Characteristics and Clinical Significance of Atopy in Chronic Spontaneous Urticaria: A Cross-Sectional Observational Study

Although larger prospective studies are needed to confirm these results, our study found atopy occurred in nearly half of patients with CSU, and preliminarily links atopy to CSU, suggesting it as a potential risk factor for angioedema, anaphylaxis, and recurrent urticaria, mirroring allergen patterns in other allergic disease.