Figure. A Kaplan-Meier survival analysis (one minus survival function) demonstrating the duration of ColdU (n = 27). None of the patients were in remission during the first 2 years of the disease. However, after 3, 5 and 10 years from the onset of symptoms, 6.7%, 13.8%, and 42.6% of ColdU patients, respectively, were in remission. The median duration, when 50% of patients were in remission, was 12 years.

ColdU, cold urticaria.