Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment

Abstract Background There is a reported association between proton pump inhibitor (PPI) exposure and increased risk of Clostridium difficile infection (CDI), but less is known about how this class of medications taken during treatment might influence mortality after CDI. Here we examine 180-day mort...

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Main Authors: Evan Stuart Bradley, Emily Howe, Xun Wu, John P. Haran
Format: Article
Language:English
Published: BMC 2019-06-01
Series:Gut Pathogens
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13099-019-0309-6
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author Evan Stuart Bradley
Emily Howe
Xun Wu
John P. Haran
author_facet Evan Stuart Bradley
Emily Howe
Xun Wu
John P. Haran
author_sort Evan Stuart Bradley
collection DOAJ
description Abstract Background There is a reported association between proton pump inhibitor (PPI) exposure and increased risk of Clostridium difficile infection (CDI), but less is known about how this class of medications taken during treatment might influence mortality after CDI. Here we examine 180-day mortality rates in a cohort of CDI elders and its association with exposure to PPIs. We conducted a retrospective cohort study of elderly patients (> 65 years of age) diagnosed and treated for CDI in the years 2014–2016 (n = 874) in the Umass Memorial Health Care system, which represents both academic and community healthcare. Patient characteristics and medication use was extracted from the electronic medical record (EMR) and 6 month mortality data was obtained via the Center for Disease Control National Death Index. A Cox proportional hazards model was used to estimate hazard ratios associated with medication exposures and other relevant variables. Results Of the 874 elderly adults treated for CDI, 180-day all-cause mortality was 12.4%. Exposure to a PPI was associated with a 55% reduced risk of mortality (adjusted hazard ratio (aHR) 0.45; 95% confidence interval (CI) 0.28–0.72). In our Cox model, increasing age (aHR 1.45; 95% CI 1.14–1.84), those with severe CDI infections (aHR 1.87; 95% CI 1.22–2.88), and those with hospital acquired CDI (aHR 3.01; 95% CI 1.81–4.99) also had increased 180 day mortality risk. There were similar associations noted with both 90 day and 1-year mortality. Conclusion Use of PPIs during CDI treatment in elderly patients is associated with decreased 180-day mortality. Although use of PPIs has been associated with an increased risk of CDI, it appears to be protective against mortality when used during the treatment phase.
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spelling doaj.art-534248a34f3a4ce9b76aa6fdf84081432022-12-22T03:40:37ZengBMCGut Pathogens1757-47492019-06-011111710.1186/s13099-019-0309-6Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatmentEvan Stuart Bradley0Emily Howe1Xun Wu2John P. Haran3Department of Emergency Medicine, University of Massachusetts Medical School and Umass Memorial Medical CenterUniversity of Massachusetts Medical SchoolUniversity of Massachusetts Medical SchoolDepartment of Emergency Medicine, University of Massachusetts Medical School and Umass Memorial Medical CenterAbstract Background There is a reported association between proton pump inhibitor (PPI) exposure and increased risk of Clostridium difficile infection (CDI), but less is known about how this class of medications taken during treatment might influence mortality after CDI. Here we examine 180-day mortality rates in a cohort of CDI elders and its association with exposure to PPIs. We conducted a retrospective cohort study of elderly patients (> 65 years of age) diagnosed and treated for CDI in the years 2014–2016 (n = 874) in the Umass Memorial Health Care system, which represents both academic and community healthcare. Patient characteristics and medication use was extracted from the electronic medical record (EMR) and 6 month mortality data was obtained via the Center for Disease Control National Death Index. A Cox proportional hazards model was used to estimate hazard ratios associated with medication exposures and other relevant variables. Results Of the 874 elderly adults treated for CDI, 180-day all-cause mortality was 12.4%. Exposure to a PPI was associated with a 55% reduced risk of mortality (adjusted hazard ratio (aHR) 0.45; 95% confidence interval (CI) 0.28–0.72). In our Cox model, increasing age (aHR 1.45; 95% CI 1.14–1.84), those with severe CDI infections (aHR 1.87; 95% CI 1.22–2.88), and those with hospital acquired CDI (aHR 3.01; 95% CI 1.81–4.99) also had increased 180 day mortality risk. There were similar associations noted with both 90 day and 1-year mortality. Conclusion Use of PPIs during CDI treatment in elderly patients is associated with decreased 180-day mortality. Although use of PPIs has been associated with an increased risk of CDI, it appears to be protective against mortality when used during the treatment phase.http://link.springer.com/article/10.1186/s13099-019-0309-6Clostridium difficileEnteric pathogensInfectious diseaseMedication safetyProton pump inhibitors
spellingShingle Evan Stuart Bradley
Emily Howe
Xun Wu
John P. Haran
Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
Gut Pathogens
Clostridium difficile
Enteric pathogens
Infectious disease
Medication safety
Proton pump inhibitors
title Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
title_full Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
title_fullStr Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
title_full_unstemmed Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
title_short Proton pump inhibitors and 180-day mortality in the elderly after Clostridium difficile treatment
title_sort proton pump inhibitors and 180 day mortality in the elderly after clostridium difficile treatment
topic Clostridium difficile
Enteric pathogens
Infectious disease
Medication safety
Proton pump inhibitors
url http://link.springer.com/article/10.1186/s13099-019-0309-6
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