Evidence map›Paper›PMID 33030285›Full record

ArticleNeurogastroenterology and motility2021

How are perceptions of social strain and low support related to Irritable Bowel Syndrome?-A Norwegian twin study.

Julia Kutschke, Jennifer R Harris, May-Bente Bengtson

Abstract readTwin Study
In one paragraph

Article in Neurogastroenterology and motility, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
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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

3 authors.

Julia KutschkeVestfold Hospital Trust, Tønsberg, Norway.
Jennifer R HarrisDivision of Health Data and Digitalisation, The Norwegian Institute of Public Health, Oslo, Norway.
May-Bente BengtsonVestfold Hospital Trust, Tønsberg, Norway.ORCID 0000-0002-5615-7141

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSocial stress is related to symptom burden of irritable bowel syndrome (IBS). This study explores the associations between IBS and social strain or low support in close relationships, including spouse, friends, and family, in a Norwegian twin cohort.

methodsThe sample included 5442 Norwegian twins aged 40-80, of whom 589 suffer from IBS. We used multivariate structural equation models to estimate genetic and environmental sources of variation and covariation underlying IBS liability, measures of social stress and the relationships between these. The co-twin control design was used to explore the nature of the associations between IBS and social strain or low support using models that test for causality. KEY

resultsGenetic effects explained between 30% and 40% of the variation in IBS liability, social strain, and low support. The phenotypic correlations between IBS and social strain (0.20) and between IBS and low support (0.17) were primarily explained by shared genetic pathways. Surprisingly, all the genetic variation underlying the liability to develop IBS was shared with genetic influences underlying social strain and low support. In contrast, most of the nonshared environmental influences accounting for the variation of IBS risk were unique for IBS. The co-twin control analyses suggest that the relationships between IBS and the social measures reflect shared familial rather than causal effects. CONCLUSION & INFERENCES: The genetic variation of IBS risk was fully shared with genetic effects for variation in the social measures, emphasizing the contribution of genes involved in central brain-gut mechanisms to genetic variation in IBS risk.

Indexed as

Gene-Environment InteractionSocial SupportAdultAgedAged, 80 and overCohort StudiesDiseases in TwinsFemaleHumansIrritable Bowel SyndromeMaleMiddle AgedMultivariate AnalysisNorwaySocial StigmaStress, Psychologicalgeneticsirritable bowel syndromenerve-gut interactionspsychological stress

Identifiers

PMID33030285
PMCPMC8047927

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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.