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Table 6 Areas the receiver operating characteristics (ROC) curves, 95 % Confidence Intervals (95 % CI) and cutoff points of optimum performance for differentiating upper from lower urinary tract

From: Utility of copeptin and standard inflammatory markers in the diagnostics of upper and lower urinary tract infections

  Area under the ROC curve 95 % Cl Cutoff point Area under the ROC curve 95 % Cl Cutoff point
  Upper urinary tract infection Lower urinary tract infection
hsCRP [mg/dl] 1 1.0 – 1.0 9.45 0.571 0.37 – 0.771 8.37
PCT [ng/ml] 0.94 0.845 – 0.993 0.07 0.505 0.185 – 0.575 0.15
IL-6 [pg/ml] 0.7 0.737 – 0.95 8.3 0.73 0.535 – 0.924 10.4
CPP [pg/ml] 1.0 1.0 – 1.0 1140 1.0 1.0 – 1.0 828