Mean serum pepsinogens levels in relation to the presence of IgG H. pylori antibodies and by age group.

Data presented are mean levels and 95% CI. By ANOVA there was a significant difference between the age groups and according to serostatus (PUsing the Bonferroni test that corrects for multiple comparisons a significant difference (P = 0.001) was noted in the serum PG II levels of H. pylori-seropositive vs. seronegative children aged Using the Bonferroni test, a significant difference (PH. pylori-seropositive vs. seronegative children aged 5–9 years. Also, the mean serum PG I level among H. pylori-seropositive children aged 5–9 years was significantly higher than among H. pylori-seropositive children aged