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Use of Proton Pump Inhibitor and Risk of Colorectal Cancer: A Meta-analysis of Observational Studies

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Authors
Ahn, Jeong Soo; Park, Sang Min; Eom, Chun Sick; Kim, Sarah; Myung, Seung-Kwon
Issue Date
2012-09
Publisher
The Korean Academy of Family Medicine
Citation
Korean J Fam Med. Vol.33 No.5, pp. 272-279
Keywords
의약학Proton Pump InhibitorsColorectal NeoplasmsMeta-analysis
Abstract
Background: Previous case-control studies have reported inconsistent findings regarding the association between protonpump inhibitor (PPI) use and colorectal cancer (CRC) risk. We investigated these associations using meta-analysis.Methods: We searched MEDLINE (PubMed), EMBASE, and the Cochrane Library in April 2011. Two evaluatorsindependently reviewed and selected articles, based on pre-determined selection criteria.Results: Out of 737 articles meeting our initial criteria, 5 case-control studies, which involved 120,091 participants (9,514cases and 110,577 controls), were included in the final analyses. The overall use of PPI (used vs. never or rarely used) wasnot significantly associated with the risk of CRC in a fixed-effects model meta-analysis of all 5 case-control studies (oddsratio [OR], 1.08; 95% confidence interval [CI], 0.96 to 1.20; I2 = 3.5%). Also, in sensitivity meta-analysis by cumulativeduration of PPI use, there was no association between PPI use of 1 year or longer and the risk of colorectal cancer in afixed-effects meta-analysis (OR, 1.09; 95% CI, 0.98 to 1.22; I2 = 0%).Conclusion: Although hypergastrinemia could be an important factor in the pathogenesis of some colorectal cancers,our study suggests that this does not lead to significant clinical risk for most PPI users. Further prospective studies orrandomized controlled trials related to PPI use and colorectal cancer risk are needed to investigate this association.
ISSN
1225-4908
Language
English
URI
http://hdl.handle.net/10371/81688
DOI
https://doi.org/10.4082/kjfm.2012.33.5.272
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College of Medicine/School of Medicine (의과대학/대학원)Family Medicine (가정의학전공)Journal Papers (저널논문_가정의학전공)
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