Fig. 4
From: IgE is associated with exacerbations and lung function decline in COPD
IgE and exacerbation history. Shown are total IgE and allergen-specific IgE (as measured by the SX1 screening test) levels in patients without and in patients with at least one exacerbation in the last 12 months prior to IgE measurement (COSYCONET cohort). The bars show median values with interquartile ranges. The difference between men with and without exacerbations was highly significant (***: p < 0.001)