Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology
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Ann. Allergy Asthma Immunol. · Jan 2012
Randomized Controlled Trial Multicenter StudyEvaluating the minimally important difference of the urticaria activity score and other measures of disease activity in patients with chronic idiopathic urticaria.
The Urticaria Activity Score (UAS) is a widely used patient-reported outcome measure for patients with chronic idiopathic urticaria (CIU) that includes 2 items: intensity of pruritus and number of hives. Items are scored individually, and the UAS7 is calculated as the sum of pruritus and number of hives over 1 week. Recently, its instructions were enhanced. ⋯ The enhanced UAS has adequate measurement properties to support its use in clinical research.