Table 6 Comparison of ACT and CAT between patients with correct and incorrect device application at baseline

ACT total sum score

19.40 (18.04–20.75)

19.61 (17.93–21.28)

CAT total sum score

14.97 (13.48–16.47)

18.07 (15.70–20.44)

 Question 1: Prevention to go work/school

3.90 (3.57–4.22)

4.00 (3.58–4.42)

 Question 2: Shortness of breath

3.63 (3.23–4.02)

3.54 (3.02–4.05)

 Question 3: Asthma symptoms at night

3.75 (3.33–4.17)

4.04 (3.55–4.52)

 Question 4: Use of reliever medication

4.13 (3.75–4.50)

4.11 (3.67–4.55)

 Question 5: Self-assessment of asthma control

4.00 (3.73–4.27)

3.93 (3.63–4.23)

 Question 1: Frequency of cough

2.22 (1.91–2.53)

2.79 (2.35–3.23)

 Question 2: Amount of phlegm

2.10 (1.80–2.39)

2.60 (2.11–3.10)

 Question 3: Tightness in the chest

1.72 (1.44–2.00)

2.09 (1.61–2.58)

 Question 4: Breathlessness while walking up a hill or one flight of stairs

3.18 (2.84–3.52)

3.77 (3.38–4.16)

 Question 5: Limitation doing activities at home

1.81 (1.45–2.16)

2.19 (1.70–2.68)

 Question 6: Confidence to leave home because of lung conditions

0.56 (0.33–0.78)

0.67 (0.33–1.02)

 Question 7: Sleep quality

1.18 (0.91–1.45)

1.60 (1.10–2.11)

 Question 8: Amount of energy

2.21 (1.89–2.53)

2.35 (1.91–2.79)