Derived data and reproducibility materials for "Gastric mucosal recovery and residual gastric cancer risk after Helicobacter pylori eradication"

Abstract

This repository contains the author-created derived datasets and reproducibility materials supporting the systematic review “Systematic review: Gastric mucosal recovery and residual gastric cancer risk after successful Helicobacter pylori eradication”.The final review includes 205 reports representing 181 canonical study families and 916 extracted outcome rows. The repository contains study-level and outcome-level derived data, study-family mapping, design-specific JBI critical-appraisal profiles, GRADE assessments, overlap and independence adjudication, final meta-analysis input and summary data, PRISMA data and full-text exclusion-reason summaries, risk-stratification recoding, the complete search appendix, and reproducibility code.The principal targeted quantitative syntheses were: residual primary gastric-cancer risk (k=3; pooled HR 0.559, modified Hartung-Knapp 95% CI 0.163–1.922); histologic intestinal-metaplasia regression/resolution at 1–3 years (k=5; pooled proportion 44.5%, 95% CI 27.3%–63.2%); and secondary-prevention metachronous gastric cancer (k=4; pooled RR 0.462, 95% CI 0.244–0.874).PROSPERO registration: CRD420261509683.Raw PubMed, Embase, Scopus, and Web of Science database exports are not redistributed because database licence conditions may restrict redistribution. The deposited files contain author-created derived data and reproducibility materials only.