Table 1 Characteristics of the responders (N = 100)

Age (years)

66.1

(8.3)

42–82

Gender

   Male

51

(51)

   Female

49

(49)

Spirometry

   FEV₁ (litre)^a

1.31

(0.50)

0.42–2.54

   FEV₁% predicted^a

46.0

(15.0)

16–79

   FEV₁/FVC%^a

51.6

(12.5)

28–69

Transcutaneus oxygen saturation (SaO₂%)^a

96.0

(1.9)

88–99

Breathlessness (SGRQ)^b

   (0–100)

49.8

(27.8)

0.0–97.5

Anxiety (HADS-A)^b

   (0–21)

5.9

(3.9)

0.0–17.0

Depression (HADS-D)^b

   (0–21)

4.5

(3.7)

0.0–19.0

Exercise capacity (ISWT)^a

   (metre)

336.7

(163.9)

57.0–770.0

Physical health summary scale (SF-36)^a

38.4

(9.9)

14.7–58.2

Mental health summary scale(SF-36)^a

48.6

(10.4)

20.8–68.3