Evidence map›Paper›PMID 29391765›Full record

ArticleWorld journal of gastroenterology2018

Epidemiology of inflammatory bowel disease in racial and ethnic migrant groups.

Ravi Misra, Omar Faiz, Pia Munkholm, Johan Burisch, Naila Arebi

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
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  4. Diet's impact on gut microbial assemblage in health and disease.The Journal of clinical investigation · 2025
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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

5 authors at 1 institution in 1 country.

Ravi MisraDepartment of Gastroenterology, St. Marks Academic Institute, London HA1 3UJ, United Kingdom.
Omar FaizSurgical Epidemiology, Trials and Outcome Centre, St. Marks Academic Institute, London HA1 3UJ, United Kingdom.
Pia MunkholmDepartment of Gastroenterology, North Zealand University Hospital, Frederikssund Frederikssundsvej 30, Denmark.
Johan BurischDepartment of Gastroenterology, North Zealand University Hospital, Frederikssund Frederikssundsvej 30, Denmark.
Naila ArebiDepartment of Gastroenterology, St. Marks Academic Institute, London HA1 3UJ, United Kingdom. naila.arebi@imperial.ac.uk.
Marks and Spencer (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo summarise the current literature and define patterns of disease in migrant and racial groups.

methodsA structured key word search in Ovid Medline and EMBASE was undertaken in accordance with PRISMA guidelines. Studies on incidence, prevalence and disease phenotype of migrants and races compared with indigenous groups were eligible for inclusion.

resultsThirty-three studies met the inclusion criteria. Individual studies showed significant differences in incidence, prevalence and disease phenotype between migrants or race and indigenous groups. Pooled analysis could only be undertaken for incidence studies on South Asians where there was significant heterogeneity between the studies [95% for ulcerative colitis (UC), 83% for Crohn's disease (CD)]. The difference between incidence rates was not significant with a rate ratio South Asian: Caucasian of 0.78 (95%CI: 0.22-2.78) for CD and 1.39 (95%CI: 0.84-2.32) for UC. South Asians showed consistently higher incidence and more extensive UC than the indigenous population in five countries. A similar pattern was observed for Hispanics in the United States. Bangladeshis and African Americans showed an increased risk of CD with perianal disease.

conclusionThis review suggests that migration and race influence the risk of developing inflammatory bowel disease. This may be due to different inherent responses upon exposure to an environmental trigger in the adopted country. Further prospective studies on homogenous migrant populations are needed to validate these observations, with a parallel arm for in-depth investigation of putative drivers.

Indexed as

Colitis, UlcerativeCrohn DiseaseEthnicityFijiHumansIncidenceNorth AmericaPrevalenceRacial GroupsRisk FactorsSingaporeTransients and MigrantsUnited KingdomEpidemiologyEthnicityMigration

Identifiers

PMID29391765
PMCPMC5776404
OpenAlexW2783019371

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.