Table 1 Demographic and clinical characteristics of the study population
Characteristic | Patients (N = 2162) |
|---|---|
Male sex, n (%) | 1513 (70.0) |
Age, mean (SD), years | 66.9 (8.4) |
BMI, mean (SD), kg/m2 | 27 (6.2) |
Retired patients, n (%) | 1755 (81.2) |
High-school and university education, n (%) (n = 2157) | 788 (36.4) |
Active smoker, n (%) | 691 (32.0) |
Smoking history, mean (SD) pack years | 41.31 (26.37) |
Number of comorbidities, mean (SD) | 1.28 (1.04) |
% predicted FEV1, mean (SD) | 52.6 (17.3) |
Mean post-BD FVC (SD), mL (n = 2033) | 2737.4 (846.5) |
Mean post-BD FEV1/FVC (SD) | 0.537 (0.105) |
BODEx score, mean (SD) | 2.6 (1.8) |
COTE index, mean (SD) | 1.5 (2.2) |
Duration of COPD, mean (SD), years | 7.4 (5.8) |
COPD severity | |
GOLD group I (mild) | 142 (6.6) |
GOLD group II (moderate) | 1033 (47.8) |
GOLD group III (severe) | 793 (36.7) |
GOLD group IV (very severe) | 194 (9.0) |
mMRC grade, median (Q1-Q3) | 2 (1–3) |
mMRC dyspnea grade, n (%) | |
0 | 127 (5.9) |
1 | 634 (29.3) |
2 | 852 (39.4) |
3 | 447 (20.7) |
4 | 102 (4.7) |
Total CAT score, mean (SD) | 16.5 (7.9) |
Exacerbations in the last year, n (%) | 1335 (61.8) |
Number of COPD exacerbations in the last year/patient, median (IQR) | 1 (0–2) |
Number of COPD-related visits in the last year/patient, median (IQR) | |
To general practitioner (n = 1787) | 2 (0–6) |
To pulmonology / internal medicine specialist (n = 2145) | 2 (2–4) |