Fig. 1

Study protocol. CSU chronic spontaneous urticaria; PRO patient-reported outcome; AE-QoL Angioedema Quality-of-Life Questionnaire; CU-Q2oL Chronic Urticaria Quality-of-Life Questionnaire; DLQI Dermatology Life Quality Index; EQ-5D-3L three-level EuroQoL-5D; UAS7 Weekly Urticaria Activity Score; WPAI-SHP Work Productivity and Activity Impairment – Specific Health Problems