Table 1 Baseline characteristics of the study participants.
From: Lifestyle practices that reduce seasonal PM2.5 exposure and their impact on COPD
Characteristics | N |
|---|---|
Age, years (SD) | 67.4 ± 9.8 |
Male, n (%) | 94 (90.38) |
Smoking status, n (%) | |
Never smoker | 17 (16.35) |
Ex-smoker | 64 (61.54) |
Current-smoker | 23 (22.12) |
Smoking history (pack-year), mean (SD) | 33.73 ± 23.33 |
mMRC, n (%) | |
Grade 1 | 62 (59.62) |
Grade 2 | 12 (11.54) |
Grade 3 | 16 (15.38) |
Grade 4 | 14 (13.46) |
Acute exacerbation history last year | 38 (36.54) |
Inhaler usage, n (%) | |
ICS + LABA | 21 (20.19) |
LAMA + LABA | 33 (31.73) |
LAMA + LABA + ICS | 39 (37.5) |
LABA + LAMA + SABA | 3 (2.88) |
ICS + LABA + LAMA + SABA | 2 (1.92) |
LAMA + SABA | 1 (0.96) |
LAMA | 2 (1.92) |
ICS + LAMA | 1 (0.96) |
Others | 2 (1.92) |
Lung function, mean (SD) | |
PreBD FEV1, L (% predicted) | 1.57 ± 0.54 (52.69 ± 17.11) |
PreBD FVC, L (% predicted) | 3.30 ± 0.84 (79.64 ± 16.27) |
PostBD FEV1, L (% predicted) | 1.62 ± 0.56 (54.53 ± 16.64) |
PostBD FVC, L (% predicted) | 3.28 ± 0.86 (80.52 ± 14.48) |
CAT score, mean (SD) | 17.04 ± 8.65 |
SGRQ total, mean (SD) | 38.43 ± 2.45 |
R5-R20 (SD) | 0.18 ± 0.03 |
