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Use of acid-suppressive drugs and risk of pneumonia: a systematic review and meta-analysis.


ABSTRACT:

Background

Observational studies and randomized controlled trials have yielded inconsistent findings about the association between the use of acid-suppressive drugs and the risk of pneumonia. We performed a systematic review and meta-analysis to summarize this association.

Methods

We searched three electronic databases (MEDLINE [PubMed], Embase and the Cochrane Library) from inception to Aug. 28, 2009. Two evaluators independently extracted data. Because of heterogeneity, we used random-effects meta-analysis to obtain pooled estimates of effect.

Results

We identified 31 studies: five case-control studies, three cohort studies and 23 randomized controlled trials. A meta-analysis of the eight observational studies showed that the overall risk of pneumonia was higher among people using proton pump inhibitors (adjusted odds ratio [OR] 1.27, 95% confidence interval [CI] 1.11-1.46, I(2) 90.5%) and histamine(2) receptor antagonists (adjusted OR 1.22, 95% CI 1.09-1.36, I(2) 0.0%). In the randomized controlled trials, use of histamine(2) receptor antagonists was associated with an elevated risk of hospital-acquired pneumonia (relative risk 1.22, 95% CI 1.01-1.48, I(2) 30.6%).

Interpretation

Use of a proton pump inhibitor or histamine(2) receptor antagonist may be associated with an increased risk of both community- and hospital-acquired pneumonia. Given these potential adverse effects, clinicians should use caution in prescribing acid-suppressive drugs for patients at risk.

SUBMITTER: Eom CS 

PROVIDER: S-EPMC3042441 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature

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Publications

Use of acid-suppressive drugs and risk of pneumonia: a systematic review and meta-analysis.

Eom Chun-Sick CS   Jeon Christie Y CY   Lim Ju-Won JW   Cho Eun-Geol EG   Park Sang Min SM   Lee Kang-Sook KS  

CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne 20101220 3


<h4>Background</h4>Observational studies and randomized controlled trials have yielded inconsistent findings about the association between the use of acid-suppressive drugs and the risk of pneumonia. We performed a systematic review and meta-analysis to summarize this association.<h4>Methods</h4>We searched three electronic databases (MEDLINE [PubMed], Embase and the Cochrane Library) from inception to Aug. 28, 2009. Two evaluators independently extracted data. Because of heterogeneity, we used  ...[more]

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