Table 2 Diagnostic performance of and changes in urinary indices at ICU admission andafter 24 hours

Urinary indices at ICU admission

   FeNa

0.59 (0.49 to 0.69)

0.54 (0.41 to 0.66)

0.59 (0.42 to 0.75)

   FeUrea

0.50 (0.41 to 0.60)

0.53 (0.41 to 0.65)

0.64 (0.49 to 0.79)

   U/P urea

0.57 (0.48 to 0.67)

0.56 (0.45 to 0.68)

0.59 (0.45 to 0.74)

   U/P creatinine

0.55 (0.45 to 0.65)

0.53 (0.41 to 0.65)

0.61 (0.46 to 0.77)

Urinary indices at H24

   FeNa

0.61 (0.51 to 0.71)

0.64 (0,52 to 0,76)*

0,56 (0,40 to 0.72)

   FeUrea

0.51 (0.40 to 0.62)

0.57 (0.43 to 0.70)

0.56 (0.39 to 0.72)

   U/P urea

0.65 (0.55 to 0.75)*

0.65 (0.53 to 0.76)*

0.67 (0.51 to 0.83)*

   U/P creatinine

0.58 (0.48 to 0.69)

0.56 (0.43 to 0.69)

0.58 (0.41 to 0.76)

Changes in urinary indices between H0 and H24

   FeNa

0.59 (0.49 to 0.70)

0.58 (0.45 to 0.71)

0,59 (0,40 to 0.78)

   FeUrea

0.57 (0.47 to 0.68)*

0.58 (0.44 to 0.72)

0.61 (0.43 to 0.78)

   U/P urea

0.61 (0.51 to 0.71)*

0.60 (0.47 to 0.73)

0.65 (0.48 to 0.81)

   U/P creatinine

0.51 (0.49 to 0.62)

0.52 (0.40 to 0.65)

0.53 (0.33 to 0.70)