Open this publication in new window or tab >>University of Gothenburg, Gothenburg Sweden.
Laboratory of Neuro‐Immuno‐Gastroenterology, Digestive System Research Unit, Vall d’Hebron Institut de Recerca (VHIR) and Department of Gastroenterology, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus & CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.
Laboratory of Neuro‐Immuno‐Gastroenterology, Digestive System Research Unit, Vall d’Hebron Institut de Recerca (VHIR) and Department of Gastroenterology, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus & CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.
Department of Psychiatry, Radboud University Medical Center, Donders Institute for Brain, Nijmegen, the Netherlands.
Department of Psychiatry, Radboud University Medical Center, Donders Institute for Brain, Nijmegen, the Netherlands.
Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany.
Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt am Main, Germany.
Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany.
Department of Chronic Diseases and Metabolism, Laboratory for Brain‐Gut Axis Studies (LABGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium.
Department of Chronic Diseases and Metabolism, Laboratory for Brain‐Gut Axis Studies (LABGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium.
Department of Medical and Surgical Sciences, University of Bologna and IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy.
Department of Medical and Surgical Sciences, University of Bologna and IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy.
Department of Gastroenterology‐Hepatology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands.
Department of Gastroenterology‐Hepatology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands.
Group of Psychiatry, Mental Health and Addictions, Vall d'Hebron Research Institut (VHIR), CIBERSAM, Vall d'Hebron Hospital Universitari, Universitat Autònoma de Barcelona, Barcelona, Spain.
Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
Second Medical Department, 'Iuliu Hatieganu' University of Medicine and Pharmacy, Cluj‐Napoca, Romania.
Second Medical Department, 'Iuliu Hatieganu' University of Medicine and Pharmacy, Cluj‐Napoca, Romania.
Laboratory of Neuro‐Immuno‐Gastroenterology, Digestive System Research Unit, Vall d’Hebron Institut de Recerca (VHIR) and Department of Gastroenterology, Vall d’Hebron Hospital Universitari, Vall d’Hebron Barcelona Hospital Campus & CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.
Group of Psychiatry, Mental Health and Addictions, Vall d'Hebron Research Institut (VHIR), CIBERSAM, Vall d'Hebron Hospital Universitari, Universitat Autònoma de Barcelona, Barcelona, Spain.
University of Gothenburg, Gothenburg Sweden.
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2026 (English)In: United European Gastroenterology journal, ISSN 2050-6406, E-ISSN 2050-6414, Vol. 14, no 1, article id e70157Article in journal (Refereed) Published
Abstract [en]
Background: Patients with Irritable bowel syndrome (IBS) frequently suffer from comorbid psychiatric or somatic conditions, but the association with overall GI symptom severity and disease burden in IBS has not yet been established.
Objective: This pan‐European project, the DISCOvERIE project, aimed to characterize IBS patients with and without comorbid psychiatric (anxiety, depression) and/or somatic (fibromyalgia, chronic fatigue syndrome) conditions, and to compare them with disease (psychiatric and/or somatic condition without IBS) and healthy controls to further elucidate the effect of comorbid conditions on the disease burden in IBS.
Methods: Participants from nine different European centers were included: IBS patients (Rome IV criteria) with and without comorbid conditions, disease controls, and healthy controls. The presence of comorbidities was assessed through the Mini International Neuropsychiatric Interview (MINI) for anxiety or depression or through diagnostic criteria for fibromyalgia or chronic fatigue syndrome. Validated questionnaires on IBS (IBS‐SSS), depressive (PHQ‐9), anxiety (GAD‐7) and somatic symptom severity (PHQ‐12), fibromyalgia symptoms (FIQ) and fatigue (MFI) were completed.
Results: In total, 842 participants were recruited between March 2021 and January 2023, of which 607 had IBS, 161 were disease controls and 74 were healthy controls. IBS, anxiety, depression, somatic symptoms and fatigue were more severe in IBS patients with comorbidities compared with IBS patients without comorbidities. The severity of the abovementioned symptoms all increased gradually with increasing number of comorbidities (all p < 0.001).
Conclusion: This large pan‐European study highlights the significant impact of psychiatric and somatic comorbidities in IBS, and their strong link with outcomes and disease burden.
Place, publisher, year, edition, pages
John Wiley & Sons, 2026
Keywords
anxiety, chronic fatigue syndrome, depression, fibromyalgia, gastrointestinal symptoms, IBS, Irritable bowel syndrome, psychiatric diagnoses, symptom burden, symptom severity
National Category
Gastroenterology and Hepatology Psychiatry
Identifiers
urn:nbn:se:oru:diva-126448 (URN)10.1002/ueg2.70157 (DOI)2-s2.0-105025718743 (Scopus ID)
Funder
EU, Horizon 2020, 848228
2026-01-192026-01-192026-01-23Bibliographically approved