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Association between proton pump inhibitor therapy and clostridium difficile infection: a contemporary systematic review and meta-analysis.

Tleyjeh, IM; Bin Abdulhak, AA; Riaz, M; Alasmari, FA; Garbati, MA; AlGhamdi, M; Khan, AR; Al Tannir, M; Erwin, PJ; Ibrahim, T; et al. Tleyjeh, IM; Bin Abdulhak, AA; Riaz, M; Alasmari, FA; Garbati, MA; AlGhamdi, M; Khan, AR; Al Tannir, M; Erwin, PJ; Ibrahim, T; Allehibi, A; Baddour, LM; Sutton, AJ (2012) Association between proton pump inhibitor therapy and clostridium difficile infection: a contemporary systematic review and meta-analysis. PLoS One, 7 (12). e50836 -e50836 (12). https://doi.org/10.1371/journal.pone.0050836
SGUL Authors: Riaz, Muhammad

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Abstract

Abstract Introduction Emerging epidemiological evidence suggests that proton pump inhibitor (PPI) acid-suppression therapy is associated with an increased risk of Clostridium difficile infection (CDI). Methods Ovid MEDLINE, EMBASE, ISI Web of Science, and Scopus were searched from 1990 to January 2012 for analytical studies that reported an adjusted effect estimate of the association between PPI use and CDI. We performed random-effect meta-analyses. We used the GRADE framework to interpret the findings. Results We identified 47 eligible citations (37 case-control and 14 cohort studies) with corresponding 51 effect estimates. The pooled OR was 1.65, 95% CI (1.47, 1.85), I2 = 89.9%, with evidence of publication bias suggested by a contour funnel plot. A novel regression based method was used to adjust for publication bias and resulted in an adjusted pooled OR of 1.51 (95% CI, 1.26–1.83). In a speculative analysis that assumes that this association is based on causality, and based on published baseline CDI incidence, the risk of CDI would be very low in the general population taking PPIs with an estimated NNH of 3925 at 1 year. Conclusions In this rigorously conducted systemic review and meta-analysis, we found very low quality evidence (GRADE class) for an association between PPI use and CDI that does not support a cause-effect relationship.

Item Type: Article
Additional Information: Copyright notice This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Keywords: Clostridium difficile, Enterocolitis, Pseudomembranous, Humans, Incidence, Proton Pump Inhibitors, Risk
SGUL Research Institute / Research Centre: Academic Structure > Population Health Research Institute (INPH)
Journal or Publication Title: PLoS One
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Dates:
DateEvent
12 December 2012Published
PubMed ID: 23236397
Web of Science ID: 23236397
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URI: https://openaccess.sgul.ac.uk/id/eprint/105308
Publisher's version: https://doi.org/10.1371/journal.pone.0050836

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