (standard AKIN and KDIGO, and modified AKIN-4 and KDIGO-4) and its association with in-hospital mortality.

Methods: A total of 7242 adult Greek subjects were investigated.