Irritable bowel syndrome in the general population

Area of Science:

• Gastroenterology
• Epidemiology
• Public Health

Background:

• Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder.
• Understanding the prevalence and associated symptoms of IBS in the general population is crucial for public health initiatives.

Purpose of the Study:

• To determine the prevalence of symptoms compatible with a clinical diagnosis of irritable bowel syndrome (IBS) in the general population.
• To identify associated symptoms and conditions in individuals diagnosed with IBS.

Main Methods:

• A validated postal questionnaire was administered to 2280 randomly selected subjects.
• The Manning criteria were employed to define irritable bowel syndrome (IBS).
• The study included urban and mixed urban-rural populations in Hampshire, UK.

Main Results:

• A response rate of 71% (1620 questionnaires) was achieved.
• 22% of respondents reported symptoms consistent with irritable bowel syndrome (IBS).
• IBS symptoms were associated with increased prevalence of constipation, diarrhea, rectal bleeding, heartburn, dyspepsia, and other conditions.

Conclusions:

• Symptoms consistent with irritable bowel syndrome (IBS) are prevalent in almost a quarter of the general population.
• IBS symptoms are frequently associated with other medical complaints, possibly reflecting smooth muscle dysfunction.