From: Asthma in elderly is characterized by increased sputum neutrophils, lower airway caliber variability and air trapping
< 40
40–70
≥ 70
Paucigranulocytic
N = 91 (49%)
156 (33%)**
34 (33%)#
Eosinophilic
70 (38%)
220 (47%)*
37 (35%)^
Neutrophilic
20 (10%)
85 (18%)*
23 (22%)##
Mixed granulocytic
5 (3%)
7 (2%)
10 (10%)#^^^