Psychosocial predictors of irritable bowel syndrome diagnosis and symptom severity

Phillips, Kristy; Wright, Bradley J.; Kent, Stephen

doi:10.1016/j.jpsychores.2013.08.002

Cited by 61Gastrointestinal motility and disordersPsychosomatic Disorders and Their TreatmentsInfant Health and Development

Psychosocial predictors of irritable bowel syndrome diagnosis and symptom severity

Phillips, Kristy, Wright, Bradley J., Kent, Stephen·2013·Journal of Psychosomatic Research

DOI 10.1016/j.jpsychores.2013.08.002

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Abstract

Objective This study explored the role of psychosocial factors in predicting both membership to either an irritable bowel syndrome (IBS) or control group, and the severity of IBS symptoms.Methods A total of 149 participants (82 IBS and 67 controls) completed a battery of self-report inventories assessing disposition and environment, cognitive processes, and psychological distress. Logistic regression analyses were used to assess predictive contribution of psychosocial variables to IBS diagnosis. Hierarchical linear regression was then used to assess the relationship of psychosocial variables with the severity of IBS symptoms.Results Significant predictors of IBS were found to be alexithymia, the defectiveness/shame schema, and four coping dimensions (active coping, instrumental support, self-blame, and positive reframing), χ(2) (6, N=130)=46.99, p<.001, with predictive accuracy of 72%. Significant predictors of IBS symptom severity were two of the alexithymia subscales (difficulty identifying feelings, and difficulty describing feelings), gender, the schemas of defectiveness/shame and entitlement, and global psychological distress. This model predicted IBS severity F (6, 64)=16.94, p<.001 and accounted for 61.3% of the variability in IBS severity scores.Conclusion Psychosocial variables account for a large percentage of the differences between an IBS and control group, as well as the variance of symptoms experienced within the IBS group. Alexithymia and the defectiveness schema appear to be related to both IBS and symptom severity.

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The severity of IBS symptoms was predicted by psychological distress.
“Additionally, the severity of IBS symptoms was predicted by psychological distress (Phillips, Wright, & Kent, 2013).”
From Effectiveness of acceptance and commitment therapy for irritable bowel syndrome non-patients: A pilot randomized waiting list controlled trial (2020) · cites this paper as Phillips et al., 2013

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Authors: Phillips, K., Wright, B. J., & Kent, S.
Affiliations: La Trobe University (AU)
Corresponding author: Kent, Stephen
ORCID: Wright, Bradley J.
Kent, Stephen
Venue: Journal of Psychosomatic Research
Publisher: Elsevier BV
Published: 2013-11
Volume: 75
Issue: 5
Pages: 467-474
ISSN: 0022-3999 (ISSN-L)
DOI: 10.1016/j.jpsychores.2013.08.002
OpenAlex: W2055963492
Cited by: 61
References: 94
Citations by year: 2026: 4 · 2025: 3 · 2024: 6 · 2023: 5 · 2022: 5 · 2021: 2 · 2020: 3 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 9 · 2015: 8 · 2014: 2
FWCI: 5.97
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations: Journal of Psychosomatic Research (publishedVersion)
PubMed (publishedVersion)
Funders: La Trobe University, Melbourne
Topics: Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
Health Sciences › Health Professions › Pharmacy › Infant Health and Development
Keywords: irritable bowel syndrome, psychosocial predictors, symptom severity, alexithymia, coping, psychological distress, gender differences, IBS diagnosis
MeSH terms: Adaptation, Psychological, Adult, Affective Symptoms, Female, Humans, Male, Personality Inventory, Predictive Value of Tests, Severity of Illness Index, Logistic Models, Irritable Bowel Syndrome, Self Report

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Psychosocial predictors of irritable bowel syndrome diagnosis and symptom severity

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