Development and Standardization of a Furosemide Stress Test to Predict the Severity of Acute Kidney Injury

Table 4 Sensitivity and specificity of two hour urine thresholds for progression to AKIN stage III

A
	Combined cohort
Total urine output over 2 hours	Sensitivity	Specificity
≤100 ml	90.2%	60.0%
<200 ml	87.1%	84.1%
<300 ml	85.3%	88.0%
<400 ml	66.7%	88.0%
<500 ml	50.5%	88.0%
B Sensitivity and specificity of two hour urine thresholds for progression to AKIN III or death
	Combined cohort
Total urine output over two hours	Sensitivity	Specificity
<100 ml	93.3%	53.2%
<200 ml	90%	74.2%
<300 ml	87.8%	77.4%
<400 ml	66.7%	77.4%
<500 ml	53.3%	77.4%

The primary outcome was Acute Kidney Injury Network (AKIN) stage III within 14 days of the furosemide stress test.
The primary outcome was Acute Kidney Injury Network (AKIN) stage III or death within 14 days of the furosemide stress test.