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Table 1 Comparison of ROC areas among individual biomarkers

From: Receiver operating characteristic analysis of prediction for gastric cancer development using serum pepsinogen and Helicobacter pylori antibody tests

Outcome (Cut-off value) ROC area (95% CI)
PG I/II PG I PG II HP
H. pylori infection 0.820 ± 0.023 0.455 ± 0.022 0.186 ± 0.016 -
(HP antibody = 10.0) (0.774–0.865) (0.411–0.499) (0.153–0.217)
H. pylori infection 0.849 ± 0.024 0.478 ± 0.025 0.181 ± 0.018 -
(HP antibody = 5.0) (0.801–0.896) (0.429–0.527) (0.146–0.216)
Gastric cancer 0.649 ± 0.017 0.561 ± 0.011 0.434 ± 0.018 0.574 ± 0.018
  (0.615–0.683) (0.526–0.597) (0.400–0.469) (0.538–0.610)
  1. HP Helicobacter pylori, PG pepsinogen, ROC receiver operating characteristic, CI confidence interval