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Irritable bowel syndrome in the United States: prevalence, symptom patterns and impact
Author(s) -
Hungin A. P. S.,
Chang L.,
Locke G. R.,
Dennis E. H.,
Barghout V.
Publication year - 2005
Publication title -
alimentary pharmacology and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.308
H-Index - 177
eISSN - 1365-2036
pISSN - 0269-2813
DOI - 10.1111/j.1365-2036.2005.02463.x
Subject(s) - irritable bowel syndrome , medicine , constipation , abdominal pain , gastrointestinal disorder , functional gastrointestinal disorder , physical therapy , psychiatry
Summary Background : The impact of irritable bowel syndrome, a gastrointestinal motility disorder, is underestimated and poorly quantified, as clinicians may see only a minority of sufferers. Aim : To determine the prevalence, symptom patterns and impact of irritable bowel syndrome in the US. Methods : This two‐phase community survey used quota sampling and random‐digit telephone dialling (screening interview) to identify individuals with medically diagnosed irritable bowel syndrome or individuals not formally diagnosed, but fulfilling irritable bowel syndrome diagnostic criteria (Manning, Rome I or II). Information on irritable bowel syndrome symptoms, general health status, lifestyle and impact of symptoms on individuals’ lives was collected using in‐depth follow‐up interviews. Data were also collected for healthy controls identified in the screening interviews. Results : The total prevalence of irritable bowel syndrome in 5009 screening interviews was 14.1% (medically diagnosed: 3.3%; undiagnosed, but meeting irritable bowel syndrome criteria: 10.8%). Abdominal pain/discomfort was the most common symptom prompting consultation. Most sufferers (74% medically diagnosed; 63% undiagnosed) reported alternating constipation and diarrhoea. Previously diagnosed gastrointestinal disorders occurred more often in sufferers than non‐sufferers. Irritable bowel syndrome sufferers had more days off work (6.4 vs. 3.0) and days in bed, and reduced activities to a greater extent than non‐sufferers. Conclusions : Most (76.6%) irritable bowel syndrome sufferers in the US are undiagnosed. Irritable bowel syndrome has a substantial impact on sufferers’ well‐being and health, with considerable socioeconomic consequences.