Table 1 Cohort characteristics

Male gender (%)

40(85.1%)

3(30%)

Age (years)

72 ± 9.8

57 ± 10.7

BMI (kg/m2)

22.9 ± 4.9

21.2 ± 3.3

Smoker

44

4

FEV1 (% pred)

46.7 ± 18.5

100 ± 14.3

Eosinophils percentage (Eos%) in blood (n)

51

  ≥ 2

19

 <2

32

Eosinophils% in sputum (n)

55

10

  ≥ 3

10

1

 <3

45

9

Frequency of exacerbation in previous year (n)

40

  ≥ 2

7

 <2

33