Evidence map›Paper›PMID 28741616›Full record

ArticleThe American journal of gastroenterology2017

Rural and Urban Residence During Early Life is Associated with Risk of Inflammatory Bowel Disease: A Population-Based Inception and Birth Cohort Study

Eric I Benchimol, Gilaad G Kaplan, Anthony R Otley, Geoffrey C Nguyen, Fox E Underwood, Astrid Guttmann, Jennifer L Jones, Beth K Potter, Christina A Catley, Zoann J Nugent and 20 more

Erratum issued Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in The American journal of gastroenterology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT03262649 (Manitoba Inflammatory Bowel Disease Cohort Study), which is not on this map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
10.8field-weighted citation impact, top 1% 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.

NCT03262649 completednot on this map

Manitoba Inflammatory Bowel Disease Cohort Study

TypeobservationalSponsorUniversity of ManitobaRan2002 to 2016Enrolled388ConditionsInflammatory Bowel Diseases, Crohn Disease, Ulcerative Colitis
3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 122 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Geographic Inequities in Access to Phase 3 Clinical Trials for Inflammatory Bowel Disease in the United States.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2024
    Article
  19. Amyloid, Crohn's disease, and Alzheimer's disease - are they linked?Frontiers in cellular and infection microbiology · 2024
    Review
  20. Review

3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

30 authors at 12 institutions in 1 country.

Eric I BenchimolChildren's Hospital of Eastern Ontario IBD Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Canada.
Gilaad G KaplanDepartment of Medicine, University of Calgary, Calgary, Canada.
Anthony R OtleyDepartment of Pediatrics, Dalhousie University, Halifax, Canada.
Geoffrey C NguyenInstitute for Clinical Evaluative Sciences, Toronto, Canada.
Fox E UnderwoodDepartment of Medicine, University of Calgary, Calgary, Canada.
Astrid GuttmannInstitute for Clinical Evaluative Sciences, Toronto, Canada.
Jennifer L JonesDepartment of Medicine, Dalhousie University, Halifax, Canada.
Beth K PotterSchool of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada.
Christina A CatleyInstitute for Clinical Evaluative Sciences, Toronto, Canada.
Zoann J NugentUniversity of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, Canada.
Yunsong CuiDepartment of Medicine, Dalhousie University, Halifax, Canada.
Divine TanyingohDepartment of Medicine, University of Calgary, Calgary, Canada.
Nassim MojaverianInstitute for Clinical Evaluative Sciences, Toronto, Canada.
Alain BittonMcGill University Health Centre, Division of Gastroenterology, Montreal, Canada.
Matthew W CarrollDivision of Pediatric Gastroenterology and Nutrition, Department of Pediatrics, University of Alberta, Edmonton, Canada.
Jennifer deBruynDivision of Gastroenterology, Department of Pediatrics, University of Calgary, Calgary, Canada.
Trevor J B DummerSchool of Population and Public Health, University of British Columbia, Vancouver, Canada.
Wael El-MataryDepartment of Pediatrics and Child Health, University of Manitoba, Winnipeg, Canada.
Anne M GriffithsDepartment of Paediatrics, University of Toronto, Toronto, Canada.
Kevan JacobsonDepartment of Pediatrics, University of British Columbia, Vancouver, Canada.
M Ellen KuenzigChildren's Hospital of Eastern Ontario IBD Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Canada.
Desmond LeddinDepartment of Medicine, Dalhousie University, Halifax, Canada.
Lisa M LixDepartment of Community Health Sciences, University of Manitoba, Winnipeg, Canada.
David R MackChildren's Hospital of Eastern Ontario IBD Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Canada.
Sanjay K MurthyInstitute for Clinical Evaluative Sciences, Toronto, Canada.
Juan Nicolás Peña SánchezDepartment of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, Canada.
Harminder SinghUniversity of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, Canada.
Laura E TargownikUniversity of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, Canada.
Maria VutcoviciMcGill University Health Centre, Division of Gastroenterology, Montreal, Canada.
Charles N BernsteinUniversity of Manitoba IBD Clinical and Research Centre, University of Manitoba, Winnipeg, Canada.
University of Manitoba · CAInstitute for Clinical Evaluative Sciences · CADalhousie University · CAUniversity of Calgary · CAUniversity of Ottawa · CAMcGill University Health Centre · CAChild and Family Research Institute · CAChildren's Hospital of Eastern Ontario · CAUniversity of Alberta · CAUniversity of British Columbia · CAUniversity of Saskatchewan · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo determine the association between inflammatory bowel disease (IBD) and rural/urban household at the time of diagnosis, or within the first 5 years (y) of life.

methodsPopulation-based cohorts of residents of four Canadian provinces were created using health administrative data. Rural/urban status was derived from postal codes based on population density and distance to metropolitan areas. Validated algorithms identified all incident IBD cases from administrative data (Alberta: 1999-2008, Manitoba and Ontario: 1999-2010, and Nova Scotia: 2000-2008). We determined sex-standardized incidence (per 100,000 patient-years) and incident rate ratios (IRR) using Poisson regression. A birth cohort was created of children in whom full administrative data were available from birth (Alberta 1996-2010, Manitoba 1988-2010, and Ontario 1991-2010). IRR was calculated for residents who lived continuously in rural/urban households during each of the first 5 years of life.

resultsThere were 6,662 rural residents and 38,905 urban residents with IBD. Incidence of IBD per 100,000 was 33.16 (95% CI 27.24-39.08) in urban residents, and 30.72 (95% CI 23.81-37.64) in rural residents (IRR 0.90, 95% CI 0.81-0.99). The protective association was strongest in children <10 years (IRR 0.58, 95% CI 0.43-0.73) and 10-17.9 years (IRR 0.72, 95% CI 0.64-0.81). In the birth cohort, comprising 331 rural and 2,302 urban residents, rurality in the first 1-5 years of life was associated with lower risk of IBD (IRR 0.75-0.78).

conclusionsPeople living in rural households had lower risk of developing IBD. This association is strongest in young children and adolescents, and in children exposed to the rural environment early in life.

Indexed as

Residence CharacteristicsAdolescentAdultAgedCanadaChildChild, PreschoolCohort StudiesFemaleHumansIncidenceInfantInflammatory Bowel DiseasesMaleMiddle AgedPopulation Surveillance

Identifiers

PMID28741616
PMCPMC5596205
OpenAlexW2737806741

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

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.