Evidence map›Paper›PMID 28176348›Full record

ArticleAlimentary pharmacology & therapeutics2017

Inflammatory bowel diseases in Faroese-born Danish residents and their offspring: further evidence of the dominant role of environmental factors in IBD development.

T Hammer, S N Lophaven, K R Nielsen, M von Euler-Chelpin, P Weihe, P Munkholm, J Burisch, E Lynge

Open access · hybridAbstract read
In one paragraph

Article in Alimentary pharmacology & therapeutics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.7field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
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  8. Article
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  11. High incidence of dementia in Faroese-born female residents in Denmark.Alzheimer's & dementia (New York, N. Y.) · 2020
    Article
  12. Article
  13. Review
  14. The Natural History of IBD: Lessons Learned.Current treatment options in gastroenterology · 2018
    Review
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

T HammerDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.ORCID 0000-0002-5242-955X
S N LophavenDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
K R NielsenMedical Centre, National Hospital, Tórshavn, Faroe Islands.
M von Euler-ChelpinDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
P WeiheDepartment of Occupational Medicine and Public Health, The Faroese Hospital System, Tórshavn, Faroe Islands.
P MunkholmDepartment of Gastroenterology, North Zealand Hospital, Copenhagen, Denmark.
J BurischDepartment of Gastroenterology, North Zealand Hospital, Copenhagen, Denmark.ORCID 0000-0002-3312-5139
E LyngeDepartment of Public Health, University of Copenhagen, Copenhagen, Denmark.
University of Copenhagen · DKUniversity of the Faroe Islands · FOZealand University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe incidence of inflammatory bowel disease (IBD) is record high in the Faroe Islands, and many Faroese emigrate to Denmark, where the IBD incidence is considerably lower.

aimTo study the IBD incidence in first-, second- and third-generation immigrants from the Faroe Islands to Denmark to assess the extent to which the immigrants adopt the lower IBD incidence of their new home country.

methodsData on Faroese-born Danish residents and their children were retrieved from the Danish Central Population Register for 1980-2014. Incident IBD cases were identified from the Danish National Patient Register. Standardised Incidence Ratios (SIRs) were used to compare the IBD risk in immigrants with that of Danes. 95% confidence intervals (CI) were calculated using the square-root transform.

resultsFirst-generation Faroese immigrants had a higher IBD incidence than Danes, SIR 1.25 (95% CI, 0.97-1.59) for men and 1.28 (95% CI, 1.05-1.53) for women. This excess risk derived from ulcerative colitis (UC), SIR 1.44 (95% CI, 1.10-1.87) for men and 1.36 (95% CI, 1.09-1.68) for women. No excess risk was found for Crohn's disease (CD). The UC risk was nearly doubled during the immigrants' first 10 years in Denmark; SIR 2.13 (95% CI, 1.52-2.92) for men and 1.63 (95% CI, 1.19-2.18) for women.

conclusionsAlthough some impact of genetic dilution cannot be excluded, our findings indicate importance of gene-environment interplay in UC, as the excess UC risk in Faroese immigrants to Denmark disappeared over time and over one generation in men and over two generations in women.

Indexed as

EnvironmentAdolescentAdultAdult ChildrenAgedAged, 80 and overChildChild, PreschoolColitis, UlcerativeCrohn DiseaseDenmarkDisease SusceptibilityEmigrants and ImmigrantsFemaleHumansIncidence

Identifiers

PMID28176348
PMCPMC5396334
OpenAlexW2586191660

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.