Chronic idiopathic urticaria was studied as a clinical model for urticarial conditions, since the underlying pathophysiology is similar, regardless of etiology, and because chronic patients can be more easily recruited prospectively.
Kroonista idiopaattista urtikariaa tutkittiin urtikariatilojen kliinisenä mallina, koska niiden patofysiologia on samanlainen riippumatta etiologiasta, ja koska kroonisia potilaita on helpompi rekrytoida prospektiivisesti.