Stool antigen testing for the diagnosis and confirmation of eradication of <i>Helicobacter pylori</i> infection: a prospective blinded trial

Abstract

In this prospective study, HpSA was found to be a reasonably useful diagnostic test for H. pylori infection. Post-eradication, it was highly specific and similar to UBT in terms of PPV and NPV. The test is non-invasive and cheaper than the urease test or the UBT, making it a candidate in the investigation of dyspepsia.