Evidence map›Paper›PMID 28892171›Full record

SynthesisAlimentary pharmacology & therapeutics2017

Systematic review with meta-analysis: breastfeeding and the risk of Crohn's disease and ulcerative colitis.

L Xu, P Lochhead, Y Ko, B Claggett, R W Leong, A N Ananthakrishnan

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis 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 114 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed, 8 pooled it
10.0field-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.

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

114 citing papers in PubMed, 8 syntheses or guidelines pooled it, 236 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Breastfeeding Duration Is Not Associated With Offspring Inflammatory Bowel Disease Risk in Three Population-Based Birth Cohorts.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2024
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Diet and inflammatory bowel disease: The Asian Working Group guidelines.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2019
    Guideline
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Conception, pregnancy and inflammatory bowel disease-Current concepts for the practising clinician.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2026
    Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article

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

4 · The record

Corrections and comments

  • Commented on by
    2018
5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

L XuDivision of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA.
P LochheadDivision of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA.
Y KoGastroenterology and Liver Services, Concord Hospital, Sydney, NSW, Australia.
B ClaggettHarvard Medical School, Boston, MA, USA.
R W LeongGastroenterology and Liver Services, Concord Hospital, Sydney, NSW, Australia.
A N AnanthakrishnanDivision of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA.ORCID 0000-0002-9436-1821
Concord Repatriation General Hospital · AUHarvard University · USBrigham and Women's Hospital · USMassachusetts General Hospital · US

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Ramnik J Xavier · 1991 to 2026
$35.3M
Genetic predictors of anti-TNF treatment response and infections in IBDK23DK097142 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI ANANTHAKRISHNAN, ASHWIN N · 2012 to 2016
$846k
NIDDK NIH HHS K23 DK097142NIDDK NIH HHS P30 DK043351
6 · The paper itself

Abstract

backgroundBreastfeeding is a modifiable factor that may influence development of inflammatory bowel diseases. However, literature on this has been inconsistent and not accounted for heterogeneity in populations and exposure.

aimTo conduct a meta-analysis to examine the association between breastfeeding in infancy and risk of Crohn's disease (CD) and ulcerative colitis (UC).

methodsA systematic search of Medline/PubMed and Embase was performed for full text, English-language literature through November 2016. Studies were included if they described breastfeeding in infancy in patients with CD or UC, and healthy controls. Data were pooled using a random effects model for analysis.

resultsA total of 35 studies were included in the final analysis, comprising 7536 individuals with CD, 7353 with UC and 330 222 controls. Ever being breastfed was associated with a lower risk of CD (OR 0.71, 95% CI 0.59-0.85) and UC (OR 0.78, 95% CI 0.67-0.91). While this inverse association was observed in all ethnicity groups, the magnitude of protection was significantly greater among Asians (OR 0.31, 95% CI 0.20-0.48) compared to Caucasians (OR 0.78, 95% CI 0.66-0.93; P = .0001) in CD. Breastfeeding duration showed a dose-dependent association, with strongest decrease in risk when breastfed for at least 12 months for CD (OR 0.20, 95% CI 0.08-0.50) and UC (OR 0.21, 95% CI 0.10-0.43) as compared to 3 or 6 months.

conclusionBreastfeeding in infancy protects against the development of CD and ulcerative colitis.

Indexed as

Breast FeedingAsian PeopleColitis, UlcerativeCrohn DiseaseHumansRiskWhite People

Identifiers

PMID28892171
PMCPMC5688338
OpenAlexW2755139479

What OpenQuestion holds

Textmetadata
LicenceTDM
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.