IGHE and asthma: As shown in Table 2 and Figs. 1 and 2, patients with bronchiectasis showed a higher frequency of severe exacerbation of asthma in the last 12 months (P = 0.003), elevated peripheral blood eosinophil counts (P = 0.022) and total IgE levels (P = 0.044), lower FEV1% predicted (P = 0.006), higher LM scores (P = 0.044) and increased occurrence rates of NPs (P = 0.004).