Table 1 Patient characteristics at baseline
Variable | n = 36 |
|---|---|
Age, years | 71.7 ± 9.1 |
Male sex, n (%) | 31 (86.1) |
ECOG performance status, n (%) | |
 0 | 29 (80.6) |
 1 | 4 (11.1) |
 2 | 1 (2.8) |
 3 | 2 (5.6) |
Body weight, kg | 62.0 ± 10.9 |
Body surface area, m2 | 1.68 ± 0.17 |
FEV1, L | 1.60 ± 0.54 |
Percentage of predicted FEV1 (%) | 59.69 ± 16.35 |
COPD stage, n (%)* | |
 Stage I | 4 (11.1) |
 Stage II | 21 (58.3) |
 Stage III | 10 (27.8) |
 Stage IV | 1 (2.8) |
GOLD 2017 category, n (%) | |
 Group A | 6 (16.7) |
 Group B | 19 (52.8) |
 Group C | 1 (2.8) |
 Group D | 10 (27.7) |
Smoking status, n (%) | |
 Smoking history, pack-years | 53.5 ± 27.36 |
 Never / former / current smoker | 0 / 32 / 4 |
Prior history of exacerbation within 1 year, n (%) | |
 0 exacerbations | 36 (100) |
 1 exacerbation | 0 |