Age (y) | FEV1 (l) | FEV1 % of pred | FVC (l) | FVC % of pred | FEV1/FVC % of pred. | FEV1/FVC RSD | |
Males (n = 98) | 63.4 (11.0) | 2.00 (0.84) | 64.2 (20.3) | 3.61 (1.1) | 92.0 (19.8) | 70.8 (11.8) | −3.07 (1.22) |
Females (n = 85) | 59.9 (11.5) | 1.60 (0.52) | 71.1 (18.3) | 2.65 (0.7) | 99.5 (22.8) | 77.0 (8.1) | −2.73 (0.96) |
Total (n = 183) | 61.7 (11.3) | 1.83 (0.75) | 67.2 (19.7) | 3.2 (1.1) | 95.2 (21.4) | 73.5 (10.8) | −2.92 (1.13) |
p Value | 0.05 | 0.001 | 0.05 | 0.0001 | 0.05 | 0.0005 | 0.052 |
Values are mean (SD).
p Values refer to difference between the genders.
COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; RSD, residual standard deviation.