Before switching

After switching

p-value

mMRC

1.13 ± 1.15

1.13 ± 1.02

1.000

CAT

10.1 ± 10.2

9.6 ± 10.1

0.240

FVC, L

3.55 ± 0.77

3.56 ± 0.81

0.847

FEV1, L

1.99 ± 0.70

2.00 ± 0.69

0.712

IC, L

2.33 ± 0.58

2.35 ± 0.71

0.846

R5, cmH₂O/L/s

2.82 ± 0.95

2.97 ± 1.06

0.125

R20, cmH₂O/L/s

2.11 ± 0.49

2.29 ± 0.58

0.011

R5 - R20, cmH₂O/L/s

0.71 ± 0.51

0.68 ± 0.56

0.600

X5, cmH₂O/L/s

−1.00 ± 1.18

−0.84 ± 0.84

0.361

ΔX5, cmH₂O/L/s

0.71 ± 1.32

0.51 ± 0.80

0.400

Fres, Hz

10.63 ± 5.80

10.72 ± 5.73

0.432

ALX, cmH₂O/L/s x Hz

6.92 ± 9.93

5.69 ± 7.08

0.096