Keren Hod1,2, Yehuda Ringel3,4, Miranda A L van Tilburg5,6,7, Tamar Ringel-Kulka8. 1. Research Division, Epidemiology Service, Assuta Medical Centers, Tel Aviv, Israel. 2. Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, 6997801, Ramat Aviv, Tel Aviv, Israel. 3. Division of Gastroenterology and Hepatology, Meir Medical Center, Tel Aviv University, 59 Tchernichovsky Street, 4428164, Kfar Saba, Israel. ringel@med.unc.edu. 4. Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, 4107 Bioinformatics Building, 130 Mason Farm Road, Chapel Hill, NC, 27599-7080, USA. ringel@med.unc.edu. 5. Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, 4107 Bioinformatics Building, 130 Mason Farm Road, Chapel Hill, NC, 27599-7080, USA. 6. College of Pharmacy and Health Sciences, Campbell University, Buies Creek, NC, USA. 7. School of Social Work, University of Washington, Seattle, WA, USA. 8. Department of Maternal and Child Health, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, 404A Rosenau, CB#7445, Chapel Hill, NC, 27599, USA.
Abstract
BACKGROUND: Bloating is one of the most bothersome symptoms of irritable bowel syndrome (IBS), but its association with other symptoms is not well described. AIMS: We investigated the association between symptoms of abdominal bloating, other IBS symptoms, psychological distress, and comorbid pain conditions. METHODS: We conducted a cross-sectional study on a large cohort of IBS patients with and without symptoms of abdominal bloating and healthy controls. Subjects were assessed for IBS and its subtypes, pain severity, symptoms severity, psychological disturbances, comorbidities, and dietary restrictions of three fluid groups. RESULTS: A total of 484 subjects were investigated. Compared with IBS - B, IBS + B subjects had higher rates of constipation (30% vs. 15%, p = 0.191) and lower rates of diarrhea, (70% vs. 85%, p = 0.191) although these were not statistically significant. Bloating severity correlated with IBS symptoms severity (r = 0.397, p = 0.000), pain severity (r = 0.364, p = 0.000), and both anxiety and somatization scores (r = 0.167, p = 0.015 and r = 0.219, p = 0.001, respectively). Prevalence of fibromyalgia and depression and somatization scores was significantly higher in IBS with bloating than in IBS without bloating. IBS patients with bloating reported more dietary restriction of three fluid groups to control their symptoms compared with healthy controls and IBS patients without bloating. CONCLUSIONS: Abdominal bloating in IBS is associated with increased symptoms and pain severity, somatization, depression, fibromyalgia, and altered dietary fluids composition. Recognizing and addressing these factors in the diagnosis and management of patients with IBS may improve clinical outcome.
BACKGROUND: Bloating is one of the most bothersome symptoms of irritable bowel syndrome (IBS), but its association with other symptoms is not well described. AIMS: We investigated the association between symptoms of abdominal bloating, other IBS symptoms, psychological distress, and comorbid pain conditions. METHODS: We conducted a cross-sectional study on a large cohort of IBSpatients with and without symptoms of abdominal bloating and healthy controls. Subjects were assessed for IBS and its subtypes, pain severity, symptoms severity, psychological disturbances, comorbidities, and dietary restrictions of three fluid groups. RESULTS: A total of 484 subjects were investigated. Compared with IBS - B, IBS + B subjects had higher rates of constipation (30% vs. 15%, p = 0.191) and lower rates of diarrhea, (70% vs. 85%, p = 0.191) although these were not statistically significant. Bloating severity correlated with IBS symptoms severity (r = 0.397, p = 0.000), pain severity (r = 0.364, p = 0.000), and both anxiety and somatization scores (r = 0.167, p = 0.015 and r = 0.219, p = 0.001, respectively). Prevalence of fibromyalgia and depression and somatization scores was significantly higher in IBS with bloating than in IBS without bloating. IBSpatients with bloating reported more dietary restriction of three fluid groups to control their symptoms compared with healthy controls and IBSpatients without bloating. CONCLUSIONS: Abdominal bloating in IBS is associated with increased symptoms and pain severity, somatization, depression, fibromyalgia, and altered dietary fluids composition. Recognizing and addressing these factors in the diagnosis and management of patients with IBS may improve clinical outcome.
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