Comparison of Stool Antigen Test with Histopathology of Endoscopic Gastric Biopsies for Detection for Helicobacter Pylori; A Hospital-Based Study

Objective: The objective of this study is to evaluate the diagnostic accuracy H. pylori Stool Antigen (HpSA) test keeping histopathology as gold standard.
 Study Design: This a cross sectional observational study.
 Place and Duration: was performed from Jan 2015 Mar 2020 at Najran Armed Forces Hospital, kingdom Saudi Arabia.
 Methodology: Total 151 patients in whom HpSA done were included study. They followed for their results on gastric biopsies.
 Results: Among 85(56.3%) females 66 (43.7%) males. Mean age 40 years. Forty three (28.5%) positive both histology, Fifteen (9.9%) but negative histology. Twenty two (14.6%) they Seventy one (47%) sensitivity specificity 66.1% 82.5% respectively. Positive predictive value (PPV) 74.1% (NPV) 76.3% HpSA. Diagnostic 75.5%.
 Conclusion: Keeping view low cannot be used screening tool all patients, however it can clinical correlation setups where other tests are not available due simplicity its use, cost easy repeatability