Cholinergic Urticaria: Clinical Presentation and Natural History in a Tropical Country

Figure 1

A Kaplan-Meier survival analysis (one minus survival function) demonstrated the remission during the first 2 years of CholU that was revealed in 5 (31.3%) patients. In addition, 2 (12.5%), 5 (35.5%), and 6 (67.9%) of patients were in remission after 1, 5, and 13 years, respectively, from the onset of CholU symptoms. The median duration when half of patients of CholU were in remission was 12.2 years. Abbreviations: CholU: cholinergic urticaria; yr: year.