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Psychometric Analysis of the Abdominal Score From the Diary for Irritable Bowel Syndrome Symptoms–Constipation Using Phase IIb Clinical Trial Data
Value in Health
The Diary for Irritable Bowel Syndrome Symptoms-Constipation (DIBSS-C) has been developed to assess the core signs and symptoms of irritable bowel syndrome with constipation (IBS-C). This article presents the psychometric evaluation of the DIBSS-C abdominal score. Data for these analyses are from a multicenter phase IIb study in IBS-C patients (NCT02559206). Subjects completed a number of assessments via handheld electronic diary throughout the study. The analyses used the intent-to-treatdoi:10.1016/j.jval.2020.01.002 pmid:32197732 fatcat:dufwerrazjdhdeibhzcopmnyfi