الفهرس 
Patients and methodsOnly 14 pages are availabe for public view
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Abstract
IBS is a chronic and debilitating functional gastrointestinal disorder that affects 10% to 25% ,of the population across the world and most studies found a female predominance. Prevalence estimates for IBS vary greatly internationally, both within and between countries. Despite low rates of health care-seeking behaviour, IBS accounts for 28% of gastroenterology practice and 12% of primary care caseloads.