Data Extraction
Two authors (xing cao and yafei wang) collected data separately from
eligible studies. The information relevant to this analysis was
extracted:
1. The primary endpoint of
investigation were the HRs for PFS and OS (especially OS) among cancer
patients receiving ICIs therapy exposed to PPIs or not.2. Secondary
variables including the author names, year of publication, country, ICIs
agents, tumor type, ICIs treatment line, data from single or multiple
centers, PPIs treatment window, study endpoints and number of patients.