Functional Bowel Disorder Severity Index (FBS)
Duration: 5-10 minQuestion 1 of 9
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How often have you had abdominal pain or discomfort in the past month?
FAQs
What is the Functional Bowel Disorder Severity Index (FBS)?
The Functional Bowel Disorder Severity Index (FBS) is a 9-item questionnaire that assesses the severity of functional bowel disorders.
Who developed the FBS and when?
Developed by Francis, Morris, & Whorwell in 1997.
What type of assessment is the FBS?
It is a self-report questionnaire for functional gastrointestinal disorders.
What does the FBS assess?
- Abdominal pain severity and frequency
- Bloating and abdominal distension
- Bowel habit dissatisfaction
- Impact on daily activities
- Quality of life interference
How many items and what format?
9 items, mixed format (Likert scales, frequency ratings).
How is the FBS scored?
Total score 0-458; higher scores indicate more severe symptoms.
Are there versions of the FBS?
Standard 9-item version; validated for IBS and other functional disorders.
Who can use the FBS?
Adults with suspected functional bowel disorders; used in gastroenterology.
What are the strengths of the FBS?
Quick, reliable, comprehensive assessment of bowel disorder severity.
What are the limitations of the FBS?
Self-report bias; requires clinical correlation.
How is the FBS used?
IBS diagnosis, treatment monitoring, research.