Fig. 3From: Increased platelet activating factor levels in chronic spontaneous urticaria predicts refractoriness to antihistamine treatment: an observational studyPrevalence of subjects with high PAF (≥ 5000 pg/ml) and low PAF (< 5000 pg/mL) in CSU patients versus NCs and H1RA responder versus non-responders. PAF platelet activating factor, CSU chronic spontaneous urticaria, NC healthy normal control, H1RA histamine receptor 1 antagonistBack to article page