Positive Helicobacter pylori status is associated with better overall survival for gastric cancer patients: evidence from case-cohort studies.

ABSTRACT: Helicobacter pylori (H. pylori) infection increases the gastric cancer risk; however, the influences of H. pylori infection status on the outcomes for gastric cancer patients have not yet clearly defined. Herein, we systematically assessed the epidemiological studies regarding the associations between the H.pylori infection status at diagnosis and the prognosis for gastric cancer patients with the meta-analysis methods. Thirty-three eligibility studies with 8,199 participants that had determined the H.pylori infection status and the outcomes for gastric cancer patients were identified through searching the PubMed and MEDLINE databases updated to March 1^st, 2017. The random-effects model suggested that positive H. pylori infection was associated

SUBMITTER: Fang X 

PROVIDER: S-EPMC5668073 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature