Table 1 Patient characteristics

Gender

35M/6F

9M/1F

1.00

Age (y)

62.5 ± 7.2

60.5 ± 16.9

0.72

Tobacco use

16 (39.0 %)

3 (30.0 %)

0.61

Comorbidities^a

Hypertension

10 (24.4 %)

4 (40.0 %)

0.33

Diabetes mellitus

3 (7.3 %)

1 (10.0 %)

0.78

Coronary artery disease

8 (19.5 %)

2 (20.0 %)

0.97

COPD

8 (19.5 %)

2 (20.0 %)

0.97

Pulmonary function

FVC (L)

3.1 ± 0.6

3.2 ± 0.3

0.38

FEV1 (L)

2.2 ± 0.5

2.3 ± 0.2

0.11

FEV1/FVC %

70.3 ± 8.9

73.5 ± 4.8

0.14