Evidence map›Paper›PMID 30549152›Full record

ArticleNeurogastroenterology and motility2019

Multiple psychological factors predict abdominal pain severity in children with irritable bowel syndrome.

John M Hollier, Miranda A L van Tilburg, Yan Liu, Danita I Czyzewski, Mariella M Self, Erica M Weidler, Margaret Heitkemper, Robert J Shulman

Open access · greenAbstract read
In one paragraph

Article in Neurogastroenterology and motility, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.8field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 46 citations in OpenAlex.

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  11. Carbidopa: beyond Parkinson's disease.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 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

8 authors at 4 institutions in 1 country.

John M HollierDepartment of Pediatrics, Baylor College of Medicine, Houston, Texas.ORCID 0000-0002-3296-5240
Miranda A L van TilburgDepartment of Clinical Research, College of Pharmacy & Health Sciences, Campbell University, Buies Creek, North Carolina.ORCID 0000-0002-0504-9829
Yan LiuDepartment of Medicine, Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas.ORCID 0000-0001-5497-6197
Danita I CzyzewskiDepartment of Pediatrics, Baylor College of Medicine, Houston, Texas.
Mariella M SelfDepartment of Pediatrics, Baylor College of Medicine, Houston, Texas.ORCID 0000-0002-7622-3089
Erica M WeidlerDepartment of Pediatrics, Baylor College of Medicine, Houston, Texas.ORCID 0000-0002-3136-7329
Margaret HeitkemperDepartment of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, Washington.
Robert J ShulmanDepartment of Pediatrics, Baylor College of Medicine, Houston, Texas.ORCID 0000-0003-2385-0991
Baylor College of Medicine · USAgricultural Research Service · USUniversity of North Carolina at Chapel Hill · USUniversity of Washington · US

Funding

Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI James Versalovic · 2001 to 2026
$28.3M
Research Training in Pediatrics GastroenterolgyT32DK007664 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI DOUGLAS G BURRIN · 1991 to 2026
$8.4M
PATHWAYS TO NEW BIOMARKERS IN RECURRENT ABDOMINAL PAIN IN CHILDRENR01NR013497 · NINR · BAYLOR COLLEGE OF MEDICINE · PI SAVIDGE, TOR C. · 2012 to 2024
$4.7M
Recurrent Abdominal Pain in ChildrenR01NR005337 · NINR · BAYLOR COLLEGE OF MEDICINE · PI SHULMAN, ROBERT J · 2002 to 2012
$4.3M
Abdominal Symptom Phenotypes: Pathways to New BiomarkersRC2NR011959 · NINR · UNIVERSITY OF WASHINGTON · PI HEITKEMPER, MARGARET MCLEAN, SHULMAN, ROBERT J · 2009 to 2010
$1.9M
Agricultural Research Service Cooperative Agreement 6250-51000-043NIDDK NIH HHS P30 DK056338NIDDK NIH HHS T32 DK007664NINR NIH HHS R01 NR005337NINR NIH HHS R01 NR013497NINR NIH HHS R01 NR05337NINR NIH HHS RC2 NR011959
6 · The paper itself

Abstract

backgroundAnxiety and depression are implicated as contributors to abdominal pain in pediatric irritable bowel syndrome (IBS) but is unclear if this pain is associated with other psychological factors. The study objective was to test if the impact of anxiety or depression on IBS symptom severity is mediated by somatization and/or pain catastrophizing.

methodsWe utilized baseline data from local pediatric IBS clinical studies. Through mediation analysis, we assessed whether somatization or pain catastrophizing mediated (either independently or combined) the separate relationships of anxiety or depression with IBS abdominal pain severity. KEY

resultsWe analyzed 261 participants. All psychological factors were positively correlated with one another and IBS abdominal pain severity. The association of anxiety with IBS abdominal pain was mediated by both somatization and pain catastrophizing in individual analyses (each mediated standardized coefficient [β] 0.11, CI 0.05-0.18) and in multiple analysis (mediated standardized β 0.18, CI 0.09-0.27). The association of depression with IBS abdominal pain was also mediated by somatization (mediated standardized β 0.08, CI0.02-0.14) and pain catastrophizing (mediated standardized β 0.06, CI 0.01-0.11) in individual analyses and in multiple analysis (mediated standardized β 0.19, CI 0.04-0.19). CONCLUSIONS AND INFERENCES: Somatization and pain catastrophizing mediate the relationships between anxiety/depression and IBS abdominal pain severity. These findings suggest that somatization and pain catastrophizing may be better treatment targets than anxiety and depression. Clinicians should assess these psychological factors in pediatric IBS patients and refer for intervention to improve outcomes.

Indexed as

Abdominal PainAnxietyCatastrophizationChildDepressionFemaleHumansIrritable Bowel SyndromeMaleSomatoform Disordersanxietydepressionirritable bowel syndromemediation analysispain catastrophizingpediatricpsychological factorssomatization

Identifiers

PMID30549152
PMCPMC6651721
OpenAlexW2904025184

What OpenQuestion holds

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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.