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. 2017 Sep 27;153(12):1236–1242. doi: 10.1001/jamadermatol.2017.3182

Figure. Survival Analysis of Chronic Urticarial Resolution Rates.

Figure.

Disease resolution of 10.3 per 100 patient-years. A, Twice, faster resolution in patients with positive basophil activation test (BAT) results was observed in our cohort (P = .02). CD63 level higher than 1.8% represents a positive basophil activation test result, whereas CD63 level of 1.8% or lower is negative. B, Absence of basophils (negative BAT result) was associated with faster resolution of disease (HR, 0.40 [95% CI, 0.20-0,99]; P = .047).