Table 1 Patient characteristics

Gender, male/female

9/13

Age, years

64 (9)

Current/ex-smokers

9/13

Pack years

46 (25)

Prescribed dual^a/triple^b inhaler therapy (n/n)

2/20

Prescribed supplemental oxygen (n)

0

Exacerbation history (n, zero/one/two exacerbation(s) in the last year)

13/8/1

CAT score

19.6 (8.4)

mMRC Dyspnoea Scale (n, grade 0/1/2/3/4)

3/10/4/4/1

FEV1 reversibility (%)

19 (13)

FEV₁ (L)^c

1.27 (0.34)

FEV₁ (%)^c

49 (9)

FVC (%)^c

90 (10)

FEV₁/FVC ratio (%)^c

43 (11)

FEF25–75% (%)^c

18 (7)

sGaw (L/s/kPa/L)

0.469 (0.195)

Raw (kPa/L/s)

0.512 (0.140)

RV (L)

3.16 (0.91)

RV (% predicted)

152 (35)

IC (% predicted)

80 (15)

FRC (% predicted)

139 (27)

TLC (% predicted)

114 (13)

R5 (kPa/L/s)^c

0.570 (0.172)

R20 (kPa/L/s)^c

0.395 (0.103)

R5–R20 (kPa/L/s)^c

0.176 (0.118)

X5 (kPa/L/s)^c

 − 0.289 (0.150)

∆X5 (kPa/L/s)^c

0.215 (0.194)

Fres (1/s)^c

23.40 (5.07)

AX (kPa/L)^c

2.427 (1.739)