From: Etiology of chronic urticaria: the Ecuadorian experience
Urticaria type | Overall patients (n = 112) n (%) |
---|---|
Chronic Spontaneous Urticaria | 86 (76.8) |
 CSU of unknown etiology | 61 (54.5) |
 CSU of known etiology | 25 (22.3) |
 CSU with food allergy | 12 (10.7) |
 Drug associated Urticaria | 5 (4.5) |
 Thyroid Associated Urticaria | 4 (3.6) |
 Chronic Autoimmune Urticaria | 4 (3.6) |
Chronic Inducible Urticaria | 26 (23.2) |
 Symptomatic Dermographism | 12 (10.7) |
 Cold Urticaria | 2 (1.8) |
 Delayed pressure urticaria | 2 (1.8) |
 Solar Urticaria | 1 (0.9) |
 Vibratory Angioedema | 6 (5.4) |
 Cholinergic Urticaria | 3 (2.7) |