Irritable Bowel Syndrome and Functional Constipation: Scope of the Problem

Irritable bowel syndrome (IBS) and functional constipation (FC) are highly prevalent functional gastrointestinal conditions worldwide and occur approximately twice as often in women as in men. Although the exact prevalence is uncertain because of variations in diagnostic criteria, symptom overlap, patient populations, and sociocultural factors, most studies cite prevalence for each of approximately 10% to 15%. This article reviews findings surrounding the epidemiology of both IBS and FC, including differences among sex and race, quality of life, and health-seeking patterns and predictors. Relevant findings surrounding costs to healthcare delivery systems and society as a whole also are highlighted. (Adv Stud Med. 2005;5(10B):S947-S954)