Clinical therapeutics
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Clinical therapeutics · Feb 2008
Randomized Controlled Trial Multicenter StudyValidity, reliability, and responsiveness of the work productivity and activity impairment questionnaire in Crohn's disease.
Crohn's disease (CD) is a chronic inflammatory bowel disease usually diagnosed in early adult life and characterized by unpredictable flares and debilitating symptoms such as diarrhea, abdominal pain, and fever, which can interfere with a patient's ability to work and perform daily activities. ⋯ The discriminative validity, reliability, and responsiveness of the WPAI:CD were demonstrated. The WPAI:CD may be useful for evaluating drug impact on CD.