Characteristics | Patients evaluated | Population estimate | ||
---|---|---|---|---|
n (missing) | Mean (SD) | Median | Min–Max | |
N b | 145 (0) | 464 (6632) | 403 | 6–1721 |
Age, years | 138 (7) | 63.5 (17.4) | 63.6 | 58.8–68.1 |
Male, % | 143 (2) | 68.3 (153) | 68 | 43–100 |
Mean duration of COPD, years | 46 (99) | 8.0 (37.9) | 7.1 | 5.8–11.3 |
Current smokers, % | 118 (27) | 43.2 (127) | 42.9 | 0–65.0 |
Mean of pack-years of cigarettes | 71 (74) | 45.2 (98.6) | 44.0 | 34.8–58.5 |
Mean baseline trough FEV1 (L) | 84 (61) | 1.21 (3.65) | 1.22 | 0.89–1.74 |
Mean % predicted FEV1 | 97 (48) | 45.6 (129) | 45.2 | 32.8–60.1 |
% GOLD grade 2 | 78 (67) | 29 (540) | 19 | 0–99.7 |
% GOLD grades 3 and 4 | 76 (69) | 60 (640) | 54 | 0–100 |
Mean baseline SGRQ score | 70 (75) | 49.4 (79.4) | 48.2 | 38.4–58.6 |
Mean BDI score | 38 (107) | 6.3 (8.4) | 6.4 | 5.1–7.0 |