Urine neutrophil gelatinase-associated lipocalin and urine output as predictors of the successful discontinuation of continuous renal replacement therapy in critically ill patients with acute kidney injury

Table 4 Test parameters and results of diagnostics tests combining the two variables, urine neutrophil gelatinase-associated lipocalin at 6 h (uNGAL 6 h) and urine output 24 h before CRRT discontinuation (OUC24pre)

Each of the 2 tests are to be seen as a complete diagnostic test with 2 variables. E.g., for “uNGAL > 1650 um/L or urine output < 210 ml” the test is positive, if either or both “uNGAL > 1650” or “urine output < 210 ml” are true. The test is negative if neither of “uNGAL > 1650” or “urine output < 210 ml” are true. PPV = positive predictive value; NPV = negative predictive value

ISSN: 1471-2369