• Minxia Li, Fei Xue, Jie Yang, and Xiaodong Pan.
• The People's Hospital of Danyang city, Danyang, Jiangsu Province.
• Medicine (Baltimore). 2020 Dec 24; 99 (52): e23723e23723.

BackgroundGastric cancer is one of the common gastrointestinal tumors, with high recurrence and metastasis rates. Tumor marker tumor marker carbohydrate antigen 72-4 (CA72-4) has been used in the screening and diagnosis of gastric cancer, but whether it can be used as an indicator to monitor the prognosis of gastric cancer remains a great controversy. The purpose of this study was to systematically evaluate the correlation between tumor marker CA72-4 and prognosis of gastric cancer patients.MethodsA systematic search was performed by retrieving on English databases (PubMed, Embase, Web of Science, the Cochrane Library) and Chinese databases (China Knowledge Network, Wanfang, Weipu (VIP Information Chinese Journal Service Platform), CBM) of clinical study on the correlation between tumor marker CA72-4 and prognosis of gastric cancer patients. The retrieval time limit was from the establishment of the database to October 2020. Two researchers independently extracted and evaluated the quality of the data in the included study. A meta-analysis was performed using Stata12.0 and RevMan5.3 software.ConclusionsThis study will compare the correlation between tumor marker CA72-4 and prognosis of gastric cancer patients, so as to provide evidence-based basis for clinicians to select prognostic indicators of gastric cancer.Ethics And DisseminationPrivate information from individuals will not be published. This systematic review also does not involve endangering participant rights. Ethical approval was not required. The results may be published in a peer-reviewed journal or disseminated at relevant conferences.Osf Registration NumberDOI: 10.17605 / OSF.IO / B3AMN.Copyright © 2020 the Author(s). Published by Wolters Kluwer Health, Inc.

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