Figure 2From: Increased serum complement C3 and C4 concentrations and their relation to severity of chronic spontaneous urticaria and CRP concentrationSerum C4 concentration in healthy subjects and chronic urticaria (CU) patients with different disease activity. CU (whole) vs. control, p < 0.05; CU-moderate/severe vs. CU-mild, p < 0.05; CU-mild vs. control, p > 0.05.Back to article page