The literature on chronic idiopathic urticaria (CIU) lacks information on demographic characteristics and comorbidities. To fill this gap, investigators at PHAR, LLC initiated an analysis to better define the insured population. By conducting a cross-sectional analysis of insurance claims, investigators found that although antihistamines were the most common treatment for CIU, physicians also frequently prescribed oral corticosteroids. The study was conducted in partnership with Genentech, Inc. as well as investigators at the David Geffen School of Medicine at UCLA and NOVA Southeastern University College of Osteopathic Medicine. View the abstract at the Annals of Allergy, Asthma & Immunology website.