Evidence map›Paper›PMID 26729146›Full record

ArticleInternational journal of environmental research and public health2015

The Urban-Rural Gradient In Asthma: A Population-Based Study in Northern Europe.

Signe Timm, Morten Frydenberg, Christer Janson, Brittany Campbell, Bertil Forsberg, Thorarinn Gislason, Mathias Holm, Rain Jogi, Ernst Omenaas, Torben Sigsgaard and 2 more

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 62 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Environmental influences on childhood allergies and asthma - The Farm effect.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2022
    Review
  8. Article
  9. 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
    Article
  10. Review
  11. Review
  12. Omics for the future in asthma.Seminars in immunopathology · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. A Review of the Field on Children's Exposure to Environmental Contaminants: A Risk Assessment Approach.International journal of environmental research and public health · 2017
    Review
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 6 countries.

Signe TimmDepartment of Public Health, Danish Ramazzini Centre, Aarhus University, DK-8000 Aarhus C, Denmark. signe.timm@ph.au.dk.
Morten FrydenbergDepartment of Public Health, Danish Ramazzini Centre, Aarhus University, DK-8000 Aarhus C, Denmark. morten@ph.au.dk.
Christer JansonDepartment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, 751 05 Uppsala, Sweden. christer.janson@medsci.uu.se.
Brittany CampbellAllergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Victoria 3010, Australia. brittany.campbell@unimelb.edu.au.
Bertil ForsbergDivision of Occupational and Environmental Medicine, Department of Public Health and Clinical Medicine, Umeå University, 901 87 Umeå, Sweden. bertil.forsberg@envmed.umu.se.
Thorarinn GislasonDepartment of Respiratory Medicine and Sleep, Landspitali University Hospital, Reykjavik IS-108, Iceland. thorarig@landspitali.is.
Mathias HolmDepartment of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg 405 30, Sweden. mathias.holm@amm.gu.se.
Rain JogiLung Clinic, Tartu University Hospital, Tartu 50406, Estonia. Rain.Jogi@kliinikum.ee.
Ernst OmenaasInstitute of Clinical Science, University of Bergen, 5020 Bergen, Norway. ernst.omenaas@helse-bergen.no.
Torben SigsgaardDepartment of Public Health, Danish Ramazzini Centre, Aarhus University, DK-8000 Aarhus C, Denmark. ts@ph.au.dk.
Cecilie SvanesInstitute of Clinical Science, University of Bergen, 5020 Bergen, Norway. cecilie.svanes@helse-bergen.no.
Vivi SchlünssenDepartment of Public Health, Danish Ramazzini Centre, Aarhus University, DK-8000 Aarhus C, Denmark. vs@ph.au.dk.
Aarhus University · DKUniversity of Bergen · NOReykjavík University · ISSahlgrenska University Hospital · SETartu University Hospital · EEThe University of Melbourne · AUUmeå University · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The early life environment appears to have a persistent impact on asthma risk. We hypothesize that environmental factors related to rural life mediate lower asthma prevalence in rural populations, and aimed to investigate an urban-rural gradient, assessed by place of upbringing, for asthma. The population-based Respiratory Health In Northern Europe (RHINE) study includes subjects from Denmark, Norway, Sweden, Iceland and Estonia born 1945-1973. The present analysis encompasses questionnaire data on 11,123 RHINE subjects. 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. The association of place of upbringing with asthma onset was analysed with Cox regression adjusted for relevant confounders. Subjects growing up on livestock farms had less asthma (8%) than subjects growing up in inner cities (11%) (hazard ratio 0.72 95% CI 0.57-0.91), and a significant urban-rural gradient was observed across six urbanisation levels (p = 0.02). An urban-rural gradient was only evident among women, smokers and for late-onset asthma. Analyses on wheeze and place of upbringing revealed similar results. In conclusion, this study suggests a protective effect of livestock farm upbringing on asthma development and an urban-rural gradient in a Northern European population.

Indexed as

AdultAsthmaCross-Sectional StudiesEuropeFemaleHealth SurveysHumansIncidenceMaleMiddle AgedPrevalenceProportional Hazards ModelsProtective FactorsResidence CharacteristicsRisk FactorsRural Healthasthmaearly life environmentfarminghygiene hypothesismicrobial exposureRHINEurban-rural gradient

Identifiers

PMID26729146
PMCPMC4730484
OpenAlexW2209564672

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.