In contrast, A. fumigatus IgG sensitisation was only significantly associated with bronchiectasis (p < 0.005), tree-in-bud (p < 0.05) and fleeting shadows (p < 0.05), and at lower significance than for IgE, whilst total IgE was only significantly associated with tree-in-bud (p < 0.01) and fleeting shadows (p < 0.001). Here, IGHE is linked to bronchiectasis.