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Table 4 Frequence of inflammatory phenotypes between different age subgroups

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%)#^^^

  1. Comparison between < 40 and 40–70 (*), comparison between < 40 and > 70 (#), comparison between 40–70 and > 70 (^). P < 0.05 (1 sign); p < 0.01 (2 signs), p < 0.001 (3 signs)