Fig. 2

Frequencies of A exacerbation requiring systemic corticosteroids (p = 0.30 among the three inflammatory groups by the Kruskal–Wallis test), B exacerbation requiring antibiotics (p = 0.005 among the three groups, p = 0.007 for type 2-low vs type 2-intermedate), C bronchopneumonia (p = 0.01 among the three groups, p = 0.03 for type 2-low vs type 2-high), and D hospitalisation (p = 0.04 among the three groups, p = 0.04 for type 2-low vs type 2-high), in the last 2 years. Boxes and bars indicate upper, lower, and median quartiles