Research Article
Subjects with Discordant Airways Obstruction: Lost between Spirometric Definitions of COPD
Table 1
Population characteristics and postbronchodilator lung function data ().
| | Male | Female |
| Subjects, (%) | 685 (54.5%) | 573 (45.5%) | Age distribution yrs, (%) | | | 40–50 | 206 (30.1%) | 183 (31.9%) | 51–60 | 202 (29.5%) | 175 (30.5%) | 61–70 | 169 (24.7%) | 136 (23.7%) | 71–80 | 83 (12.1%) | 57 (10.0%) | 81+ | 25 (3.6%) | 22 (3.9%) |
| Body mass index [kg/(m2)], mean (SD) | 26.7 (0.14) | 26.1 (0.20) | FVC (L), mean (%pred.) | 4.5 (97.5%) | 3.4 (100.6%) | FEV1 (L), mean (%pred.) | 3.4 (95.0%) | 2.5 (95.9%) | FEV1/FVC%, mean (%pred.) | 74.1 (97.6%) | 74.5 (95.5%) |
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