Evidence map›Paper›PMID 26585714›Full record

ArticleBMC gastroenterology2015

Perceived food intolerance and irritable bowel syndrome in a population 3 years after a giardiasis-outbreak: a historical cohort study.

Sverre Litleskare, Knut-Arne Wensaas, Geir Egil Eide, Kurt Hanevik, Gudrun Elise Kahrs, Nina Langeland, Guri Rortveit

Open access · goldAbstract read
In one paragraph

Article in BMC gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

7 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Frontiers in cellular and infection microbiology · 2017
    Review
  7. 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

7 authors at 3 institutions in 1 country.

Sverre LitleskareResearch Unit for General Practice, Uni Research Health, Kalfarveien 31, N-5018, Bergen, Norway. sverre.litleskare@uni.no.
Knut-Arne WensaasResearch Unit for General Practice, Uni Research Health, Kalfarveien 31, N-5018, Bergen, Norway. knut-arne.wensaas@uni.no.
Geir Egil EideCentre for Clinical Research, Haukeland University Hospital, Bergen, Norway. geir.egil.eide@helse-bergen.no.
Kurt HanevikNational Centre for Tropical Infectious Diseases, Haukeland University Hospital, Bergen, Norway. kurt.hanevik@uib.no.
Gudrun Elise KahrsDepartment of Clinical Nutrition, Haukeland University Hospital, Bergen, Norway. gudrun.elise.kahrs@helse-bergen.no.
Nina LangelandDepartment of Clinical Science, University of Bergen, Bergen, Norway. nina.langeland@uib.no.
Guri RortveitResearch Unit for General Practice, Uni Research Health, Kalfarveien 31, N-5018, Bergen, Norway. guri.rortveit@uib.no.
Haukeland University Hospital · NOUni Research (Norway) · NOUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies have shown an increased prevalence of irritable bowel syndrome (IBS) after acute gastroenteritis. Food as a precipitating and perpetuating factor in IBS has gained recent interest, but food intolerance following gastroenteritis is less investigated. The aims of this study were firstly, to compare perceived food intolerance in a group previously exposed to Giardia lamblia with a control group; secondly, to explore the relation with IBS status; and thirdly, to investigate associations with content of fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) in foods reported.

methodsThis is a historical cohort study with mailed questionnaire to 1252 Giardia exposed and a control cohort matched by gender and age. Differences between groups were investigated using bivariate and multivariate analyses.

resultsThe questionnaire response rate in the exposed group was 65.3 % (817/1252) and in the control group 31.4 % (1128/3598). The adjusted odds ratio (OR) for perceived food intolerance for the exposed group was 2.00 with 95 % confidence interval (CI): 1.65 to 2.42, as compared with the control group. Perceived intolerance for dairy products was the most frequently reported intolerance, with an adjusted OR for the exposed of 1.95 (95 % CI: 1.51 to 2.51). Perceived intolerance for fatty foods, vegetables, fruit, cereals and alcohol was also significantly higher in the exposed group. The groups did not differ in perceived intolerance to spicy foods, coffee or soda. The association between exposure to Giardia infection and perceived food intolerance differed between the IBS group and the no-IBS group, but IBS was not a significant effect modifier for the association. Perceived intolerance for high FODMAP foods (adjusted OR 1.91) and low FODMAP foods (adjusted OR 1.55) was significantly associated with exposure status.

conclusionExposure to Giardia infection was associated with perceived food intolerance 3 years after giardiasis. IBS status did not alter the association between exposure status and perceived food intolerance. Perceived intolerance to high FODMAP foods and low FODMAP foods were both statistically significantly associated with exposure to Giardia infection.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolCohort StudiesDisease OutbreaksFemaleFermentationFoodFood HypersensitivityGiardiasisHumansInfantInfant, Newborn

Identifiers

PMID26585714
PMCPMC4653841
OpenAlexW2184388810

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.