Table 1 PECOTS criteria of the study
Selection criteria | Inclusion criteria | Exclusion criteria |
|---|---|---|
Population | Patients that have gastric cancer that diagnosed using invasive or non-invasive criteria, including endoscopy, pathology, histology, fiberscopy. PET/CT imaging, immunohistochemistry staining, biopsy and other methods | - |
Exposure | Patients that have H.pylori that diagnosed using UT, PCR, ELISA, salt tolerance, Gram's stain, cagA gene pcr and other methods | - |
Comparison | ---- | --- |
Outcome | Prevalence of cancer in positive H.pylori patients | --- |
Time | Published form 2011 to 20 April 2021 | --- |
Study design | Observational studies including prospective or retrospective case series, cohort and cross sectional studies | Case control, ecological studies, in vivo studies, experimental of interventional studies, case report, lack of access to full text articles, review articles, letter to editor |