Subjects with Discordant Airways Obstruction: Lost between Spirometric Definitions of COPD

Table 1

Population characteristics and postbronchodilator lung function data (𝑛=1258).

	Male	Female
Subjects, 𝑛 (%)	685 (54.5%)	573 (45.5%)
Age distribution yrs, 𝑛 (%)
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/(m^2)], 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%)