Evidence map›Paper›PMID 28702305›Full record

ArticlePneumonia (Nathan Qld.)2017

Increased risk of pneumonia in residents living near poultry farms: does the upper respiratory tract microbiota play a role?

Lidwien A M Smit, Gert Jan Boender, Wouter A A de Steenhuijsen Piters, Thomas J Hagenaars, Elisabeth G W Huijskens, John W A Rossen, Marion Koopmans, Gonnie Nodelijk, Elisabeth A M Sanders, Joris Yzermans and 2 more

Open access · goldAbstract read
In one paragraph

Article in Pneumonia (Nathan Qld.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  4. Zoonotic bacteria in the vicinity of animal farms as a factor disturbing the human microbiome: a review.International journal of occupational medicine and environmental health · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 8 institutions in 1 country.

Lidwien A M SmitInstitute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, PO Box 80178, 3508 TD Utrecht, The Netherlands.
Gert Jan BoenderCentral Veterinary Institute, Wageningen University and Research Centre, Lelystad, The Netherlands.
Wouter A A de Steenhuijsen PitersDepartment of Paediatric Immunology and Infectious Diseases, The Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands.
Thomas J HagenaarsCentral Veterinary Institute, Wageningen University and Research Centre, Lelystad, The Netherlands.
Elisabeth G W HuijskensDepartment of Medical Microbiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands.
John W A RossenLaboratory of Medical Microbiology and Immunology, St. Elisabeth Hospital, Tilburg, The Netherlands.
Marion KoopmansDepartment of Virology, Erasmus Medical Centre, Rotterdam, The Netherlands.
Gonnie NodelijkCentral Veterinary Institute, Wageningen University and Research Centre, Lelystad, The Netherlands.
Elisabeth A M SandersDepartment of Paediatric Immunology and Infectious Diseases, The Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands.
Joris YzermansNIVEL, Netherlands Institute for Health Services Research, Utrecht, The Netherlands.
Debby BogaertDepartment of Paediatric Immunology and Infectious Diseases, The Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands.
Dick HeederikInstitute for Risk Assessment Sciences (IRAS), Division Environmental Epidemiology, Utrecht University, PO Box 80178, 3508 TD Utrecht, The Netherlands.
Wageningen University & Research · NLUtrecht University · NLWilhelmina Children's Hospital · NLAlbert Schweitzer Ziekenhuis · NLElisabeth-TweeSteden Ziekenhuis · NLErasmus University Rotterdam · NLNetherlands Institute for Health Services Research · NLUniversity Medical Center Utrecht · NL

Funding

Chief Scientist Office SCAF/16/03
6 · The paper itself

Abstract

backgroundAir pollution has been shown to increase the susceptibility to community-acquired pneumonia (CAP). Previously, we observed an increased incidence of CAP in adults living within 1 km from poultry farms, potentially related to particulate matter and endotoxin emissions. We aim to confirm the increased risk of CAP near poultry farms by refined spatial analyses, and we hypothesize that the oropharyngeal microbiota composition in CAP patients may be associated with residential proximity to poultry farms.

methodsA spatial kernel model was used to analyze the association between proximity to poultry farms and CAP diagnosis, obtained from electronic medical records of 92,548 GP patients. The oropharyngeal microbiota composition was determined in 126 hospitalized CAP patients using 16S-rRNA-based sequencing, and analyzed in relation to residential proximity to poultry farms.

resultsKernel analysis confirmed a significantly increased risk of CAP when living near poultry farms, suggesting an excess risk up to 1.15 km, followed by a sharp decline. Overall, the oropharyngeal microbiota composition differed borderline significantly between patients living <1 km and ≥1 km from poultry farms (PERMANOVA

conclusionLiving near poultry farms is associated with an 11% increased risk of CAP, possibly resulting from changes in the upper respiratory tract microbiota composition in susceptible individuals. The abundance of

Indexed as

Air pollutionEnvironmentMicrobiomePneumonia

Identifiers

PMID28702305
PMCPMC5471663
OpenAlexW2586352357

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.