Evidence map›Paper›PMID 27890047›Full record

ArticleEuropean clinical respiratory journal2016

A clear urban-rural gradient of allergic rhinitis in a population-based study in Northern Europe.

Stine Holmegaard Christensen, Signe Timm, Christer Janson, Bryndis Benediktsdóttir, Bertil Forsberg, Mathias Holm, Rain Jogi, Ane Johannessen, Ernst Omenaas, Torben Sigsgaard and 2 more

Open access · goldAbstract read
In one paragraph

Article in European clinical respiratory journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
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  3. Assessing Disparities in the Prevalence of Atopic Comorbidities Among Food-Allergic Children.The journal of allergy and clinical immunology. In practice · 2023
    Article
  4. Article
  5. The Environmental Microbiome, Allergic Disease, and Asthma.The journal of allergy and clinical immunology. In practice · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Risk factors associated with rhinitis, allergic conjunctivitis and eczema among schoolchildren in Uganda.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2021
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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 5 countries.

Stine Holmegaard ChristensenDepartment of Public Health, Section for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark.
Signe TimmDepartment of Public Health, Section for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark.
Christer JansonDepartment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
Bryndis BenediktsdóttirFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Bertil ForsbergDivision of Occupational and Environmental Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.
Mathias HolmDepartment of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden.
Rain JogiLung Clinic, Tartu University Hospital, Tartu, Estonia.
Ane JohannessenCentre for Clinical Research, Haukeland University Hospital, Bergen, Norway.
Ernst OmenaasCentre for Clinical Research, Haukeland University Hospital, Bergen, Norway.
Torben SigsgaardDepartment of Public Health, Section for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark.
Cecilie SvanesCentre for Clinical Research, Haukeland University Hospital, Bergen, Norway.
Vivi SchlünssenDepartment of Public Health, Section for Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark.
Aarhus University · DKHaukeland University Hospital · NONational Research Centre for the Working Environment · DKSahlgrenska University Hospital · SETartu University Hospital · EEUmeå University · SEUniversity of Iceland · ISUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe protective effect of farm upbringing on allergic rhinitis is well known, but how upbringing in other environments influences the development of allergic rhinitis is scarcely investigated. The aim of this study was to investigate the association between place of upbringing and pet keeping in childhood and allergic rhinitis and nasal symptoms in adulthood.

methodsThe population-based Respiratory Health in Northern Europe study includes subjects from Denmark, Norway, Sweden, Iceland, and Estonia born in 1945-1973. This paper analyses 13,376 participants of the third study wave. Six categories of place of upbringing were defined: farm with livestock, farm without livestock, village in rural area, small town, city suburb, and inner city. Pets in the home at birth and during childhood were recorded. Data were analysed using adjusted logistic regression models.

resultsLivestock farm upbringing predicted less adult allergic rhinitis [odds ratio (OR) 0.68, 0.54-0.85] and nasal symptoms (OR 0.82, 0.68-0.99) than city upbringing, and an urban-rural gradient with decreasing risk per level of urbanisation was observed (OR 0.92, 0.88-0.94). Pets in the home at birth (OR 0.78, 0.68-0.88) and during childhood (OR 0.83, 0.74-0.93) were associated with less subsequent allergic rhinitis. Pet keeping did not explain the protective effect of place of upbringing.

conclusionRisk of allergic rhinitis and nasal symptoms in adulthood was inversely associated with the level of urbanisation during upbringing. Pets at birth decreased the risk further, but did not explain the urban-rural gradient. Persistent beneficial effects of microbial diversity in early life might be an explanation for the findings.

Indexed as

allergic rhinitismicrobial diversitymicrobial exposurenasal symptomspetsplace of upbringing

Identifiers

PMID27890047
PMCPMC5124633
OpenAlexW2551133888

What OpenQuestion holds

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Registered trials

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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.