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Table 5 Test of differences between the Area Under the Curve (AUC) for pre-specified hemoglobin concentration cutoffs

From: Performance of a quantitative fecal immunochemical test for detecting advanced colorectal neoplasia: a prospective cohort study

  Reference group Comparator group Z - stats p-value
Threshold (ng/ml) 50 75 2.3587 0.01834
AUC 0.58209 0.56223
Threshold (ng/ml) 50 100 2.8421 0.00448
AUC 0.58209 0.55429
Threshold (ng/ml) 50 125 2.7122 0.00668
AUC 0.58209 0.55485
Threshold (ng/ml) 50 150 2.9666 0.00301
AUC 0.58209 0.55028
  1. p-value from DeLong’s test for two correlated ROC curves