The Association Between Urine Output, Creatinine Elevation, and Death

We found that there is similar accuracy in using urine output corrected for actual, ideal, or adjusted weight to discriminate future acute kidney injury by creatinine elevation and recommend using actual weight for its simplicity. We also found that low urine output is associated with subsequent acute kidney injury and that the association is greater for lower urine output and for low urine output of longer durations. Low urine output (<0.2 mL · kg-1 · h-1), even in the absence of acute kidney injury by creatinine elevation, is independently associated with mortality.