Table 1 Demographics of TPCH training set (n = 30) and TPCH test set (n = 62)

n

10

20

21

41

Age (Mean ± SD yrs)

71 ± 4

67 ± 7

63 ± 10

61 ± 10

Range

63-77

53-78

42-78

41-82

Male/Female

8/2

14/6

18/3

23/18

FEV₁%predicted (Mean ± SD)

81 ± 17

68 ± 15

84 ± 11

84 ± 19

Range

52-107

50-97

61-104

45-116

FEV1/VC (Mean ± SD) %

60 ± 5

54 ± 14

67 ± 6

65 ± 8

Range

50-70

40-70

55-77

48-80

KCO %predicted (Mean ± SD)

79 ± 3

66 ± 9

79 ± 3

62 ± 9

Range

75-85

38-74

75-83

43-74

Pack years (Mean ± SD)

62 ± 32

75 ± 49

65 ± 52

48 ± 24

Range

28-135

24-240

26-225

13-108

Site of tissue collection*

1-LLL

1-LL

2-LLL

2-LL

1-LUL

5-LUL

6-LUL

3-LLL

1-RLL

7-RLL

3-RLL

9-LUL

1-LL &1-RL

5-RUL

3-RML

1-RL

5-RUL

2-RML

7-RUL

5-RLL

4-RML

GOLD Classification

Stage I Mild (≥ 80%)

6

3

13

26

Stage II Moderate (≤ 50-80%)

4

17

8

13

Stage III Severe (≤ 30-50%)

0

0

0

2