Table 1.
Patient characteristics
| Characteristic | n = 22 COPD |
|---|---|
| Gender, male/female | 9/13 |
| Age, years | 64 (9) |
| Current/ex-smokers | 9/13 |
| Pack years | 46 (25) |
| Prescribed duala/tripleb 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) |
Data is mean (SD) where appropriate
aICS/LABA
bICS/LABA/LAMA
cPost-bronchodilator