Evaluation of Pepsinogen I, II, Gastrin 17 and Helicobacter pylori IgG in Atrophic Gastritis: A Head-To-Head Comparison of Lateral Flow and Enzyme-Linked Immunosorbent Assays.

Similarly, ELISA showed improved discrimination for corpus‐restricted AG (AUC = 0.785, 95% CI [0.671–0.785]) relative to antrum‐restricted AG (AUC = 0.703, 95% CI [0.629–0.703], p = 0.24) and AG in the antrum and corpus (AUC = 0.671, 95% CI [0.595–0.671], p = 0.10), although these differences did not reach statistical significance. 3.3 Etiological Factors in Atrophic Gastritis May Be Determined Using LFA and ELISA To explore the etiological applications of LFA and ELISA in atrophic gastritis, we compared their diagnostic performance of H. pylori IgG, using histological H. pylori positivity as the gold standard.

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