Table 1 Subject baseline characteristics

Subjects, n

90

79

57

Age, years

53.8 ± 3.6

67.4 ± 8.8*

66.5 ± 8.8*

Sex, Male/Female

77/13

70/9

53/4

Smoking history, pack-years

16.8 ± 18.3

39.4 ± 28.5*

38.3 ± 25.0*

DLco, % predicted^a

–

50.2 ± 16.3

51.2 ± 16.1

BALF total cell, × 10⁴/ml

–

–

21.9 ± 16.0

BALF macrophage, %

–

–

83.4 ± 11.4

BALF lymphocyte, %

–

–

11.4 ± 10.3

BALF neutrophil, %

–

–

3.3 ± 3.3

BALF eosinophil, %

–

–

1.9 ± 2.6