Because of the irregular nature of bowel habit, the multiple and variable symptoms, and difficulty with remembering symptoms as well as recall bias, it is important to prospectively assess patient-reported bowel symptoms, for use in clinical trials, and for the assessment of patients with constipation.
Basic description: The Constipation Stool Instrument (CSI) is a list of patient-reported symptoms for the evaluation of bowel problems associated with constipation.
The Constipation Stool Instrument (CSI) is a daily, self-administered questionnaire for the assessment of bowel habit.
Constipation comprises of multiple symptoms that describe the frequency and difficulty with bowel movements.
The subject is instructed to fill out all 11 items for one day by responding on each screen presented, and as it relates to each bowel movement.