Probiotics: A Clinical Guide

Martin H. Floch, MD; Adam S. Kim, MD

Chapter 20: Irritable Bowel Syndrome (continued)

Eamon M. M. Quigley, MD, FRCP, FACP, FACG, FRCPI

IBS is one of the most common disorders encountered in modern medicine; community surveys in Western Europe and North America suggest a prevalence of around 10% in the adult population.1 It should be stressed, in addition, that IBS appears to be common worldwide, regardless of geography or socioeconomic status. There is no single specific diagnostic test for IBS; its definition relies, therefore, either on the exclusion of diseases that may share its symptomatology in whole or in part, or on the application of symptom-based criteria whose integrity has been validated in cross-sectional and…