Table 2 Comparison between adherence groups for health outcomes measured during the one-year study

Adherent (n = 32)

Non-adherent (n = 29)

p

Adherent (n = 37)

Non-adherent (n = 31)

p

Adherent (n = 27)

Non-adherent (n = 42)

p

Pulmonary exacerbations^d

2.6 ± 2

4.0 ± 2

0.00*

3.1 ± 2.2

3.3 ± 2.3

0.75

3.1 ± 2.2

3.2 ± 2.2

0.84

FEV₁, L at 12 months

1.36 ± 0.54

1.29 ± 0.51

0.61

1.35 ± 0.59

1.35 ± 0.50

0.97

1.29 ± 0.44

1.41 ± 0.61

0.40

FEV₁,% predicted at 12 months

65 ± 28

56 ± 23

0.22

63 ± 30

63 ± 22

0.92

65 ± 23

62 ± 29

0.60

QOL-B at 12 months

Physical Functioning

33 ± 28

31 ± 24

0.77

29 ± 26

39 ± 28

0.13

42 ± 28

29 ± 26

0.05*

Role Functioning

48 ± 27

45 ± 21

0.63

44 ± 24

55 ± 24

0.06

48 ± 23

50 ± 26

0.79

Vitality

39 ± 22

39 ± 20

0.92

40 ± 20

40 ± 22

0.98

39 ± 23

40 ± 20

0.73

Social Functioning

42 ± 28

41 ± 22

0.89

39 ± 26

43 ± 25

0.46

37 ± 22

44 ± 27

0.25

Emotional Functioning

73 ± 21

76 ± 18

0.60

74 ± 20

76 ± 20

0.69

73 ± 23

76 ± 18

0.49

Treatment Burden

59 ± 22

57 ± 21

0.83

61 ± 25

59 ± 20

0.66

54 ± 22

64 ± 22

0.07

Health Perceptions

40 ± 18

39 ± 13

0.80

40 ± 18

42 ± 16

0.71

40 ± 19

41 ± 16

0.79

Respiratory Symptoms

61 ± 21

51 ± 20

0.06

60 ± 22

53 ± 20

0.15

54 ± 20

58 ± 22

0.42